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Braz. j. oral sci ; 22: e230961, Jan.-Dec. 2023. ilus
Article in English | LILACS, BBO | ID: biblio-1442826


There is no consensus on the most appropriate method for normalizing electromyography (EMG) signals from masticatory muscles during isotonic activity. Aim: To analyze the best method for data processing of the EMG signal of the masticatory muscles during isotonic activity (non-habitual chewing), comparing raw data and different types of normalization. Methods: This is a cross-sectional study. Women aged between 18 and 45 years were selected. Anthropometric data were collected (age, height, body mass index ­ BMI, masticatory preference) as well as EMG signal (root mean square ­ RMS) data for the anterior temporal and masseter bilaterally, and for the suprahyoid muscles, during isotonic (non-habitual chewing) and isometric tasks. EMG data were processed offline using Matlab® Software. The normalization of the EMG signal was carried out using the 2nd masticatory cycle, chosen at random, of the 20 cycles collected, the maximum RMS value, and the maximum voluntary contraction (MVC). To analyze the best method of data processing for the isotonic data, the coefficient of variation (CV) was calculated. Descriptive data analysis was adopted, using the mean and standard deviation. ANOVA with repeated measures was used to detect significant differences between the methods of normalization. Statistical significance was set at 5% (α<0.05). Results: The final sample of this research was composed of 86 women. The volunteers presented an average age of 27.83±7.71 years and a mean BMI of 22.85±1.91 Kg/m2. Regarding masticatory preference, 73.25% reported the right side, and 26.75% the left side. Considering the comparison between the methods, the %CV measure of the 2nd cycle showed the lowest variation coefficient during biting for all the muscles from the raw data, RMS Max, and MVC (p=0.001, p=0.003, and p=0.001 respectively). Conclusion: In conclusion, for non-habitual chewing activity, the results of this study recommend data processing using normalization with the second cycle during chewing

Humans , Female , Adult , Middle Aged , Women , Anthropometry , Electromyography , Mastication , Masticatory Muscles , Muscles
Rev. chil. neuro-psiquiatr ; 60(4): 394-402, dic. 2022. tab, graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1423715


Introducción: el estrés crónico afecta el equilibrio inmunológico alterando los niveles séricos de interleuquina-6 (IL-6) e interferón gama (INF-γ), dicha alteración afecta al sistema nervioso y al comportamiento humano. La masticación adecuada disminuiría dichos efectos. El objetivo del estudio fue determinar el efecto del estrés crónico y de la masticación sobre los niveles séricos de IL-6 e INF-γ. Métodos: experimento donde se emplearon 64 ratones Balb/c de 8 semanas de edad. Se dividieron en 4 tratamientos: Grupo NE: Masticación normal + estrés, Grupo N: masticación normal sin estrés, Grupo DE: Masticación deficiente + estrés, Grupo D: masticación deficiente sin estrés. Mediante test de ELISA se midió IL-6 e IFN-γ alfinal de la 4ta y de la 8va semana de tratamiento. Resultados: tanto la IL-6 como el IFN-γ fueron mayores en el grupo DE (p<0,05) al final de la 4ta semana. Al evaluarlos al término de la 8va semana se observó que en el grupo NE se incrementó la IL-6 respecto al resto de grupos (p<0,0001), y en el grupo DE fue donde se encontró mayor cantidad de IFN-γ (p<0,0001). Conclusión: el estrés crónico y la masticación deficiente incrementan los niveles séricos de IL-6 e IFN-γ. En cambio, la adecuada masticación disminuye el nivel de tales citoquinas al final de la cuarta semana de tratamiento.

Introduction: chronic stress affects the immune balance by altering the serum levels of interleukin-6 (IL-6) and gamma interferon (INF-γ), this alteration affects the nervous system and human behavior. Appropriate chewing would lessen these effects. The aim of this study was to determine the effect of chewing and chronic stress over serum levels of IL-6 and INF-γ. Methods: experiment in which 64 Balb/C mice of 8 weeks of age were used, they were divided into 4 treatments: Group NE: Normal chewing + stress, Group N: normal chewing without stress, Group DE: Chewing poor + stress, Group D: poor chewing without stress. IL-6 and IFN-γ were measured by ELISA after 4 and 8 weeks of treatment. Results: both IL-6 and IFN-γ were higher in the DE group (p < 0,05) at the end of fourth week of treatment. When evaluating the animals at the end of the eighth week of treatment, it was observed that in the NE group, the IL-6 was increased with respect to the rest (p < 0,0001) and the DE group showed more IFN-γ (p < 0,0001). Conclusion: stress and poor chewing increase serum IL-6 and IFN-γ. In contrast, appropriate chewing decreases the effects of stress on the increase of such cytokines at the end of the fourth week of treatment in animals.

Animals , Male , Mice , Stress, Psychological , Interleukin-6/analysis , Interferon-gamma/analysis , Mastication , Enzyme-Linked Immunosorbent Assay , Chronic Disease , Mice, Inbred BALB C
Braz. j. oral sci ; 21: e225757, jan.-dez. 2022. ilus
Article in English | LILACS, BBO | ID: biblio-1366215


Aim: This study aimed to evaluate the effect of frozen storage on the physical properties of a silicone-based test food material, highly used to evaluate the masticatory performance in research settings. Methods: A total of 1,666 silicone cubes of Optosil Comfort® with 5.6-mm edges were shaped and stored at -18°C. The cubes were subsequently tested for flexural strength (maximum force, displacement, stress, and strain) before breaking (n = 136), changes in weight and size (n = 170), and masticatory performance (n = 1360) at eight timepoints: immediately after cube preparation (baseline, no freezing), and 1, 2, 3 and 4 weeks, and 2, 4 and 6 months after frozen storage. The cubes were thawed 8 h before each assessment. Results: The maximum force, stress, maximum displacement, and deformation values for the cubes were not affected by freezing (P > 0.05). At all of the time points, the cubes exhibited similar weight (P = 0.366) and size (identical values). The masticatory performance for the cubes also showed no differences from baseline through 6 months (P = 0.061). Conclusion: Freezing Optosil Comfort® silicone cubes did not alter the physical and mechanical properties of the material, being suitable to optimize the assessment of masticatory parameters for research purposes

Humans , Male , Adult , Silicone Elastomers , Materials Testing/methods , Freezing , Flexural Strength , Mastication , Time Factors
Rev. cir. traumatol. buco-maxilo-fac ; 22(4): 48-52, out.-dez. 2022. ilus
Article in Portuguese | LILACS, BBO | ID: biblio-1415188


OBJETIVO: Relatar um caso clínico em que foi utilizado enxerto autógeno na região anterior da maxila fixado com implantes. RELATO DE CASO: Paciente do gênero feminino, 46 anos, há 13 anos compareceu à Clínica de Implantodontia do Programa de Pós Graduação da UFPA tendo como queixa principal desconforto estético e dificuldade na mastigação, durante o exame clínico intraoral observou-se a ausência dos elementos 11,12, 21,22 e grande defeito ósseo em formato de U invertido. O tratamento foi dividido em duas etapas: na primeira foi realizada a correção do defeito ósseo em espessura com enxerto ósseo em bloco retirado da região mentoniana, e na segunda etapa foi realizada a correção em altura com enxerto ósseo em bloco retirado do ramo mandibular, na fixação do referido enxerto instalou-se simultaneamente os implantes. Após 13 anos, a paciente retornou para uma consulta de controle e durante a avaliação dos exames clínicos e radiológicos, observou-se que os implantes encontravam-se osseointegrados, sem sintomatologia e com ligeira perda óssea. CONCLUSÃO: Os implantes quando associados ao enxerto autógeno em bloco demonstraram-se eficazes em relação á estética e função no decorrer dos anos... (AU)

OBJECTIVE: To report a clinical case in which autogenous graft was used in the anterior region of the maxilla fixed with implants. CASE REPORT: 13years ago, a 46-year-old female patient, attended the Implantology Clinic of the UFPA Graduate Program with aesthetic discomfort and difficulty chewing as the main complaint, during the intraoral clinical examination, the absence of elements 11, 12, 21, 22 and large bone defect in inverted U format was observed. The treatment was divided into two stages: in the first one, the bone defect was correct in thickness with a block osseum graft removed from the mentionian region, and in the second stage, the correction was performed in height with block bone graft removed from the mandibular branch, and the implants were installed in the fixation of the said graft. After 13 years, the patient returned for a control consultation, and during the evaluation of clinical and radiological examinations, it was observed that the implants were Osseo integrated, without symptomatology and with slight bone loss. CONCLUSION: Implants when associated with autogenou block graft have been shown to be effective in relation to aesthetics and function over the years... (AU)

OBJETIVO: Relatar un caso clínico en que fue utilizado injerto autógeno en la región anterior de la maxila fijado con implantes. CASO CLÍNICO: Paciente del género femenino,46 años, compareció a Clínica de Implantología del Programa de Post-Graduación de la UFPA teniendo como queja principal, el malestar estético y la dificultad para masticar, durante el examen clínico intraoral, se observó la ausencia de elementos 11,12,21,22 y grande defecto óseo en formato U invertida. El tratamiento fue dividido en dos etapas: en la primera fue realizada la corrección de lo defecto óseo en espesor con material retirado de la región mentoniana, y en la segunda etapa fue realizada la corrección en altura con injerto óseo retirado de la rama mandibular, en la fijación de dicho injerto, se instalaron los implantes simultáneamente. Después de 13 años, el paciente retornó para una consulta de control, y durante la evaluación de los exámenes clínicos y radiológicos, se observó que los implantes estaban osteointegrados, sin sintomatología y con ligera pérdida ósea. CONCLUSIÓN: Los implantes cuando asociados el injerto de bloqueo autógeno se demostraron eficaces en relación con la estética y la función, en el trascurso de los años... (AU)

Humans , Female , Middle Aged , Transplantation, Autologous , Dental Implantation, Endosseous , Maxilla , Maxilla/surgery , Esthetics, Dental , Mastication
J. oral res. (Impresa) ; 11(3): 1-10, jun. 30, 2022. ilus, tab
Article in English | LILACS | ID: biblio-1427370


Introduction: The objective of this study was to explore the electrical activity of the superficial muscles of mastication required to exert unilateral maximum bite force in subjects with different body mass index. Material and Methods: A cross-sectional observational study was conducted with a sample of 21 participants with an average age of 22.9 ± 3.5 years who were classified according to their body mass index, forming three study groups: normal weight (18.5-24.9), overweight (25-29.9) and obesity (≥30), with seven participants each. Through surface electromyography, the superficial muscles of mastication during right and left maximum bite force were evaluated. Results: No statistically significant differences in the maximum bite force were observed between the study groups. The data obtained from the electromyographic analysis of the superficial muscles of mastication demonstrate a trend indicating that subjects with a normal body mass index similarly activate the muscles on each side when performing a maximum bite force on a particular side, while overweight or obese subjects demonstrated significantly greater activation of the temporalis muscle associated with the side where the maximal bite force is performed. Conclusion: Our findings suggest that the maximum bite force is not influenced by body mass index and that during the performance of a maximum bite force subjects with increased body mass index present a greater activation of the temporalis muscle associated with the side where the maximum bite force was performed.

Introducción: El objetivo de este estudio fue explorar la actividad eléctrica de los músculos superficiales de la masticación, necesarios para ejercer la máxima fuerza de mordida unilateral, en sujetos con diferente índice de masa corporal. Material y Métodos: Se realizó un estudio observacional de corte transversal con una muestra de 21 participantes con una edad promedio de 22.9 ± 3.5 años, quienes fueron clasificados de acuerdo a su índice de masa corporal, formando tres grupos de estudio: peso normal (18,5-24,9), sobrepeso (25,0-29,9) y obesidad (≥30.0), con siete participantes cada uno. La electromiografía de superficie evaluó los músculos superficiales de la masticación durante la fuerza de mordida máxima derecha e izquierda. Resultados: No se observaron diferencias estadísticamente significativas en la fuerza de mordida máxima entre los grupos de estudio. Los datos obtenidos del análisis electromiográfico de los músculos superficiales de la masticación demuestran una tendencia que indica que los sujetos con un índice de masa corporal normal activan de manera similar los músculos de cada lado cuando ejercen la fuerza de mordida máxima en un lado en particular. mientras que los sujetos con sobrepeso u obesos demostraron una activación significativamente mayor del músculo temporal asociado con el lado donde se realiza la fuerza máxima de mordida. Conclusión: Nuestros hallazgos sugieren que la fuerza de mordida máxima no está influenciada por el índice de masa corporal y que durante la realización de una fuerza de mordida máxima los sujetos con índice de masa corporal aumentado presentan una mayor activación del músculo temporal asociado al lado donde se realizó la fuerza de mordida máxima.

Humans , Male , Female , Adolescent , Adult , Young Adult , Bite Force , Body Weight/physiology , Mastication/physiology , Masticatory Muscles/physiology , Temporal Muscle , Body Mass Index , Electromyography/methods
Rev. ADM ; 79(3): 177-181, mayo-jun. 2022.
Article in Spanish | LILACS | ID: biblio-1379096


La masticación tiene como objetivo la adecuada preparación de los alimentos para su deglución y digestión. Cualquier alteración en el sistema estomatognático puede deteriorar la masticación. El odontó- logo es el profesional responsable de mantener y/o restaurar la función masticatoria. La evaluación de la función masticatoria puede hacerse de forma subjetiva utilizando cuestionarios para medir la percepción del paciente sobre su capacidad masticatoria o de forma objetiva analizando la fuerza oclusal, la actividad electromiográfica de los músculos mas- ticadores, la trayectoria de la mandíbula al masticar o la capacidad de trituración de los alimentos. Estos métodos se utilizan en proyectos de investigación, pero en la clínica ¿evaluamos si existe alguna alteración al masticar y al finalizar el tratamiento si cumplimos con el objetivo de restaurar la función masticatoria? ¿Realmente nos preocupamos por mantener y/o restaurar la función masticatoria? Por lo general no, ni en los consultorios, ni en las clínicas universitarias. Es esencial que nos concienticemos de nuestra responsabilidad y para ello es necesario que se le dé mayor peso curricular a la función masticatoria y cómo evaluarla. Seamos realmente custodios de la función masticatoria de nuestros pacientes (AU)

The goal of chewing is to properly prepare food for swallowing and digestion. Any problem in the stomatognathic system can deteriorate chewing. The professional responsible of maintaining and/or restoring masticatory function is the dentist. Masticatory function can be evaluated subjectively through questionnaires to measure the patient's perception of his/her masticatory capacity or objectively analyzing occlusal force, the electromyographic activity of the masticatory muscles, the movements of the mandible during chewing or the individual's capacity to breakdown food. These methods are used in research projects but, do we examine if there is any problem during chewing and if we are achieving our goal of restoring masticatory function at the end of the treatment in our offices? Do we really focus on maintaining and/or restoring masticatory function? Not truly, not in our offices or university clinics. It is imperative that we acknowledge our responsibility but for that it is essential that masticatory function and how to evaluate it is given more weight in the curriculum. Let us be genuine guardians of the masticatory function of our patients (AU)

Humans , Stomatognathic System , Mastication , Masticatory Muscles , Perception , Bite Force , Surveys and Questionnaires , Deglutition/physiology
J. oral res. (Impresa) ; 11(1): 1-11, may. 11, 2022. ilus, tab
Article in English | LILACS | ID: biblio-1399662


Introduction: Chewing is a learned orofacial function, important in the nutrition process of most mammals. It has been described that it can vary according to the characteristics of the individuals and the characteristics of the food. The aim of this study was to compare the kinematic characteristics of mastication in subjects with different body mass index (BMI), including foods of different hardness in the analysis. Material and Methods: A cross-sectional observational study was conducted. The mastication of 3.7 g of peanut (soft food) and 3.7 g of carrot (hard food) was compared among three study groups formed according to BMI: normal weight (BMI 18.5-24.9), overweight (BMI 25-29.9) and obese (BMI ≥30); each with 7 participants. The kinematics of the masticatory movement were assessed with a 3D Electromagnetic Articulograph, the characteristics analyzed were number of masticatory cycles, masticatory frequency, speed and area of the cycles. Results: No significant differences were noted among the study groups for the number of masticatory cycles, frequency or speed in the two foods studied. It was observed that when chewing carrot, the horizontal area of the masticatory cycles was significantly larger in the obese than in the overweight group. However, when chewing peanuts, this parameter did not present significant differences among the different groups. A comparison of the characteristics of mastication of the two foods revealed that the carrot chewing presented a significantly greater masticatory frequency and speed than the peanut chewing. Conclusion: This study demonstrated that food hardness influences the kinematic characteristics of mastication more than BMI, noting that hard foods are masticated faster and more frequently than soft foods and that masticatory frequency tends to increase with BMI.

Introduction: Chewing is a learned orofacial function, important in the nutrition process of most mammals. It has been described that it can vary according to the characteristics of the individuals and the characteristics of the food. The aim of this study was to compare the kinematic cha-racteristics of mastication in subjects with different body mass index (BMI), including foods of different hardness in the analysis. Material and Methods: A cross-sectional observational study was con- ducted. The mastication of 3.7 g of peanut (soft food) and 3.7 g of carrot (hard food) was compared among three study groups formed according to BMI: normal weight (BMI 18.5-24.9), overweight (BMI 25-29.9) and obese (BMI ?30); each with 7 participants. The kinematics of the masticatory movement were assessed with a 3D Electromagnetic Articulograph, the characteristics analyzed were number of masticatory cycles, masticatory frequency, speed and area of the cycles. Results: No significant differences were noted among the study groups for the number of masticatory cycles, frequency or speed in the two foods studied. It was observed that when chewing carrot, the horizontal area of the masticatory cycles was significantly larger in the obese than in the overweight group. However, when chewing peanuts, this parameter did not present significant differences among the different groups. A comparison of the characteristics of mastication of the two foods revealed that the carrot chewing presented a significantly greater masticatory frequency and speed than the peanut chewing. Conclusion: This study demonstrated that food hardness influences the kinematic characteristics of mastication more than BMI, noting that hard foods are masticated faster and more frequently than soft foods and that masticatory frequency tends to increase with BMI.

Humans , Male , Female , Adult , Young Adult , Body Weight/physiology , Body Mass Index , Mastication/physiology , Biomechanical Phenomena , Overweight/physiopathology , Food , Obesity/physiopathology
Rev. Odontol. Araçatuba (Impr.) ; 43(1): 57-61, jan.-abr. 2022. ilus
Article in Portuguese | LILACS, BBO | ID: biblio-1361720


A agenesia dentaria é uma anomalia de desenvolvimento caracterizada pela determinação congênita de menor numero de dentes, podendo estar associada a síndromes genéticas ou ocorrer isoladamente. Embora seja considerada uma das anomalias mais frequentes quando envolve terceiros molares, segundo pré-molares e incisivos laterais, sua ocorrência em dentes estáveis, tais como o canino e o primeiro molar permanente é rara. Desta forma, este relato apresentará o caso de uma paciente do sexo feminino, 8 anos idade, que iniciou tratamento de rotina na Clínica de Odontopediatria da UNIFENAS. Na anamnese não foi relatada pela responsável a ocorrência de alterações sistêmicas, nem queixa ou histórico odontológico relevante. No exame clínico odontológico, notou-se o não irrompimento do primeiro molar permanente superior direito (16). Diante dos exames de imagem, foi confirmada a agenesia do dente 16 e também do canino permanente superior direito (13). A agenesia, sobretudo de dentes estáveis e relevantes no arco dentário, pode comprometer o desenvolvimento adequado da oclusão, mastigação, fonação e estética. Desta maneira, é importante o diagnóstico precoce desta ocorrência com o objetivo de favorecer a elaboração de um adequado plano de tratamento e, minimizar as sequelas destas agenesias atípicas(AU)

Dental agenesis is a developmental anomaly characterized by the congenital determination of fewer teeth, may be associated with genetic syndromes or occur in an isolated form. Although it is considered one of the most frequent anomalies when it involves third molars, second lateral premolars and incisors, the occurrence in stable teeth, such as the permanent canine and the permanent first molar is rare. This report will present the case of an 8-year-old female patient who started routine treatment at the Pediatric Dentistry Clinic of UNIFENAS. In the anamnesis, the responsible person did not report the occurrence of systemic alterations, or a relevant dental complaint or history. On dental clinical examination, it was noticed the non-rupture of the permament maxillar right first molar (16). In view of the imaging tests, the agenesis of tooth 16 and also of the permanent maxillary right canine (13) was confirmed. Agenesis, especially of stable and relevant teeth in the dental arch, may compromise the proper development of occlusion, chewing, phonation and aesthetics. Thus, it is of paramount importance to early diagnosis of this occurrence in order to favor the development of an appropriate treatment plan in order to minimize the sequelae of these atypical agenesis(AU)

Humans , Male , Child , Phonation , Cuspid , Anodontia , Molar , Dental Occlusion , Esthetics, Dental , Mastication , Anodontia/diagnosis , Anodontia/therapy
Audiol., Commun. res ; 27: e2669, 2022. tab, graf
Article in Portuguese | LILACS | ID: biblio-1393979


RESUMO Objetivo identificar e sintetizar evidências sobre estratégias utilizadas no treino da mastigação e deglutição em indivíduos com disfunção temporomandibular e dor orofacial. Estratégia de pesquisa revisão de escopo desenvolvida com consulta nas bases de dados MEDLINE, LILACS, BBO, IBECS, BINACIS, CUMED, SOF, DeCS, Index Psi, LIPECS e ColecionaSUS (via BVS), Scopus, CINAHL, Embase, Web of Science, Cochrane e na literatura cinzenta: Biblioteca Digital Brasileira de Teses e Dissertações (BDTD), OpenGrey e Google Acadêmico. Critérios de seleção estudos quantitativos ou qualitativos, sem limite temporal e sem restrição de idioma, que continham os seguintes descritores ou palavras-chave: Articulação Temporomandibular, Síndrome da Disfunção da Articulação Temporomandibular, Transtornos da Articulação Temporomandibular, Dor Facial, Mastigação, Deglutição, Terapêutica, Terapia Miofuncional e Fonoaudiologia. Na primeira etapa, dois revisores fizeram a triagem independente dos estudos, por meio da leitura dos títulos e resumos. Na segunda etapa, os revisores leram, independentemente, os documentos pré-selecionados na íntegra. Em caso de divergência, um terceiro pesquisador foi consultado. Resultados as 11 publicações incluídas foram publicadas entre 2000 e 2018. As estratégias mais utilizadas foram o treino da mastigação bilateral simultânea, seguido da mastigação bilateral alternada. Na deglutição, foi proposto aumento do tempo mastigatório para reduzir o alimento em partículas menores e lubrificar melhor o bolo alimentar e treinos com apoio superior de língua. Conclusão o treinamento funcional demonstrou efetividade na reabilitação dos pacientes, embora não siga uma padronização e não seja realizado de forma isolada. Os estudos encontrados apresentam baixo nível de evidência. Considera-se fundamental a realização de estudos mais abrangentes e padronizados, como ensaios clínicos randomizados.

ABSTRACT Purpose To identify and synthesize evidence on strategies used to train chewing and swallowing in individuals with temporomandibular disorder and orofacial pain. Research strategy Scoping review conducted by search in MEDLINE, LILACS, BBO, IBECS, BINACIS, CUMED, SOF, DeCS, Index Psi, LIPECS, and ColecionaSUS (via VHL), Scopus, CINAHL, Embase, Web of Science, Cochrane, and the grey literature: Brazilian Digital Theses and Dissertations Library (BDTD), OpenGrey, and Google Scholar. Selection criteria Quantitative or qualitative studies, with no restriction on time or language of publication, with the following descriptors or keywords: Temporomandibular Joint; Temporomandibular Joint Dysfunction Syndrome; Temporomandibular Joint Disorders; Facial Pain; chewing (Mastication); swallowing (Deglutition); Therapeutics; Myofunctional Therapy; Speech, Language and Hearing Sciences. In the first stage, two reviewers independently screened the studies by title and abstract reading. In the second stage, the reviewers independently read the preselected documents in full text. In case of divergences, a third researcher was consulted. Results The 11 documents included in the review were published between 2000 and 2018. The mostly used training strategies were simultaneous bilateral mastication/chewing, followed by alternating bilateral mastication. In swallowing, increased mastication time was proposed to break food into smaller bits and better lubricate the bolus; training with upper tongue support was also indicated. Conclusion Functional training proved to be effective in rehabilitation, although it was not standardized or performed alone. The studies had low levels of evidence. It is essential to conduct more encompassing and standardized studies, such as randomized clinical trials.

Facial Pain/therapy , Temporomandibular Joint Dysfunction Syndrome/therapy , Myofunctional Therapy , Deglutition , Mastication
Braz. dent. sci ; 25(2): 1-6, 2022. ilus, tab
Article in English | LILACS, BBO | ID: biblio-1363723


Objective: The aim this research was assess the level of satisfaction of patients undergoing bichectomy and its repercussions. Material and Methods: A cross-sectional and qualitative study, under protocol number 20707519.5.0000.5207, was carried out by applying a questionnaire to patients undergoing bichectomy, which made it possible to assess complaints, degree of postoperative satisfaction, satisfaction of family members, time required to perceive results, complications and adverse effects, intensity of postoperative pain, and possibility of being submitted to a new intervention. Results: The sample consisted of 30 patients, among them, 82% sought surgery for aesthetic reasons. Regarding the degree of satisfaction, the majority (70%) were very satisfied, followed by 13.3% who were satisfied, 10% considered normal, 3.3% were dissatisfied and 3.3% very dissatisfied. Regarding the opinion of friends and family, the majority were very satisfied with the result. The adverse effects found were mild, no permanent injury happened, and the pain was mild in the most majority of the sample. Conclusion: Thus, the most majority of patients were satisfied with the results, as well as their family and friends. The results were more evident between the second and third months. No major or permanent damage was observed, suggesting that it is a safe technique when performed well.(AU)

Objetivo: Avaliar o nível de satisfação dos pacientes submetidos à bichectomia, bem como correlacionar os resultados com algumas características clínicas. Material e Métodos: Foi realizado um estudo transversal e qualitativo, sob protocolo número 20707519.5.0000.5207, através da aplicação de um questionário a pacientes submetidos à bichectomia, o qual foi possível avaliar as queixas, o grau de satisfação pós-operatório, a satisfação dos familiares, o tempo para percepção dos resultados, as complicações e efeitos adversos, intensidade da dor pós operatória, e a possibilidade de ser submetido a nova intervenção. Além disso, as características demográficas da amostra (como sexo e idade) também foi registrada na ficha de avaliação. Resultados: A amostra foi composta por 30 pacientes, e desses, 82% buscaram a cirurgia por motivos estéticos. Sobre o grau de satisfação, a maioria (70%) ficou muito satisfeitos, seguidos por 13,3% que ficaram satisfeitos, 10% consideraram normal, 3,3% insatisfeitos e 3,3% muito insatisfeitos. Sobre a opinião dos amigos e familiares, a maioria ficou muito satisfeitos com o resultado. Os efeitos adversos encontrados foram leves, nenhuma lesão permanente foi encontrada, e a dor foi discreta na grande maioria da amostra. Com base na possibilidade de submeter-se a uma nova cirurgia, 70% ficaram satisfeitos e não fariam novamente. Conclusão: A grande maioria dos pacientes demonstrou-se satisfeitos com os resultados, bem como seus familiares e amigos. Os resultados foram mais evidentes entre o segundo e terceiro mês. Não foi observado qualquer dano importante ou permanente, sugerindo ser uma técnica segura quando bem executada. (AU)

Humans , Adipose Tissue , Patient Satisfaction , Esthetics, Dental , Mastication
Ciênc. Saúde Colet. (Impr.) ; 26(supl.3): 5261-5272, Oct. 2021. tab
Article in English, Portuguese | LILACS | ID: biblio-1345775


Abstract This article aims to assess whether alterations of oral functions (AOF) are associated with malocclusion (MO)'s type and severity. Cross-sectional study of a representative sample of 332 adolescents aged 12 years in São Luís-MA, Northeastern Brazil. MO criteria included Angle's classification, Dental Aesthetic Index, and other morphological problems. The AOF were evaluated by breathing, phonation, chewing, and swallowing. Odds ratios (OR) and 95% confidence intervals (95%CI) were calculated using logistic and multinomial regression analyses (α=5%). Mouth breathing was associated with defined (OR=3.84; 95%CI=1.45-10.12), disabling (OR=4.34; 95%CI=1.99-9.49), and class III (OR=4.15; 95%CI=1.19-14.54) MO. Phonation problems were associated with defined (OR=2.01; 95%CI=1.02-4.39), disabling (OR=3.04; 95%CI=1.55-5.96), and Class II (OR=2.02; 95%CI=1.28-3.18) MO. Chewing disorders were associated with posterior crossbite (PCB) (OR=2.32; 95%CI=1.12-4.82). Swallowing disorders were associated with Class III MO (OR=5.66; 95%CI=1.35-23.71), PCB (OR=6.13; 95%CI=2.76-13.62), and posterior open bite (OR=4.53; 95%CI=1.72-8.92). Breathing and phonation alterations are associated with MO in anterior arch segments, while chewing and swallowing disorders, in the posterior segments.

Resumo O objetivo deste artigo é avaliar se alterações das funções orais (AFO) estão associadas ao tipo e gravidade da maloclusão (MO). Estudo transversal com amostra representativa de 332 adolescentes de 12 anos em São Luís-MA, Nordeste do Brasil. Critérios de MO incluíram Classificação de Angle, Índice de Estética Dental e outros problemas morfológicos. As AFO foram avaliadas por respiração, fonação, mastigação e deglutição. Odds ratios (OR) e intervalos de confiança de 95% (IC95%) foram calculados em análises de regressão logística e multinomial (α=5%). Respiração oral foi associada com MO definida (OR=3,84; IC95%=1,45-10,12), incapacitante (OR=4,34; IC95%=1,99-9,49) e classe III (OR=4,15; IC95%=1,19-14,54). Problemas de fonação foram associados às MO definidas (OR=2,01; IC95%=1,02-4,39), incapacitantes (OR=3,04; IC95%=1,55-5,96) e Classe II (OR=2,02; IC95%=1,28-3,18). Alterações na mastigação foram associadas à mordida cruzada posterior (MCP) (OR=2,32; IC95%=1,12-4,82). Deglutição atípica foi associada à MO Classe III (OR=5,66; IC95%=1,35-23,71), MCP (OR=6,13; IC95%=2,76-13,62) e mordida aberta posterior (OR=4,53; IC95%=1,72-8,92). Alterações de respiração e fonação estão associadas às MO nos segmentos anteriores do arco, enquanto as de mastigação e deglutição, nos segmentos posteriores.

Humans , Adolescent , Malocclusion/epidemiology , Prevalence , Cross-Sectional Studies , Deglutition , Mastication
Arq. bras. med. vet. zootec. (Online) ; 73(4): 909-915, Jul.-Aug. 2021. ilus
Article in English | LILACS, VETINDEX | ID: biblio-1285276


In the last decades in the State of Mato Grosso do Sul - Brazil, the reduction in the preservation of areas due to the degradation of the biome and destruction of the natural environment has caused animals, mainly in the order of non-human primates, to come closer to towns and highways, increasing the number of accidents and in some cases, deaths. New surgical techniques have been developed that favor these species as explained in this report. The howler monkey patient was traumatized in the facial region damaging important vital structures such as facial muscle groups responsible for swallowing food, chewing, breathing, defense, and communication (vocalization and mimicry), in addition to the cartilaginous nasal structures. However, reconstructive facial surgical techniques, used on humans, showed satisfactory results from an anatomical, functional, and aesthetic point of view in howler monkey, with acceptance of the animal with a safe postoperative period for a full recovery of the primate patient.(AU)

Nas últimas décadas, no estado do Mato Grosso do Sul - Brasil, a redução de áreas preservadas pela degradação de biomas e pela destruição de habitat naturais tem favorecido a aproximação de animais - muitos desses, primatas não humanos - em cidades e rodovias, aumentando o número de acidentes e, em alguns casos, de mortes. Novas técnicas cirúrgicas têm sido desenvolvidas, favorecendo essas espécies, como reportado neste trabalho. O paciente macaco bugio foi traumatizado em região facial, envolvendo importantes estruturas vitais, como grupos musculares faciais responsáveis pela apreensão alimentar, mastigação, respiração, defesa e comunicação (vocalização e mímicas), além das estruturas cartilaginosas nasais. No entanto, técnicas cirúrgicas reconstrutivas em face aplicadas e descritas em humanos apresentaram resultados satisfatórios dos pontos de vista anatômico, fisiológico e visual nos macacos bugio, com aceitação deles diante do estresse, com pós-operatório seguro, resultando na reabilitação do paciente primata.(AU)

Animals , Deglutition , Alouatta caraya/surgery , Mastication , Primates/surgery , Wounds and Injuries/veterinary , Accidents , Oral Surgical Procedures/veterinary , Plastic Surgery Procedures/veterinary
Rev. colomb. anestesiol ; 49(2): e500, Apr.-June 2021. graf
Article in English | COLNAL, LILACS | ID: biblio-1251502


Abstract Introduction Foreign body aspiration (FBA) is a potentially fatal paediatric emergency. Our objective was to highlight the importance of a multidisciplinary approach to difficult/doubtful diagnosis. Case report 34-month-old girl referred for urgent rigid bronchoscopy after suspected metallic blade ingestion (found chewing on it). She had a previous recurrent history of wheezing. The physical examination revealed face/lip wounds, traces of powder on her teeth but no breathing difficulty. The plain X-Ray revealed radiopaque images of the upper pulmonary field and gastric chamber. In the absence of FBA clinical signs but considering a previous history of bronchial hyperresponsiveness, a direct digital radiographic study was performed. There were no images compatible with foreign bodies: the results were interpreted as artefacts and no bronchoscopy was performed. Conclusions A careful pre-anaesthetic evaluation, a high level of suspicion and excellent multidisciplinary communication led to the recognition of false radiologic findings. A conservative approach was followed and invasive procedures in a remote location, with high anaesthetic risk for the paediatric population were avoided.

Resumen Introducción La aspiración de cuerpo extraño (ACE) es una emergencia pediátrica potencialmente fatal. La intención del presente artículo es resaltar la importancia de un abordaje multidisciplinario en caso de un diagnóstico difícil/dudoso. Reporte de caso Se trata de una paciente de 4 meses de edad remitida para broncoscopia rígida de urgencia, luego de la sospecha de ingestión de una hojilla metálica (se encontró a la bebé mordiéndola). La paciente tenía antecedentes de sibilancia. Al examen físico se encontraron heridas en la cara y los labios, rastros de polvo en los dientes, pero no había dificultad respiratoria. El examen de rayos-x mostraba imágenes radio opacas en el cuadrante superior derecho del pulmón y en la cámara gástrica. En virtud de la ausencia de signos clínicos de ACE en una paciente con antecedentes de hiperresponsividad bronquial, se realizó un estudio radiográfico digital. No hubo imágenes compatibles con cuerpos extraños: los resultados se interpretaron como artefactos y no se realizó la broncoscopia. Conclusiones Un cuidadoso examen pre-anestesia, el alto grado de sospecha y una excelente comunicación multidisciplinaria, permitieron el reconocimiento de hallazgos radiológicos falsos. Se siguió un abordaje conservador, evitando así procedimientos invasivos en lugares remotos con alto grado de riesgo para la población pediátrica.

Humans , Male , Infant , Respiration , Respiratory Sounds , Eating , Emergencies , Foreign Bodies , Wounds and Injuries , X-Rays , Bronchoscopy , Risk , Artifacts , Absenteeism , Lung , Mastication
Int. j. morphol ; 39(3): 935-940, jun. 2021. ilus, tab
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1385402


RESUMEN: Diversos estudios reportan que el tipo de alimento influye directamente en los patrones cinemáticos de la masticación. El objetivo de este estudio fue analizar y comparar los ciclos masticatorios de participantes adultos y completamente dentados durante la masticación de alimentos de diferente textura y dureza (maní y zanahoria) utilizando articulografía electromagnética 3D. Se evaluaron 11 participantes sanos (5 hombres; 6 mujeres), de 31,9 ± 5,2 años de edad. Mediante articulografía electromagnética 3D, se registró la masticación de dos alimentos de prueba (maní y zanahoria). Los datos de movimiento mandibular fueron procesados con MATLAB® y obteniendo diferentes parámetros-frecuencia masticatoria en ciclos por segundo, velocidad de descenso y ascenso mandibular, área de las proyecciones de cada ciclo masticatorio en los tres planos del espacio-que fueron comparados según tipo de alimento y género de los participantes. Se encontraron diferencias estadísticamente significativas entre las áreas de los ciclos masticatorios en el plano horizontal según tipo de alimento, siendo mayor para la masticación de zanahoria (P=,003). Así mismo, se detectaron diferencias estadísticamente significativas entre las áreas sagitales de los ciclos entre hombres y mujeres, siendo mayor en mujeres (P=,042). Nuestros resultados concuerdan con otros estudios que afirman que la textura del alimento influye en las características cinemáticas de los ciclos masticatorios.

SUMMARY: Several studies report that the type of food directly influences the kinematic patterns of mastication. The aim of this study was to analyze and compare the chewing cycles of adult and fully dentate participants during the mastication of foods of different texture and hardness (peanuts and carrots) using 3D electromagnetic articulography. Eleven healthy participants (5 men; 6 women), 31.9 ± 5.2 years old, were evaluated. By means of 3D electromagnetic articulography, the mastication of two test foods (peanuts and carrots) was recorded. The data associated to mandibular movement were processed with MATLAB® obtaining different parameters-masticatory frequency in cycles per second, mandibular descent and ascent rate, area of the projections of each masticatory cycle in the three planes of space-which were compared according to type of food and sex of the participants. Statistically significant differences were found between the areas of the masticatory cycles in the horizontal plane according to type of food, being greater for carrots (P=.003). Likewise, statistically significant differences were detected between the sagittal areas of the cycles between men and women, being greater in women (P=.042). Our results agree with other studies that affirm that the texture of the food influences the kinematic characteristics of the masticatory cycles.

Humans , Male , Female , Adult , Hardness , Mastication/physiology , Biomechanical Phenomena , Imaging, Three-Dimensional , Electromagnetic Phenomena
Distúrb. comun ; 33(2): 204-212, jun. 2021. ilus
Article in Portuguese | LILACS | ID: biblio-1400829


Introdução: A Paralisia Cerebral pode acarretar alterações em qualquer uma das fases da deglutição, causando uma disfagia neurogênica. No entanto, desordem neurológica e deficiência visual associada é um tema pouco estudado. A criança com a ausência do canal visual, geralmente tem pouca noção na estrutura do espaço e até mesmo em relação à sua estrutura corporal e organizacional. É sabido que a Paralisia Cerebral discorre atrasos no padrão mastigatório e da deglutição, mas questiona-se se a deficiência visual pode interferir ou não neste desempenho. Objetivo: O propósito deste estudo foi analisar as funções de mastigação e o tempo de deglutição em criança com paralisia cerebral e deficiência visual associada. Método: Esta pesquisa é de natureza exploratória e descritiva, desenvolvida por meio de um estudo de caso clínico de uma criança com paralisia cerebral e deficiência visual associada. Três consistências de alimento foram examinadas: líquido (suco), pastosa (iogurte) e sólido (pão), sendo cronometrado o tempo gasto para deglutir cada uma delas, durante o horário normal de alimentação. Resultados: os resultados mostraram que a criança com Paralisia Cerebral e Deficiência Visual apresenta dificuldades na função de mastigação e leva mais tempo para deglutir nas consistências sólida e líquida. Conclusão: A deficiência visual associada à paralisia cerebral pode acentuar na dificuldade das funções de mastigação e deglutição.

Introduction: Cerebral Palsy can cause changes in any of the phases of swallowing, causing neurogenic dysphagia. However, neurological disorder and associated visual impairment is a poorly studied topic. The child with the absence of the visual channel, generally has little idea of the structure of the space and even of its body and organizational structure. It is known that Cerebral Palsy has delays in chewing and swallowing patterns, but it is questioned whether visual impairment can interfere or not in this performance. Objective: The purpose of this study was to analyze chewing functions and swallowing time in children with cerebral palsy and associated visual impairment. Method: This research is exploratory and descriptive in nature, developed through a clinical case study of a child with cerebral palsy and associated visual impairment. Three food consistencies were examined: liquid (juice), pasty (yogurt) and solid (bread), with the time spent swallowing each of them during the normal feeding time being timed. Results: the results showed that the child with Cerebral Palsy and Visually Impaired presents difficulties in chewing function and takes more time to swallow in solid and liquid consistencies. Conclusion: Visual impairment associated with cerebral palsy may accentuate the difficulty in chewing and swallowing functions.

Introducción: La parálisis cerebral puede provocar cambios en cualquiera de las fases de la deglución, provocando disfagia neurogénica. Sin embargo, el trastorno neurológico y la discapacidad visual asociada es un tema poco estudiado. El niño con ausencia del canal visual, generalmente tiene poca idea de la estructura del espacio e incluso de su cuerpo y estructura organizativa. Se sabe que la parálisis cerebral tiene retrasos en los patrones de masticación y deglución, pero se cuestiona si la discapacidad visual puede interferir o no en este desempeño. Objetivo: El propósito de este estudio fue analizar las funciones de masticación y el tiempo de deglución en niños con parálisis cerebral y discapacidad visual asociada. Método: Esta investigación es de naturaleza exploratoria y descriptiva, desarrollada a través de un estudio de caso clínico de un niño con parálisis cerebral y discapacidad visual asociada. Se examinaron tres consistencias de alimentos: líquido (jugo), pastoso (yogur) y sólido (pan), y se pasó el tiempo de deglución de cada uno de ellos durante el tiempo normal de alimentación. Resultados: los resultados mostraron que el niño con parálisis cerebral y deficiencia visual tiene dificultades en la función de masticación y toma más tiempo para tragar en forma sólida y líquida. Conclusión: la discapacidad visual asociada con la parálisis cerebral puede acentuar la dificultad en las funciones de masticación y deglución.

Humans , Female , Child, Preschool , Deglutition Disorders/etiology , Cerebral Palsy/complications , Vision Disorders/complications , Deglutition/physiology , Mastication/physiology
Rev. Nutr. (Online) ; 34: e190201, 2021. tab, graf
Article in English | LILACS | ID: biblio-1155459


ABSTRACT Studies have shown that changes in mastication are related to overweight in children and adolescents as these changes influence the increase in food consumption. The objective of this article was to characterize, through a systematic review, the mastication in children and adolescents with overweight or obesity. For this, two independent authors performed a systematic review of the electronic databases: Medical Literature Analysis and Retrieval System Online, Scopus, Cumulative Index to Nursing and Allied Health, Web of Science and Latin American and Caribbean Literature in Health Sciences. Masticatory characteristics were considered as primary outcomes; the methods of analyzing mastication, the physical characteristics of the foods/materials used in the analyses and the fasting time were considered as secondary outcomes. This review was prepared in accordance with the items of the preferential reports for systematic analysis and meta-analysis. The systematic review protocol was submitted to the International Prospective Registry of Systematic Reviews. Nine articles were included in this review. The reviewed articles suggest that children and/or adolescents with overweight or obese present masticatory damages because they have worse masticatory performance and altered orofacial myofunctional characteristics.

RESUMO Estudos têm demonstrado que alterações na mastigação estão relacionadas ao excesso de peso em crianças e adolescentes, o que pode levar ao aumento do consumo alimentar. O objetivo deste artigo foi caracterizar, através de uma revisão sistemática, a mastigação em crianças e adolescentes com sobrepeso ou obesidade. Para isso, dois autores independentes realizaram uma revisão sistemática nas bases de dados eletrônicas Medical Literature Analysis and Retrieval System Online, Scopus, Cumulative Index to Nursing and Allied Health, Web of Science e Literatura Latino-Americana e do Caribe em Ciências da Saúde. As características mastigatórias foram consideradas desfechos primários; os métodos de análise da mastigação, as características físicas dos alimentos/materiais utilizados nas análises e o tempo de jejum foram classificados como desfechos secundários. Esta revisão foi elaborada de acordo com os itens dos relatórios preferenciais para análise sistemática e metanálises. O protocolo de revisão sistemática foi submetido ao Registro Internacional Prospectivo de Revisões Sistemáticas. Nove artigos foram incluídos nesta revisão. Os resultados dos artigos revisados sugerem que crianças e/ou adolescentes com sobrepeso ou obesidade apresentam danos mastigatórios, pois possuem pior performance mastigatória e características miofuncionais orofaciais alteradas.

Humans , Male , Female , Child, Preschool , Child , Adolescent , Adult , Stomatognathic System/physiology , Child , Adolescent , Overweight , Mastication/physiology , Obesity
Article in English | LILACS, BBO | ID: biblio-1180859


ABSTRACT Objective: To evaluate the improvement in masticatory performances two weeks after posterior implant restoration. Material and Methods: Nine patients with missing first and second molars were included in the study. Masticatory performances were evaluated using subjective and objective methods utilizing color-changeable chewing gum and the visual analog scale (VAS) assessment. The subjects were asked to chew the color-changeable chewing gums before and two weeks after the posterior implant restoration. Their expectations regarding aesthetics and function were verified on the VAS before implant placement. Additionally, the VAS was used for the posttreatment completion rating two weeks after the implant restoration. Results: Significant differences in masticatory performance were noted at baseline (before implant posterior restoration) and two weeks after implant restoration (p<0.05). The posttreatment aesthetic and functional expectations ratings significantly exceeded the expectations (p<0.05). Conclusion: Masticatory performances were improved two weeks after implant restoration. In addition, the significant posttreatment ratings of the patients exceeded their initial expectations. In particular, patients with poor masticatory functions demonstrated significant improvements and satisfaction following implant restoration compared to those with good mastication. These findings indicate that a posterior implant restoration can increase the masticatory performance.

Humans , Male , Female , Adult , Middle Aged , Chewing Gum/microbiology , Patient Satisfaction , Dental Implantation/instrumentation , Molar/anatomy & histology , Statistics, Nonparametric , Visual Analog Scale , Indonesia/epidemiology , Mastication
Article in Spanish | LILACS, COLNAL | ID: biblio-1354587


El objetivo del presente estudio fue presentar una revisión sistemática de la literatura relacionada con los estudios que aborden los métodos de evaluación de la masticación y sus características principales. Como estrategia de investigación se realizó en las bases de datos PubMed, Web Of Science, Medline, SciELO y Lilacs desde 2006 al 2020. Como criterios de selección se escogieron todos los estudios disponibles, sin restricción de idioma; de los últimos 14 años; cuyos participantes no presentaron alteraciones neurológicas ni psiquiátricas. Fueron analizados a partir de su relación con el objeto del presente estudio. Las palabras clave utilizadas en la búsqueda de los artículos fueron identificados en los Descriptores en Ciencias de la Salud (DEDS) siendo las siguientes: "Evaluation", "Mastication", "Masticatory Muscles", "Masseter Muscle" y "Temporal Muscle". Utilizando también OR y AND como operadores lógicos. Se encontró 1311 estudios en las bases de datos investigadas, después de la revisión fueron eliminados 1278 y elegidos 33 artículos; y considerándose sólo 21 artículos según criterios de selección y objetivo. Todos los artículos revisados obtuvieron un alto grado de evidencia (nivel I) luego de realizar una evaluación crítica de la evidencia científica, determinando que todos los artículos evaluados fueron catalogados como estudios clínicos aleatorizados y con diseños experimentales. Siendo excluidos los estudios longitudinales, con individuos con patologías. Se concluye que el método que se utiliza mayormente es la evaluación clínica fonoaudiológica, mediante observación y palpación de musculatura orofacial, seguido de electromiografía de superficie, electrognatografía y la escala analógica visual para la saciedad. Las características observadas fueron, número de ciclos de masticación, velocidad de la masticación, porcentaje de actividad muscular eléctrica, fuerza muscular, tipo de masticación según el lado de preferencia de masticación, eficiencia masticatoria y tipología facial.

The objective of the present study was to present a systematic review of the literature related to studies that address chewing evaluation methods and their main characteristics. As a research strategy, it was carried out in the PubMed, Web Of Science, Medline, SciELO and Lilacs databases from 2006 to 2020. All available studies were chosen as selection criteria, without language restriction; of the last 14 years; whose participants did not present neurological or psychiatric alterations. They were analyzed based on their relationship with the object of the present study. The keywords used in the search for the articles were identified in the Health Sciences Descriptors (DEDS) being the following: "Evaluation", "Mastication", "Masticatory Muscles", "Masseter Muscle" and "Temporal Muscle". Also using OR and AND as logical operators. 1311 studies were found in the investigated databases, after the review 1278 were eliminated and 33 articles were chosen; and considering only 21 articles according to selection and objective criteria. All the articles reviewed obtained a high degree of evidence (level I) after making a critical evaluation of the scientific evidence, determining that all the articles evaluated were classified as randomized clinical studies with experimental designs. Longitudinal studies with individuals with pathologies being excluded. It is concluded that the method most used is the speech therapy clinical evaluation, by observation and palpation of the orofacial muscles, followed by surface electromyography, electrognatography and the visual analog scale for satiety. The observed characteristics were, number of chewing cycles, chewing speed, percentage of electrical muscle activity, muscle strength, chewing type according to chewing preference side, chewing efficiency and facial typology.

Research Design , Mastication , Masticatory Muscles , Palpation , Observation , Efficiency , Electromyography , Evaluation Studies as Topic , Visual Analog Scale , Literature , Methods
Article in English | LILACS, BBO | ID: biblio-1346680


ABSTRACT Objective: To evaluate the influence of tooth loss and the use of removable dentures on chewing function and nutritional status of institutionalized elders. Material and Methods: Cross-sectional study with 155 elders from seven long-stay institutions in João Pessoa, Brazil. The participants were classified according to the presence of reminiscent teeth and use of dentures in four levels: toothless, without denture (1); toothless with a complete denture (2); partial toothless without denture (3) and partial toothless with a partial denture (4). Nutritional status was assessed using the Mini-Nutritional Assessment (MNA) instrument and the Body Mass Index (BMI). Swallowing threshold was used for the assessment of masticatory function, using a portion of roasted peanuts (3.7 g). Comparisons among groups were performed using Kruskal-Wallis test with Bonferroni adjustment, considering p<0.05. Results: MNA (p=0.702) and BMI (p=0.884) were not modified in relation to the presence of teeth and denture use. Toothless individuals without dentures had a lower swallowing threshold (p<0.001), whilst partial toothless with dentures had better masticatory function (p>0.05). Conclusion: The presence of reminiscent teeth and the use of dentures do not influence the nutritional status of the elders but interfere with the masticatory function. Prosthetic rehabilitation is desirable for complete toothless individuals.

Humans , Male , Female , Aged , Aged, 80 and over , Brazil , Nutritional Status , Denture, Complete , Denture, Partial, Removable , Homes for the Aged , Mastication/physiology , Aged , Body Mass Index , Cross-Sectional Studies/methods , Mouth, Edentulous , Statistics, Nonparametric
São José de Campos; s.n; 2021. 76 p. ilus, graf, tab.
Thesis in Portuguese | LILACS, BBO | ID: biblio-1362101


A mastigação pode ser realizada de maneira bilateral, porém a maioria das pessoas possui um lado de preferência mastigatório (LPM). O objetivo do estudo foi verificar, por meio de avaliação em imagens por tomografia computadorizada de feixe cônico (TCFC), se o LPM influencia em parâmetros anatômicos das ATM de indivíduos com disfunção temporomandibular (DTM) de origem articular. Para este estudo, 106 exames (212 ATM) de TCFC foram analisados, sendo 56 exames (112 ATM) de voluntários sem o diagnóstico de DTM (grupo controle - GC) e 50 exames (100 ATM) de indivíduos com diagnóstico de DTM de origem articular (grupo experimental - GE). As variáveis analisadas nos exames foram: o formato axial e o formato paracoronal das cabeças das mandíbulas (côndilos), o grau de translação e o grau de rotação articulares, o volume das cabeças das mandíbulas, a altura e a inclinação dos tubérculos articulares. Para estudar os fatores lado, LPM e grupo foram construídos, para cada variável analisada, quatro modelos de Equações de Estimação Generalizadas (EEG) e o nível de significância adotado foi de 5%. Apenas uma interação significante foi observada entre grupo e LPM para explicar o formato axial da cabeça da mandíbula (p-valor < 0,001). No entanto, dois tipos do formato axial foram excluídos do GE por não serem observados no LPM esquerdo, e após essa exclusão, o LPM não modificou a possibilidade de o paciente apresentar qualquer um dos outros três formatos axiais (p-valor > 0,05). Dessa forma, os resultados evidenciaram que o LPM não exerceu influência sobre os parâmetros estruturais e dinâmicos das ATM de indivíduos com DTM de origem articular. No entanto, estudos complementares são necessários para que nossos resultados possam ser replicados em amostras maiores.

Chewing can be done bilaterally, but most people have a chewing side preference (CSP). The objective of the study was to verify, through image evaluation using cone beam computed tomography (CBCT), if the CSP influences anatomical parameters of the TMJ of individuals with temporomandibular disorder (TMD) of joint origin. For this study, 106 exams (212 TMJ) of CBCT were analyzed, being 56 exams (112 TMJ) of volunteers without the diagnosis of TMD (control group - CG) and 50 exams (100 TMJ) of individuals diagnosed with TMD of origin articular (experimental group - EG). The variables analyzed in the exams were: the axial format and paracoronal format of the heads of the mandible (condyles), the degree of translation and the degree of articular rotation, the volume of the heads of the mandibles, the height and inclination of the articular tubercles. To study the side, CSP and group factors, four models of Generalized Estimating Equations (GEE) were built for each variable analyzed and the significance level adopted was 5%. Only one significant interaction was observed between group and CSP to explain the axial format of the head of mandible (p-value < 0.001). However, two types of axial format were excluded from the EG because they were not observed in the left CSP, and after this exclusion, the CSP did not change the possibility that the patient had any of the other three axial format (p-value > 0.05 ). Thus, the results showed that the CSP did not influence the structural and dynamic parameters of the TMJ of individuals with TMD of joint origin. However, further studies are needed so that our results can be replicated in larger samples.

Humans , Temporomandibular Joint , Temporomandibular Joint Disorders , Cone-Beam Computed Tomography , Mastication