Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 1.655
Filter
1.
Rev. Odontol. Araçatuba (Online) ; 43(1): 57-61, jan.-abr. 2022. ilus
Article in Portuguese | LILACS, BBO | ID: biblio-1361720

ABSTRACT

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)


Subject(s)
Humans , Male , Child , Phonation , Cuspid , Anodontia , Molar , Dental Occlusion , Esthetics, Dental , Mastication , Anodontia/diagnosis , Anodontia/therapy
2.
HU rev ; 48: 1-6, 2022.
Article in English | LILACS | ID: biblio-1370799

ABSTRACT

Introduction: The opening of the contact point can happen after orthodontic closure of the site of dental extraction and opened interproximal contacts are considered potential factors for periodontal diseases. Objective: To evaluate the condition of the alveolar bone crest of the interdental site between canines and upper premolars with or without contact points in individuals submitted to orthodontics associated with the extraction of the first premolars. Material and Methods: This cross-sectional observational study selected upper canines and premolars of individuals undergoing orthodontic treatment without extractions (12 hemiarches ­ control group), or with extraction of the upper first premolars and whose canines and second premolars had interproximal contact (11 hemiarches ­ group 1) or diastema (15 hemiarches ­ group 2). The height and the presence of lamina dura in the interproximal bone crest of the distal surfaces of canines and mesial surfaces of premolars were evaluated. Results: Groups 1 and 2 demonstrated the higher and smallest prevailing of the presence of lamina dura, respectively. The control group presented the bone crest positioned more crownly in relation to the others groups. Experimental groups did not present significant differences to the height of bone crest. Conclusion: The orthodontic allocation of teeth to extraction sites was associated with the significant reduction of the height of the marginal bone crest, regardless of the presence or absence of contact point between the teeth. The lack of contact point resulted in a minor prevalence of the continuity of the lamina dura of the alveolar bone crest in these regions.


Introdução: A abertura do ponto de contato pode ocorrer após o fechamento ortodôntico do sítio de extração dentária e os contatos interproximais abertos são considerados fatores potenciais para as doenças periodontais. Objetivo: Avaliar a condição da crista óssea alveolar do espaço interdentário entre caninos e pré-molares superiores com ou sem pontos de contato em indivíduos submetidos a tratamento ortodôntico associado à exodontia dos primeiros pré-molares. Material e Métodos: Este estudo transversal observacional selecionou caninos e pré-molares superiores de indivíduos submetidos a tratamento ortodôntico sem extrações (12 hemiarcos ­ grupo controle), ou com exodontia dos primeiros pré-molares superiores e cujos caninos e segundos pré-molares tiveram contato interproximal (11 hemiarcos ­ grupo 1) ou diastemas (15 hemiarcos ­ grupo 2). Foram avaliadas a altura e a presença da lâmina dura na crista óssea interproximal das superfícies distais dos caninos e mesiais dos pré-molares. Resultados: Os grupos 1 e 2 demonstraram a maior e a menor prevalência da presença de lâmina dura, respectivamente. O grupo controle apresentou a crista óssea posicionada mais coronalmente em relação aos demais grupos. Entre os grupos experimentais, não houve diferença significativa para a altura da crista óssea. Conclusão: Neste estudo preliminar, a movimentação ortodôntica dos dentes para os locais de exodontia foi associada à redução significativa da altura da crista óssea marginal, independentemente da presença ou ausência de ponto de contato entre os dentes. A falta de ponto de contato resultou em menor prevalência de continuidade da lâmina dura da crista óssea alveolar nessas regiões.


Subject(s)
Periodontics , Orthodontics , Periodontal Diseases , Surgery, Oral , Tooth Extraction , Bicuspid , Bone and Bones , Orthodontic Space Closure , Dental Occlusion
3.
Rev. Ciênc. Plur ; 7(3): 1-15, set. 2021. tab
Article in Portuguese | LILACS, BBO | ID: biblio-1290801

ABSTRACT

Introdução:A maloclusão é considerada a segunda doença oral mais comum em crianças e jovens adultos. É importante saber identificar estas alterações de forma a permitir um adequado desenvolvimento da oclusão.O diagnóstico de um desenvolvimento anormal na dentição decídua é relevante para a prevenção e quando necessáriouma intervenção precoce. Objetivo:O objetivo deste estudo transversal foi avaliar a prevalênciade maloclusão em crianças com dentição decídua e relacionar com diferentes parâmetros.Metodologia:Observaram-se 300 crianças de ambos os sexos, com idades compreendidas entre os 3 e os 6 anos. A recolha de dados foi realizada a partir do exame clínico comkits de observação(espelho bucal básico descartável,sonda descartável, babador,luvas e sacos descartáveis), sob luz natural e na cadeira escolar, no Agrupamento de Escolas de Porto de Mós, Distrito Sanitário de Leiria. Analisaram-se as seguintes características: Tipo de arco de Baume, espaços primatas, diastemas, apinhamento, relação distal dos segundos molares decíduos, relação canina, sobremordida e sobressaliência, mordida anterior e posterior.Resultados:A prevalência de maloclusão registradafoi de 67,7%, verificando-se ser mais baixa aos seis anos, sem apresentar diferenças significativas em ambos os sexos. A sobressaliência foi a maloclusão mais prevalente (42,7%) nas crianças observadas, seguida da mordida aberta anterior (23,3%). Registrou-seumaelevada prevalência de maloclusão nas crianças com arco de Baume tipo II, sem diastemas ou espaços primatas, com apinhamento, degrau distal, classe II canina ou desvio da linha média para a direita.Conclusões:Verificou-se existir uma elevada prevalência de maloclusão nas crianças do agrupamento de escolas do Concelhode Porto de Mós, estando relacionada com diferentes parâmetros oclusais (AU).


Introduction:Malocclusion is considered a second mostcommon oral disease in children and young adults. It is important to know how to identify these changes in order to allow proper development of the occlusion.The diagnosis of anabnormal development in primary dentition is relevant for prevention and when necessary, early intervention.Objective:The aim of this cross sectional study was to evaluate the prevalence of malocclusion in children with deciduous dentition and relate this prevalence with sex, age and with different occlusal parameters.Methodology:300 children of both sexes, aged between 3 and 6 years were observed. Data collection was carried out from the clinical examination using observation kits, in schools, in the Group of schools of Porto de Mós, Health District of Leiria. The following characteristics were analyzed: Baume arc Type, spaces, diastemas, crowding, the deciduous second molars distal relation, canine relationship, Overbite and overjet, anterior and posterior bite.Results:The recorded prevalence of malocclusion was 67.7%, was lower at six years old, without any differences in both sexes. The overjet was the most prevalent malocclusion (42.7%) in the observed children. There was a high prevalence of malocclusion in children with type II Baume arch, without spaces or primate spaces, with distal step, canine class II or with the middle line shifted to the right.Conclusions:There there was a high prevalence of malocclusion in children of the schools in the municipality of Porto de Mós, and is related to the different occlusal parameters (AU).


Introducción: La maloclusión se considera la segunda enfermedad bucal más común en niños y adultos jóvenes. Es importanteidentificar estos cambios para llograr un adecuado desarrollo de la oclusión. El diagnóstico precoz deldesarrollo anormal en la dentición temporal es relevante para la prevención y cuando sea necesario una intervención temprana. Objetivo: El objetivo de este estudio transversal fue evaluar la prevalencia de maloclusión en niñoscon dentición temporal y relacionarla con diferentes parámetros. Metodología: Fueran observados 300 niños de ambos sexos, con edadesentre los 3 y los 6 años. La recogida de datos del examen clínico se realizó mediante kits de observación, en un entorno escolar, en el Grupo Escolar dePorto de Mós, Distrito Sanitariode Leiria. Se analizaron las siguientes características: tipo de arco de Baume, espaciosprimates, diastemas, apiñamientos, relación distal de los segundos molares deciduos, relación canina, sobremordida horizontal y vertical, mordida anterior y posterior. Resultados: La prevalencia de maloclusión registrada fue de 67,7%, la cual resultó ser menor a los seis años, sin mostrar diferencias significativas en ambos sexos. El overjet fue la maloclusión más prevalente (42,7%) en los niños observados, seguida de la mordida abierta anterior (23,3%). Hubo una alta prevalencia de maloclusión en niños con arco de Baume tipo II, sin diastemas ni espacios de primates, con apiñamiento, paso distal, canino clase II o desviación de la línea media hacia la derecha.Conclusiones: Se encontró que hayuna alta prevalencia de maloclusión en niños dela comunidad escolar del municipio de Porto de Mós, y que se relaciona,con diferentes parámetros oclusales (AU).


Subject(s)
Humans , Male , Female , Child, Preschool , Child , Portugal/epidemiology , Tooth, Deciduous , Child , Malocclusion/prevention & control , Chi-Square Distribution , Epidemiology, Descriptive , Cross-Sectional Studies/methods , Statistics, Nonparametric , Dental Occlusion
4.
Rev. Asoc. Odontol. Argent ; 109(2): 107-118, ago. 2021. ilus, tab
Article in Spanish | LILACS | ID: biblio-1348414

ABSTRACT

Objetivos: Realizar una revisión de la literatura sobre métodos de rehabilitación mínimamente invasivos, y presentar un caso clínico acerca de un nuevo procedimiento denominado sistematización adhesiva temporaria (SAT), destinado a pacientes que presentan pérdida de sustancia dentaria y que se caracteriza como un abordaje terapéutico predecible para transferir el proyecto rehabilitador (encerado) a la boca del paciente mediante 3 pasos bien definidos y con objetivos específicos. Caso clínico: Un paciente adulto joven de sexo masculino con desgastes severos por bruxismo es rehabilitado temporalmente con resinas compuestas (SAT) para devolver la anatomía perdida en forma adhesiva y conservadora, siguiendo un protocolo de abordaje terapéutico predecible denominado EGOP (estéticamente guiado y oclusalmente protegido). Este procedimiento, que es considerado muchas veces de transición previo a las restauraciones finales, nos permite evaluar la estética, la oclusión y mejorar la comunicación entre el equipo de trabajo para poder realizar el cambio por restauraciones cerámicas en forma gradual. En aquellos pacientes que necesitan rehabilitaciones totales producto del desgaste dentario severo, la SAT puede ser una herramienta que facilite al odontólogo la posibilidad de restablecer los patrones oclusales y estéticos perdidos sin la necesidad de realizar desgastes dentarios y provisionales como se hacía clásicamente (AU)


Aims: To carry out a literature review on minimally-invasive rehabilitation methods and to present a clinical case on a new procedure called Temporary Adhesive Systemization (TAS), intended for patients that show a considerable loss of dental substance, characterized by a predictable therapeutic approach to transfer the rehabilitation diagnosis wax-up through 3 well defined steps and with specific objectives to the patient´s dentition. Clinical case: A young adult male patient with severe wear due to bruxism is temporarily rehabilitated with composite resins (TAS) to return the lost anatomy in a conservative way, following a predictable therapeutic approach protocol called EGOP (aesthetically guided and occlusally protected). This procedure, which is often considered transitional prior to final restorations, allows us to evaluate aesthetics, occlusion, improve communication between the working team and to be able to gradually change for ceramic restorations. In patients that need full rehabilitation due to severe dental erosion, TAS is a predictable procedure that helps the dentist to re-establish the loss of aesthetical and occlusal patterns, without the need of preparing the teeth for the classic provisional restorations (AU)


Subject(s)
Humans , Male , Middle Aged , Tooth Erosion/therapy , Bruxism/rehabilitation , Dental Restoration, Temporary , Esthetics, Dental , Tooth Wear/therapy , Conservative Treatment , Ceramics , Dental Bonding , Lithium Compounds , Composite Resins , Dental Occlusion
5.
Rev. cient. odontol ; 9(2): e060, abr.-jun. 2021. ilus, tab
Article in Spanish | LIPECS, LILACS, LIPECS | ID: biblio-1254599

ABSTRACT

Objetivo: Comparar el ángulo de la guía condílea sagital obtenida del registro radiográfico y clínico en pacientes dentados. Materiales y métodos: La muestra estuvo conformada por un grupo único de estudio de 32 pacientes, en el que se evaluó la radiografía lateral estricta y los registros posicionales: en relación céntrica, registro protrusivo a 5 mm en lateralidad derecha y registro protrusivo a 5 mm en lateralidad izquierda. Con el registro posicional del arco facial se articuló el modelo superior, con el registro posicional en relación céntrica se articuló el modelo inferior, con los registros laterales protrusivos de los lados derecho e izquierdo se obtuvo la medida del ángulo de la guía condílea sagital para la programación del articulador semiajustable. El plan estadístico en la presente investigación utilizó el programa SPSS versión 24, la normalidad fue evaluada usando el test de Shapiro-Wilk, también se realizaron las pruebas de T de Student y correlación de Pearson. Resultados: Se determinó estadísticamente que el género y la edad influyen en la medida del ángulo de la guía condílea sagital. El método radiográfico presentó un ángulo de guía condílea de 35,69 ±5,18 y con el método clínico fue 35,69 ± 5,16 (p > 0,05). La prueba de correlación de Pearson sí mostró una correlación importante entre ambos métodos r = 0,948, p < 0,001. Conclusiones: Existe alta correlación en las medidas obtenidas del ángulo de la guía condílea sagital con los registros radiográficos y clínicos; esta concordancia permitiría reemplazar un método por el otro. (AU)


Objective: To compare the angle of the sagittal condylar guidance obtained from the radiographic and clinical records of dentate patients. Materials and Methods: The sample consisted of 32 patients in whom strict lateral radiography and positional records were performed: in centric relation, protrusive recording 5 mm in right laterality and protrusive recording 5 mm in left laterality. With the positional registration of the facebow, the upper model was articulated, while the lower model was articulated with the positional registration in centric relation, and with the protrusive lateral registrations on the right and left side the condylar guidance was obtained for programming the semi-adjustable articulator. Statistics were performed with the SPSS program version 24 in Spanish. Normality was evaluated using the Shapiro-Wilk test, for data with normal distribution, and the Student's T test and Pearson's correlation were performed in descriptive statistics. Results: The statistical analyses showed that gender and age influence the angle measurement of the sagittal condylar guide. The radiographic method presented a condylar guide angle of 35.69 ± 5.18, being 35.69 ± 5.16 with the clinical method (p> 0.05). Pearson's correlation test showed an important correlation between the two methods (r = 0.948, p <0.001). Conclusions: There is a high correlation in the measurements obtained from the angle of the sagittal condylar guide and the radiographic and clinical records, indicating that both methods are effective. (AU)


Subject(s)
Humans , Male , Female , Adult , Young Adult , Radiography, Panoramic , Cephalometry , Dental Occlusion , Mandibular Condyle , Epidemiology, Descriptive , Cross-Sectional Studies , Retrospective Studies , Observational Studies as Topic
6.
Rev. Círc. Argent. Odontol ; 79(229): 22-25, abr. 2021. ilus
Article in Spanish | LILACS | ID: biblio-1253795

ABSTRACT

Desde la introducción de los teléfonos móviles en los años 80, el crecimiento de su uso ha sido continuo y con una tasa de crecimiento cada vez mayor. Este crecimiento ha generado preocupación a nivel mundial respecto de los efectos que sobre la salud provocan. Uno de ellos tiene que ver con los cambios adaptativos que surgen a nivel de la columna cervical, por la acción de inclinar la cabeza hacia adelante repetidas veces, con el objeto de visualizar la pantalla. Se ha descrito una estrecha relación entre la columna cervical y el completo cráneomandibular, por lo que se espera que los componentes de ambos sistemas tengan la capacidad potencial de influirse de manera recíproca. Se ha demostrado que distintas actitudes posturales derivan en características diversas de oclusión, por lo que una modificación de la posición craneocervical afectaría tanto a la oclusión dentaria de manera particular, como de forma general a la biomecánica mandibular. El propósito de este trabajo es informar sobre los efectos que las posturas inadecuadas que adopta la columna cervical al utilizar teléfonos móviles, pueden provocar a nivel del sistema estomatognático (AU)


Subject(s)
Humans , Male , Female , Posture , Posture/physiology , Stomatognathic System , Cervical Vertebrae/physiopathology , Neck Pain/etiology , Dental Occlusion
7.
Article in English | WPRIM | ID: wpr-879963

ABSTRACT

To evaluate the therapeutic effect of using micro-implant anchorage (MIA) to rotate the functional occlusal plane (FOP) counterclockwise. Forty skeletal class Ⅱ high-angle patients who had completed orthodontic treatment were enrolled, including 20 patients treated with MIA orthodontic system (MIA group) and the other 20 patients treated with traditional sliding straight wire appliance (control group). Cephalometric measurements on the lateral cranial radiographs before and after treatment were performed, all acquired data were statistically analyzed with SPSS 26.0. At the end of treatment, MIA group obtained better effect of FOP and mandibular plane counter-clockwise rotation than the control group. In the MIA group, the average change of FOP-frankfort horizontal plane (FH), FOP-SN and mandibular plane angle (MP-FH) angle was -4.5(-7.3, -3.7)°, (3.3)° and -1.7(-3.0, -0.9)°, respectively. In the control group, the average change of FOP-FH, FOP-SN and MP-FH angle was -0.1(-4.1, 3.0)°, (-0.1±5.1)° and -0.4(-2.4, 0.7)°, respectively. There was significant difference between the change of the two groups (all <0.05). Compared with the traditional sliding straight wire appliance, counterclockwise rotation of FOP can be more effectively reversed by using MIA orthodontic system, and the MP-FH can be reduced as well.


Subject(s)
Cephalometry , Dental Occlusion , Humans , Malocclusion, Angle Class II/therapy , Mandible , Maxilla , Treatment Outcome
8.
Pesqui. bras. odontopediatria clín. integr ; 21(supl.1): e0030, 2021. tab, graf
Article in English | LILACS, BBO | ID: biblio-1346687

ABSTRACT

ABSTRACT Objective: To obtain reference values for tip, torque and in-out from digital models of Italian and Mozambican subjects in ideal occlusion using a repeatable and validated method and to compare these measurements with previously reported values. Material and Methods: Dental parameters were acquired from digital models of each subject, categorized to one of two groups: Italians (23 males, 27 females; mean age 28.3 years, ±5.7 years) and Mozambicans (14 males, 15 females; mean age, 23.4 years, ±5.9), using VAM software. All subjects had ideal occlusion, permanent dentition and no previous orthodontic treatment, fillings or prostheses. After normality of data was assumed (p<0.05), a paired t-test was performed to detect any statistical differences between the two groups (p<0.05). Then, classical inference (t-test and power analysis) was used to compare our data to those reported by other authors. Results: Mozambicans' incisors were more proclined, while their upper molars appeared to be more prominent regarding Italians'. Italians shown greater tip values, especially at the upper first premolars and lower first molars. In-out values were comparable between the two groups, except for the upper molars (more prominent in Mozambicans) and lower first molar (more prominent in Italians). Unlike other reports, upper second molars displayed negative tip in our samples. Conclusion: Pre-adjusted appliances with standard prescription should not be expected to guarantee optimal outcomes. Prescriptions specific for ethnicities are recommended and reference values should be reconsidered.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Orthodontic Appliances , Dentition, Permanent , Torque , Dental Occlusion , Italy , Mozambique , Orthodontics , Statistics, Nonparametric
9.
Pesqui. bras. odontopediatria clín. integr ; 21(supl.1): e0032, 2021. tab, graf
Article in English | LILACS, BBO | ID: biblio-1351223

ABSTRACT

ABSTRACT Objective: To investigate the effectiveness of Suresmile® lingual therapy on torque, tip, and rotations measures through digital evaluation of planning and post-treatment digital models. Material and Methods: A sample of 12 Caucasian adult patients (4 men; mean age 30.6 years ± 3.9 and 8 women; mean age 31.4 years ± 4.5) treated with the Suresmile® lingual orthodontic technique was retrospectively selected, regardless of the type of malocclusion. Digital planning was performed with Suresmile® software, while lingual therapy was accomplished with interactive self-ligating lingual brackets and customized Suresmile® arches. First, digital models of planning and post-treatment digital models were compared using VAM software (and the discrepancies were analyzed through MANOVA and four multivariate. Then, Tukey and Bonferroni's post-hoc tests are performed. Results: The accuracy average values are 60.11 ± 27.67% for torque, 53.52 ± 27.37% for tip and 59.19 ± 26.42% for rotation, while for inaccuracy values are 2.72° ± 2.23° for torque, 2.98° ± 2.16°for tip and 3.58° ± 3.29° for rotation. No significant differences have been recorded evaluating different sectors of both arches. Conclusion: This retrospective preliminary study highlight how overcorrections, especially in the Suresmile lingual technique, should be performed during orthodontic planning. Moreover, the study gets bases for further, more structured future studies that should involve larger and more homogeneous samples.


Subject(s)
Humans , Female , Adult , Orthodontic Brackets , Dental Occlusion , Esthetics, Dental , Orthodontic Appliances, Fixed , Malocclusion , Pilot Projects , Multivariate Analysis , Retrospective Studies , Statistics, Nonparametric , Italy
10.
Article in English | LILACS, BBO | ID: biblio-1346670

ABSTRACT

ABSTRACT Objective: To propose a classification of patients by occlusal condition and its apparent validation. Material and Methods: This cross-sectional analytical study was divided into two phases. In the first, a trained examiner divided the patients into four groups according to the proposed classification of this design: Type 1 patient - completely dentate individuals; Type 2 - partially edentulous individuals with occlusal stability; Type 3 - partially edentulous individuals with no occlusal stability; Type 4 - completely edentulous individuals. In this phase, 122 patients were analyzed with an instrument developed for this experiment. Results: All patients in the sample of this research were classified in some division of the proposed instrument. In the second phase, the apparent validation of the classification was conducted by three judges, who obtained an excellent agreement with the allocation of patients in one of the types according to the indication of the first examiner (Kappa = 85%). Conclusion: It is evident that the classification presents reliability, ease of visualization, good conditions for interprofessional communication, and it can be used in dental clinical practice to assist in the study and integrated planning of clinical cases.


Subject(s)
Humans , Orthodontics , Oral Health , Classification/methods , Dental Occlusion , Mandible/surgery , Patient Care Planning , Brazil/epidemiology , Cross-Sectional Studies/methods , Data Interpretation, Statistical
11.
Rev. odontol. UNESP (Online) ; 50: e20210034, 2021. tab
Article in English | LILACS, BBO | ID: biblio-1347769

ABSTRACT

Introduction: Open bite can generate relevant psychosocial impact in the daily life of the patient, both from the aesthetic and functional point of view. Objective The aim of this study was to estimate the prevalence and factors associated with the anterior open bite in children in the first school year in a municipality in southern Brazil. Material and method A cross-sectional study was carried out with six-year-old schoolchildren in Palhoça/SC. Interviews were conducted with mothers to gather socioeconomic and non-nutritive sucking habits information. Children oral clinical examinations were carried out in schools. Multivariate analyses were performed using Poisson regression with a robust estimator. The study involved 655 children, 50.5% being female. Result The prevalence of anterior open bite was 14.1% (95% CI 11.5; 16.7). Girls exhibited a lower prevalence [PR= 0.96 (95% CI 0.94; 0.99) p= 0.024] and those children who used a pacifier exhibited a higher prevalence of anterior open bite [PR= 1.04 (95% CI 1.01; 1.07) p= 0.003]. Conclusion The prevalence was 14.1% and that it was associated with gender and the use of pacifier, in a statistically significant and independent way.


Introdução: A mordida aberta pode gerar relevante impacto psicossocial no cotidiano do paciente, tanto do ponto de vista estético quanto funcional. Objetivo Estimar a prevalência e os fatores associados à mordida aberta anterior em crianças do primeiro ano escolar de um município do sul do Brasil. Material e método Estudo transversal constituído por escolares de seis anos de idade de Palhoça/SC. Foram realizadas entrevistas com as mães para obtenção de informações socioeconômicas e de hábitos de sucção não nutritivos. Exames clínicos bucais das crianças foram realizados nas escolas. Análises multivariadas foram realizadas por meio de regressão de Poisson com estimador robusto. Resultado O estudo envolveu 655 crianças sendo 50,5% do sexo feminino. A prevalência de mordida aberta anterior foi de 14,1% (IC 95% 11,5; 16,7). Meninas apresentaram prevalência menor [RP= 0,96 (IC 95% 0,94; 0,99) p= 0,024] e aqueles que utilizaram chupeta apresentaram uma maior prevalência [RP= 1,04 (IC 95% 1,01; 1,07) p= 0,003]. Conclusão A prevalência foi de 14,1% associada de forma estatisticamente significativa e independente com sexo e utilização de chupeta.


Subject(s)
Humans , Child , Child , Open Bite , Dental Occlusion , Pacifiers
12.
Arq. odontol ; 57: 253-259, jan.-dez. 2021. ilus
Article in English | LILACS, BBO | ID: biblio-1352601

ABSTRACT

Case report: This article presents the case of an 11-year-old patient who sought orthodontic treatment, complaining of crooked teeth. In anamnesis, an emotional and physical dependence was reported regarding the act of breastfeeding. Considerations on the diagnosis, psychological implications, and clinical approach in this rare case were addressed. An orthodontic treatment and myofunctional therapy were performed to resolve the occlusal and functional aspects of the patient. Psychological therapy for the child and her mother was required to handle emotional sequelae. Conclusion: Multidisciplinary treatment was prescribed. Dentists should be aware of this need in cases of patients with special characteristics for treatment beyond oral problems. In orthodontics, this may be the difference between effective treatment outcomes or not.


Relato de caso: Este artigo apresenta o caso de uma paciente de 11 anos que procurou tratamento ortodôntico com queixa de "dentes tortos". Na anamnese, foi relatada dependência emocional e física da criança em relação ao ato de amamentar. Considerações sobre diagnóstico, implicações psicológicas, abordagem clínica neste raro caso foram abordadas. Foi realizado tratamento ortodôntico e terapia miofuncional para resolução dos aspectos oclusais e funcionais do paciente. Um acompanhamento psicológico para crianças e sua mãe foi necessária para abordar sequelas emocionais inerentes. Conclusão: Um tratamento multiprofissional foi instituído e o dentista deve estar atento a essa necessidade nos casos de pacientes com características especiais, visando uma abordagem além dos problemas bucais. Na Ortodontia, essa pode ser a diferença entre os resultados eficazes do tratamento ou não.


Subject(s)
Humans , Female , Child , Orthodontics, Corrective , Breast Feeding/adverse effects , Deglutition Disorders/therapy , Myofunctional Therapy , Malocclusion/psychology , Dental Care for Children , Dental Occlusion , Mother-Child Relations
13.
J. appl. oral sci ; 29: e20200266, 2021. tab, graf
Article in English | LILACS | ID: biblio-1180799

ABSTRACT

Abstract Objectives We analyzed the effects of the Er:YAG laser used with different parameters on dentinal tubule (DT) occlusion, intrapulpal temperature and pulp tissue morphology in order to determine the optimal parameters for treating dentin hypersensitivity. Methodology Dentin specimens prepared from 36 extracted human third molars were randomized into six groups according to the treatment method (n=6 each): control (A); Gluma desensitizer (B); and Er:YAG laser treatment at 0.5 W , 167 J/cm2 (50 mJ, 10 Hz) (C), 1 W , 334 J/cm2 (50 mJ, 20 Hz) (D), 2 W , 668 J/cm2 (100 mJ, 20 Hz) (E), and 4 W and 1336 J/cm2 (200 mJ, 20 Hz) (F). Treatment-induced morphological changes of the dentin surfaces were assessed using scanning electron microscopy (SEM) to find parameters showing optimal dentin tubule occluding efficacy. To further verify the safety of these parameters (0.5 W, 167 J/cm2), intrapulpal temperature changes were recorded during laser irradiation, and morphological alterations of the dental pulp tissue were observed with an upright microscope. Results Er:YAG laser irradiation at 0.5 W (167 J/cm2) were found to be superior in DT occlusion, with an exposure rate significantly lower than those in the other groups (P<0.05). Intrapulpal temperature changes induced by Er:YAG laser irradiation at 0.5 W (167 J/cm2) with (G) and without (H) water and air cooling were demonstrated to be below the threshold. Also, no significant morphological alterations of the pulp and odontoblasts were observed after irradiation. Conclusion Therefore, 0.5 W (167 J/cm2) is a suitable parameter for Er:YAG laser to occlude DTs, and it is safe to the pulp tissue.


Subject(s)
Humans , Lasers, Solid-State/therapeutic use , Microscopy, Electron, Scanning , Dental Occlusion , Dentin
14.
Braz. dent. sci ; 24(2): 1-7, 2021. tab, ilus
Article in English | LILACS, BBO | ID: biblio-1177576

ABSTRACT

Purpose: To evaluate the effect of fibromucosa height on the stress distribution and displacement of mandibular total prostheses during posterior unilateral load, posterior bilateral load and anterior guidance using the finite element analysis (FEA). Material and methods: 3D virtual models were made to simulate the stress generated during different mandibular movements in a total prosthesis. The contacts were simulated according to the physiology, being considered perfectly bonded between cortical and medullar bones; and between cortical bone and mucosa. Non-linear frictional contact was used for the total prosthesis base and fibromucosa, allowing the prosthesis to slide over the tissue. The cortical bone base was fixed and the 100 N load was applied as unilateral load, posterior bilateral load and anterior guidance simulation. The required results were for maximum principal stress (MPa), microstrain (mm/mm) and total displacement (mm). The numerical results were converted into colorimetric maps and arranged according to corresponding scales. Results: The stress generated in all situations was directly proportional to the fibromucosa height. The maximum principal stress results demonstrated greater magnitude for anterior guidance, posterior unilateral and posterior bilateral, respectively. Only posterior unilateral load demonstrated an increase in bone microstrain, regardless of the fibromucosa height. Prosthesis displacement was lower under posterior bilateral loading. Conclusion: Posterior bilateral loading is indicated for total prosthesis because it allows lower prosthesis displacement, lower stress concentration at the base of the prosthesis and less bone microstrain. (AU)


Objetivo: Avaliar o efeito da altura da fibromucosa na distribuição de tensões e deslocamento das próteses totais mandibulares durante a carga unilateral posterior, carga bilateral posterior e orientação anterior usando a análise por elementos finitos (FEA). Material e métodos: Modelos virtuais 3D foram confeccionados para simular a tensão gerada durante diferentes movimentos mandibulares em uma prótese total. Os contatos foram simulados de acordo com a fisiologia, sendo considerados perfeitamente unidos entre os ossos corticais e medulares; e entre o osso cortical e a mucosa. O contato friccional não linear foi utilizado entre a base total da prótese e a fibromucosa, permitindo que a prótese deslizasse sobre o tecido. A base do osso cortical foi fixada e a carga de 100 N aplicada como carga unilateral, carga bilateral posterior e simulação de guia incisiva anterior. Os resultados foram calculados em tensão máxima principal (MPa), microdeformação (mm/mm) e deslocamento total (mm). Os resultados numéricos foram convertidos em mapas colorimétricos e organizados de acordo com as escalas correspondentes. Resultados: A tensão gerada em todas as situações foi diretamente proporcional à altura da fibromucosa. Os resultados de tensão máxima principal demonstraram maior magnitude durante a carga anterior, posterior unilateral e posterior bilateral, respectivamente. Apenas a carga unilateral posterior demonstrou aumento da microdeformação óssea, independente da altura da fibromucosa. O deslocamento da prótese foi menor sob carga bilateral posterior. Conclusão: A carga bilateral posterior é indicada para prótese total, pois permite menor deslocamento da prótese, menor concentração de tensões na base da prótese e menor microdeformação óssea (AU)


Subject(s)
Finite Element Analysis , Dental Occlusion , Denture, Complete
15.
Rev. Ateneo Argent. Odontol ; 64(1): 83-90, 2021.
Article in Spanish | LILACS | ID: biblio-1253061

ABSTRACT

La lactancia materna juega un papel fundamental en el niño recién nacido (desde una mirada interdisciplinar, en cuanto a lo nutricional, lo psicoemocional, e incluso a nivel de las estructuras craneofaciales) tanto en el crecimiento como en el desarrollo. La leche materna es el primer alimento natural de los niños, proporciona toda la energía y los nutrientes que necesitan durante sus primeros meses de vida y sigue aportándoles, al menos, la mitad de sus necesidades nutricionales durante la segunda mitad del primer año y hasta un tercio durante el segundo año de vida. Este trabajo tiene como objetivos una revisión bibliográfica sobre los beneficios que tiene la leche materna para el/la bebe recién nacido y la importancia que tiene el amamantamiento del/la bebe a nivel psicológico, médico y, sobre todo, odontológico (AU)


Breastfeeding plays a fundamental role in the newborn child, both in growth and development from an interdisciplinary perspective, in the nutritional, psycho-emotional, in addition to the level of the craniofacial structures. Breast milk is the first natural food for children, provides all the energy and nutrients they need during their first months of life and continues to provide at least half of their nutritional needs during the second half of the first year and up to a third during the second year of life. This work aims at a bibliographic review on the benefits of breast milk in the newborn baby and the importance of breastfeeding the baby on a psychological, medical and especially dental level (AU)


Subject(s)
Humans , Male , Female , Infant, Newborn , Infant , Breast Feeding , Infant, Newborn , Infant Nutrition , Milk, Human , Dental Occlusion , Growth and Development , Mother-Child Relations/psychology , Nutritional Requirements
16.
Rev. cient. odontol ; 8(2): e026, mayo-ago. 2020.
Article in Spanish | LIPECS, LILACS, LIPECS | ID: biblio-1119392

ABSTRACT

Para el rehabilitador oral, resulta fundamental determinar con precisión la orientación del plano oclusal en pacientes con distintas alteraciones, como desgastes severos, edentulismo parcial, total y sus consecuencias. Es importante que este sea lo más cercano posible a la posición que ocupaba en dentición natural, ya que influye principalmente en la función oclusal, de los músculos masticatorios, en la articulación temporomandibular, en la fonética y en la estética. Además, la correcta determinación constituye la base de la planificación, por ser el plano de referencia estético y funcional; determina la guía anterior, los patrones de movimiento mandibular, la eficiencia masticatoria y la dimensión vertical. Por ello, el propósito de este estudio es evaluar los métodos más utilizados y confiables para la determinación del plano oclusal, mediante una revisión de la literatura científica actual. A partir de lo investigado, se concluye que el plano oclusal debe ubicarse en la posición que ocupaban los dientes naturales, y su determinación incluye una secuencia clínica, que se inicia por el sector anterior en reposo y sonrisa, y continúa con el sector posterior. No existe un método absoluto. Es importante el análisis individual de cada paciente para decidir qué métodos serán los más indicados. Existen métodos que incluyen el análisis cefalométrico o tridimensional, lo que aporta una mayor precisión en la planificación. (AU)


In oral rehabilitation, it is fundamental to accurately determine the orientation of the occlusal plane in patients with different occlusal alterations such as severe wear, partial and total edentulism and their consequences. It is important that the occlusal plane be as close as possible to the position occupied in natural dentition, since it mainly affects occlusal function, the masticatory muscles, the temporomandibular joint, phonetics and aesthetics. In addition, correct determination is the basis of treatment planning, as it is the aesthetic and functional reference plane, and determines the previous guide, mandibular movement patterns, masticatory efficiency and vertical dimension. Thus, the purpose of this study was to provide a review of the current scientific literature on the most commonly used and reliable methods for determining the occlusal plane. According to the literature, the occlusal plane should be located in the position occupied by the natural teeth, and its determination is made following a clinical sequence starting with the anterior sector at rest and while smiling, continuing with the posterior sector. There is no method of choice. However, individual analysis of each patient is important to determine the most adequate method. Methods including cephalometric and/or three-dimensional analysis provide greater precision for treatment planning. (AU)


Subject(s)
Humans , Cephalometry , Dental Occlusion , Malocclusion
17.
Ortodoncia ; 84(167): 80-93, jun. 2020. ilus, tab
Article in Spanish | LILACS | ID: biblio-1147798

ABSTRACT

Para adecuarnos a los objetivos estéticos de la ortodoncia actual, y con el fin de lograr una planificación más eficiente, hemos propuesto una modificación al objetivo visual de tratamiento (VTO) tradicional de Ricketts. En este método, sugerimos comenzar la planificación ortodóncica evaluando la estética de los tejidos blandos y la sonrisa del paciente, de forma individualizada para cada caso según su arquetipo facial, tomando como punto de partida la posición deseada del incisivo superior, dando importancia a las posibilidades de modificación del plano oclusal, de la altura del tercio inferior de la cara y de la proyección del mentón a partir de la autorrotación mandibular. Durante este proceso se utilizan, además de la telerradiografía de perfil, las fotos del paciente de frente y de perfil para planear cambios de forma visual, a través del efecto morphing, todo esto facilitado por el uso de un software de diseño(AU)


For adapting us to the aesthetics objectives of today's orthodontics, and in order to achieve a more efficient planning, we have proposed a modification to the traditional Ricketts' visual treatment objective - VTO. In this method, we suggest starting orthodontic planning by evaluating the aesthetics of soft tissues and the smile of the pacient, in a customized way for each case according to facial archetype, taking as a starting point the desired position of the upper incisor, giving importance to the possibilities for occlusal plane changing, to the height of the lower third of the face and to the projection of the chin from the mandibular autorotation. During this process, in addition to profile teleradiography, full-face and profile pictures of the patient are used to plan visual changes through morphing, all of this was facilitated by the use of design software(AU)


Subject(s)
Humans , Female , Adult , Middle Aged , Smiling , Computer-Aided Design , Photography, Dental , Dental Occlusion , Esthetics, Dental , Incisor , Maxilla , Cephalometry , Lip
18.
Rev. Ateneo Argent. Odontol ; 62(1): 13-23, jun. 2020. graf
Article in Spanish | LILACS | ID: biblio-1148125

ABSTRACT

El presente es un trabajo de investigación bibliográfica que busca establecer la posibilidad de utilizar las cefalometrías como elementos de diagnóstico pronóstico y elaboración de prótesis. Centra su objeto de estudio en encontrar y clasificar los factores morfológicos y funcionales que varían con los biotipos craneofaciales y que son de interés en la prostodoncia. La metodología empleada fue la revisión de la literatura histórica hasta la actualidad en la que se relacionan temas de prostodoncia a los biotipos craneofaciales. Si bien solo dos autores relacionaron la prostodoncia con los biotipos cráneo faciales, sí se encontraron varios temas de interés asociados directamente a la prostodoncia. Se clasificaron en temas de oclusión: Curva de Spee, plano de oclusión, movimientos mandibulares, dimensión vertical oclusiva y de especio libre interoclusal. Tema de maloclusiones. Tema de fuerza muscular. Tema variaciones morfológicas de procesos alveolares, corticales ósea y de la forma dentaría. Encontrándose para cada uno de ellos alguna correlación positiva con los distintos tipos faciales. De este estudio, se concluye que es necesario sistematizar el estudio de los conocimientos que puede aportar la cefalometría como una importante herramienta de diagnóstico al prostodoncista a partir de haberse encontrado variaciones muy importantes en los aspectos mencionados que hacen al interés de la rehabilitación prostodóncica (AU)


This Work is a bibliographic research that seeks to establish the use of cephalometries as elements of diagnosis prognostic and prosthesis elaboration. Its focus is to find and classify morphological and functional factors that vary with facial types which are of interest in prosthodontics. This was a review of the historical literature to date, in which prosthodontics are related to facial types. Although only two authors related prosthodontics to facial ypes, they did find several topics of interest directly associated with prosthodontics. They were classified into occlusion themes: Spee curve, occlusion plane, mandibular movements, occlusive vertical dimension and interocclusal free space. Malocclusion issue. Muscle strength theme. Morphological variations of alveolar processes, cortical bone and dental morphology. They found some positive correlation with the different facial types for each of them. From this study, it is concluded that it is necessary to systematize the study of cephalometries because they can provide to be an important diagnostic tool to the prosthodontist because there were found very important variations in the mentioned aspects that are of interest in prosthodontic rehabilitation (AU)


Subject(s)
Humans , Bite Force , Biotypology , Dental Prosthesis , Dental Occlusion , Malocclusion , Vertical Dimension , Dental Implants , Cephalometry , Mouth Rehabilitation
19.
Rev. Fac. Odontol. Univ. Antioq ; 32(1): 18-25, June 2020. tab, graf
Article in English | LILACS | ID: biblio-1149597

ABSTRACT

ABSTRACT Introduction: all orthodontic treatments must be safe in terms of temporomandibular joint health. No reports in the recent literature evaluate the association between the use of posterior bite turbos and condylar position changes. The aim of the present study was to evaluate condylar position changes occurring after three-month treatment with posterior bite turbo in patients from the Dental School of the Universidad del Valle. Methods: a sample of 15 hyperdivergent patients was randomly distributed into two groups: Bite Turbo and Control Group. Cone-Beam Computed Tomography (CB-CT) was used to assess the condyle position before the bite turbos bonding to first and second molars, and after three months of use of the appliances. Distances were taken from the CB-CT by a single operator, and the calibration was tested with intraclass correlation (> 0.9). Results: no statistical difference between the position of left and right condyles was detected. However, there was a significant difference in the upper space of the left condyle between the initial and final measurement. Patients reported satisfactory use of the occlusal bite turbo (85.8%) in three months of treatment. Conclusion: contrary to the expected, the simultaneous use of posterior occlusal appliances with balanced mandibular movements for 3 months did not cause significant changes in condylar position. The patients tolerate well the use of occlusal stops. Keywords: orthodontic appliance, cone-beam computed tomography, temporomandibular joint condyle, dental occlusion


RESUMEN Introducción: todos los tratamientos de ortodoncia deben ser seguros con respecto a la salud de las articulaciones temporomandibulares. La literatura reciente no reporta estudios en los que se evalúe la asociación entre el uso de topes de mordida posterior y cambios de posición condilar. El objetivo del presente estudio consistió en evaluar los cambios de posición condilar que se produjeron después de tres meses de tratamiento con tope de mordida posterior en pacientes de la Facultad de Odontología de la Universidad del Valle. Métodos: la muestra de 15 pacientes hiperdivergentes se distribuyó aleatoriamente en dos grupos: Bite Turbo y Grupo control. Se utilizó tomografía computarizada de haz de cono para evaluar la posición del cóndilo antes de la unión de los topes de mordida a los molares primero y segundo, y después de tres meses de uso de los dispositivos. Las distancias fueron tomadas en el tomógrafo por un solo operador, y la calibración se probó con correlación intraclase (> 0.9). Resultados: no se detectó ninguna diferencia estadística entre la posición de los cóndilos izquierdo y derecho. Sin embargo, hubo una diferencia significativa en el espacio superior del cóndilo izquierdo entre la medición inicial y final. Los pacientes notificaron un uso satisfactorio del bite turbo oclusal (85,8%) después de tres meses de tratamiento. Conclusión: contrario a lo que se suponía, el uso simultáneo de aparatos oclusales posteriores con movimientos mandibulares equilibrados durante 3 meses no causó cambios significativos en la posición de los cóndilos. Los pacientes toleran bien el uso de topes oclusales.


Subject(s)
Temporomandibular Joint , Orthodontics , Dental Occlusion
20.
Int. j. odontostomatol. (Print) ; 14(1): 42-47, mar. 2020. tab
Article in Spanish | LILACS | ID: biblio-1056499

ABSTRACT

RESUMEN: El objectivo de este estudio fue describir los valores promedio de oximetría, frecuencia cardíaca y eventos de apnea durante la noche y la actividad de los músculos maseteros y temporales en un grupo de adultos jóvenes con BS. Estudio observacional descriptivo de serie de casos que consideró una muestra 20 jóvenes entre 21 y 25 años diagnosticados con BS mediante polisomnografía. Se describieron las condiciones de actividad de los músculos maseteros y temporales mediante electromiografía y los valores e los signos vitales mediante polisomnografía. El análisis estadístico fue de tipo descriptivo, se aplicaron medidas de tendencia central, frecuencias absolutas y relativas. El promedio de la actividad muscular durante la masticación de los maseteros fue (D: 86) (I: 520). El promedio de la actividad muscular durante la masticación de los temporales fue (D: 340) (I: 510). El promedio en los episodios de hipopnea fue de (28,9). El promedio de oximetría fue (NMOR: 93,5) (MOR: 93,8). El promedio de la tasa cardiaca fue (NMOR: 65,4) (MOR: 66,8) latidos/minuto. El promedio de eventos de bruxismo fue (NREM: 135,4) (REM: 120,2).y el índice (eventos BS/hora) (40,60). Las características de las musculares masticatorias y los signos vitales durante el sueño de los sujetos con BS pueden ayudar al entendimiento y a la toma de decisiones en el tratamiento.


ABSTRACT: The objective of the study was to describe the average oximetry, heart rate, and apnea events values during sleep, and the activity of masseter and temporal muscles in a group of young adults with SB (Sleep Bruxism). This serial case and observational descriptive study comprised of a sample of 20 young people between 21 and 25 years of age, who were diagnosed with SB through a polysomnography test. Electromyography recordings served to describe the activity conditions of masseter and temporal muscles, while polysomnography was used to obtain measurement values and vital signs. A descriptive statistical analysis accounting for measures of central tendency, absolute and relative frequencies was performed. During mastication, the average masseter and temporal muscle activity values registered at (D: 86) (I: 520), and (D: 340) (I: 510) respectively. While, the average value for hypopnea episodes was (28.9), and (NREM: 93.5) (REM: 93.8) for oximetry. The average heart rate exhibited a value of (NREM: 65.4) (REM: 66.8) beats / minute, while the values for bruxism events registered at (NREM: 135.4) (REM: 120.2) with an index value of (SB events / hour) (40.60). Muscles of mastication characteristics, and vital signs during sleep for subjects with SB can aid in understanding and decision making in treatment.


Subject(s)
Humans , Male , Female , Adult , Bruxism , Sleep Bruxism/complications , Sleep Bruxism/diagnosis , Heart Rate/drug effects , Apnea , Oximetry , Epidemiology, Descriptive , Polysomnography , Dental Occlusion , Electromyography , Observational Study , Mastication , Mexico , Muscle Contraction
SELECTION OF CITATIONS
SEARCH DETAIL