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1.
Audiol., Commun. res ; 24: e2050, 2019. tab, graf
Article in Portuguese | LILACS | ID: biblio-1001365

ABSTRACT

RESUMO Objetivo Comparar três métodos de aprendizagem sobre anatomia e fisiologia do sistema miofuncional orofacial, sendo dois interativos (uso de softwares educacionais) e um tradicional, quanto à aprendizagem conceitual de estudantes de graduação em Fonoaudiologia. Métodos Participaram 36 estudantes do segundo ano, alocados randomicamente em grupos: Grupo 1 (G1) - método interativo com jogo computacional 2D (n=12); Grupo 2 (G2) - método interativo com modelo computacional 3D (n=12); Grupo 3 (G3) - método tradicional (textos e figuras 2D) (n=12). Os métodos de aprendizagem foram aplicados durante estudo complementar, por sete semanas, após aula expositiva. Foi realizada uma avaliação de conhecimento antes da aplicação dos métodos de aprendizagem, imediatamente após e seis meses depois da conclusão, e o desempenho dos grupos, nos três momentos, foi comparado. Os dados foram analisados no software SPSS, versão 21 (nível de significância de 5%). Resultados Predominaram sujeitos do gênero feminino, com média de idade de 22,0 (±4,7) anos (F2,33=60,72, p=0,260). Os resultados indicaram que, no G1, apenas o pré-teste diferiu do pós-teste, enquanto no G2 e no G3 o pré-teste diferiu do pós-teste e do pós-teste tardio. Ao verificar a interação entre o desempenho dos grupos e os momentos de avaliação, observou-se que os resultados do GI foram inferiores aos dos demais grupos (F2,22=722,30 p<0,001). Conclusão O uso de modelo computacional 3D foi comparável ao do método tradicional para a aprendizagem conceitual e retenção de conhecimento, em curto e longo prazo, sendo ambos mais eficazes do que o uso de jogo computacional 2D.


ABSTRACT Purpose Compare three learning methods on Anatomy and Physiology of the Orofacial Myofunctional System (OMS): two interactive methods with educational software and one traditional method, regarding the conceptual learning of Speech-Language and Hearing Sciences (SLHS) undergraduate students. Methods Thirty-six students were randomly divided into three groups: Group 1 (G1) - 2D computer game-based method (n=12); Group 2 (G2) - 3D computational model method (n=12); Group 3 (G3) - traditional method (texts and 2D images) (n=12). The learning methods were applied during a complementary study schedule, for seven weeks, after a lecture. Knowledge assessments were conducted prior to the application of the learning methods, immediately after, and six months after completion; the performance of the groups at the three moments was compared. Data were analyzed in SPSS 21 software (p≤0.005). Results Female individuals were predominant, with mean age of 22.0 (±4.7) years (F2.33=60.72; p=0.260). The results show that only the pre-test differed from the short-term test in the G1, whereas the pre-test differed from the short- and the long-term tests in the G2 and G3. Regarding correlation between the performance of the groups and the moments of evaluation, it was observed that the results for the G1 were inferior (F2.22=722.30; p<0.001). Conclusion The 3D computational model was comparable to the traditional method for short- and long-term conceptual learning and knowledge retention, and both were more effective than the 2D computer game.


Subject(s)
Humans , Educational Technology/education , Facial Muscles/anatomy & histology , Facial Muscles/physiology , Games, Experimental , Learning , Students , Computer-Assisted Instruction , Simulation Training
2.
CoDAS ; 26(6): 464-470, Nov-Dec/2014. tab
Article in English | LILACS | ID: lil-732406

ABSTRACT

PURPOSE: To verify myofunctional orofacial characteristics in young adults and to compare data on individuals with and without myofunctional complaints, aiming to identify the main myofunctional problems and differentiating them from characteristics that are common for this population, as well as to list items for myofunctional evaluation in this population. METHODS: Cross-sectional study with 85 adult participants, aged between 19 and 39 years, selected through consecutive sampling at the Department of Speech, Language and Hearing Sciences of Universidade Veiga de Almeida. The participants were divided into two groups: G1 (comprising 50 individuals referred for orofacial myofunctional disorders) and G2 (comprising 35 volunteers without complaints). Descriptive evaluation of craniofacial structures of hard and soft tissues, kinesiology and mandible range of motion and functional patterns of breathing, chewing, and swallowing was applied. Three expert Speech-Language pathologists assessed all participants. Statistical analysis was done using χ2-test, Student's t-test, or Mann-Whitney test. The reliability level was 99%. RESULTS: A predominance of Angle Class I pattern of occlusions for G2 (p<0.0001) was found. G1 showed (p<0.0001) mandible movements with deviations and joint noises, amplitude reduction in lateral and protrusive movements, unilateral chewing, nonexpected muscle contraction, temporomandibular joint noises, swallowing with excessive contraction of the orbicularis oris muscle, loud noise, and residues (p=0.006). CONCLUSION: The main myofunctional orofacial alterations in young adults with complaints refer to changes of the mandibular movements and patterns of chewing or of swallowing, reflecting the main items of the clinical evaluation. Many items of assessment and characterization do not differ between the groups, and these should be analyzed regarding their relevance. .


OBJETIVO: Verificar as características miofuncionais orofaciais em adultos jovens e analisar comparativamente dados de indivíduos com e sem queixas miofuncionais, visando apontar os principais problemas miofuncionais e diferenciando-os de características típicas dessa população, além de elencar os itens de avaliação miofuncional que possam merecer maior atenção para essa população. MÉTODOS: Estudo transversal com 85 participantes adultos, 19 a 39 anos, selecionados por amostra consecutiva no Serviço de Fonoaudiologia da Universidade Veiga de Almeida, divididos em dois grupos - G1: 50 indivíduos encaminhados por queixas miofuncionais orofaciais; G2: 35 indivíduos voluntários sem queixas. Todos foram avaliados por três fonoaudiólogos, especialistas. O exame constou de avaliação clínica descritiva quanto às estruturas craniofaciais de tecidos duros e moles, análise dos movimentos mandibulares, verificação funcional quanto à respiração, mastigação e deglutição. Análise estatística: teste do χ2, teste t de Student ou de Mann-Whitney. Foi adotado nível de confiabilidade de 99%. RESULTADOS: Constatou-se predomínio de oclusão Classe I de Angle para G2 (p<0,0001). G1 apresentou (p<0,0001): movimentos mandibulares com desvios e ruídos articulares, amplitude reduzida nos movimentos de lateralidade e protrusivos, mastigação unilateral, contração muscular não esperada, ruídos articulares, deglutição com contração perioral excessiva, ruído evidente e resíduos (p=0,006). CONCLUSÃO: As principais alterações miofuncionais orofaciais em adultos jovens com queixas referem-se a modificações dos movimentos mandibulares, dos padrões de mastigação ...


Subject(s)
Adult , Female , Humans , Male , Young Adult , Deglutition Disorders/physiopathology , Movement Disorders/physiopathology , Stomatognathic System/physiology , Case-Control Studies , Cross-Sectional Studies , Dental Occlusion , Deglutition/physiology , Facial Muscles/physiology , Mandible/physiopathology , Mastication/physiology , Reproducibility of Results
3.
Braz. j. otorhinolaryngol. (Impr.) ; 78(2): 41-51, mar.-abr. 2012. ilus, tab
Article in Portuguese | LILACS | ID: lil-622842

ABSTRACT

Diferentes métodos criados para a avaliação dos movimentos da musculatura facial variam quanto à subjetividade e confiabilidade. Discute-se a praticidade na utilização na clínica diária ou a precisão para uso em pesquisa científica. OBJETIVO: Obter um padrão de contração dos músculos faciais em indivíduos normais por meio de um método objetivo, o sistema Vicon. MATERIAL E MÉTODO: Em 12 indivíduos, marcadores refletivos foram colocados em pontos de interesse na face. Os movimentos foram capturados por câmeras que enviaram as imagens para um computador. Foram medidos os deslocamentos dos pontos e calculadas as médias e os desvio padrão (DP). RESULTADOS: Ficou demonstrado que, ao sorrir, a variação deverá ser de 6,45 a 12,11 mm, média de 9,28 mm e DP de 2,83; ao enrugar a testa, a variação deverá ser de 6,00 a 13,08 mm, média de 10,57 mm e DP de 2,51; ao movimentar a pálpebra, a variação devera ser de 6,89 a 11,29 mm, média de 9,09 mm e DP de 2,20; ao franzir a testa, a variação deverá ser de 4,26 a 10,85 mm, média de 7,56 mm e DP 3,29. CONCLUSÃO: Foram obtidos os padrões normais de contração dos músculos faciais.


Different methods used to evaluate the movements of the face have many degrees of subjectivity and reliability. The authors discuss the ease of using these methods in clinical practice or their accuracy in scientific research. AIM: To obtain the standard for normal facial muscles movements using an objective method - the Vicon system. MATERIALS AND METHODS: Light reflective markers were placed at points of interest on the face of 12 normal subjects. The movements were captured by cameras that sent the images to a computer. The points' displacements were measured between rest and maximum muscle contraction; and we calculated the means and the standard deviations (SD) were calculated. RESULTS: When smiling, the variation of the oral commissures was between 6.45 and 12.11 mm, mean of 9.28 mm and SD od 2.83; for lifting the eyebrow, it is between 6.0 and 13.08 mm, mean of 10.57 mm and SD of 2.51; for eyelids movement there was a variation of 6.89 and 11.29 mm, with a mean value of 9.09 mm and SD of 2.20; for the movement of wrinkling the forehead, the results showed a variation of 4.16 and 10.85 mm, with a mean value of 7.56 and SD of 3.29. CONCLUSION: The authors obtained normal patterns for facial muscle contraction.


Subject(s)
Humans , Facial Muscles/physiology , Image Processing, Computer-Assisted/methods , Muscle Contraction/physiology , Facial Expression , Facial Paralysis/diagnosis , Facial Paralysis/physiopathology
4.
Article in English | IMSEAR | ID: sea-139913

ABSTRACT

Background and Objectives: In complete denture wearers, the accumulation of food in the buccal vestibule is one of the factors causing discomfort to the patient. This study was conducted to evaluate the effect of mandibular denture buccal flange on food retention and to correlate between varying angulations of buccal flange of mandibular denture on food retention. Materials and Methods: Complete dentures were fabricated and the mandibular complete denture was duplicated. The existing (unduplicated) manually molded and physiologically molded dentures were tested for food retention. Twenty test particles having a diameter of 2±0.2 mm were placed on the middle part of the buccal flange and the subjects were instructed to expel the test particles by performing only functional movements of the buccal musculature. The numbers of residual test particles in the buccal vestibule were counted after 30s. The angulations of the denture buccal flange (duplicated) were measured with an optical bevel protractor and trimmed to 50° and the food retention test was performed. Similar tests were performed at 60°, 70° and 80° angulations. The data were evaluated using the Pearson correlation coefficient, One-way ANOVA test and Wilcoxon signed rank test. Results: The difference between the residual scores of manually molded and physiologically molded denture base was not significant. The difference between the residual scores at different angulations of the buccal flange of the denture was significant. Conclusion: Only the slope of the flange significantly affects the ability of subjects to expel the test particles.


Subject(s)
Acrylic Resins/chemistry , Adult , Aged , Cheek/physiology , Dental Materials/chemistry , Denture Bases , Denture Design , Denture, Complete, Lower , Facial Muscles/physiology , Female , Food , Humans , Male , Middle Aged , Surface Properties
5.
Braz. oral res ; 23(4): 415-423, Oct.-Dec. 2009. tab
Article in English | LILACS | ID: lil-534213

ABSTRACT

The present study aimed at analyzing and comparing longitudinally the EMG (electromyographic activity) of the superior orbicularis oris muscle according to the breathing mode. The sample, 38 adolescents with Angle Class II Division 1 malocclusion with predominantly nose (PNB) or mouth (PMB) breathing, was evaluated at two different periods, with a two-year interval between them. For that purpose, a 16channel electromyography machine was employed, which was properly calibrated in a PC equipped with an analogue-digital converter, with utilization of surface, passive and bipolar electrodes. The RMS data (root mean square) were collected at rest and in 12 movements and normalized according to time and amplitude, by the peak value of EMG, in order to allow comparisons between subjects and between periods. Comparison of the muscle function of PNB and PMB subjects at period 1 (P1), period 2 (P2) and the variation between periods (Ã) did not reveal statistically significant differences between groups (p < 0.05). However, longitudinal evaluation of the muscle function in PNB and PMB subjects demonstrated different evolutions in the percentage of required EMG for accomplishment of the movements investigated. It was possible to conclude that there are differences in the percentage of electric activity of the upper lip with the growth of the subjects according to the breathing mode.


Subject(s)
Adolescent , Child , Female , Humans , Male , Facial Muscles/physiology , Lip/physiology , Malocclusion, Angle Class II/physiopathology , Mouth Breathing/physiopathology , Respiration , Deglutition/physiology , Electromyography , Longitudinal Studies , Mastication/physiology , Statistics, Nonparametric , Time Factors
6.
Rev. bras. otorrinolaringol ; 74(5): 685-690, set.-out. 2008. ilus, tab, graf
Article in English, Portuguese | LILACS | ID: lil-499841

ABSTRACT

A partir do conceito da matriz funcional, surgiu a hipótese de que são os tecidos moles atuando sobre determinada peça óssea que determinam o processo de crescimento facial. A possibilidade de modificar a influência muscular, seja na fase de desenvolvimento facial, seja em pós-operatórios de cirurgia corretiva é de grande importância preventiva e deveria ser mais bem investigada, uma vez que poderia subtrair o número e magnitude destes procedimentos. DESENHO DO ESTUDO: Experimental em coelhos. OBJETIVO: Estimar a relevância da atividade muscular sobre o esqueleto facial, em coelhos de experimentação, durante sua fase de desenvolvimento facial. MATERIAL E MÉTODO: Foram estudados 37 coelhos de 2 meses de idade, divididos em grupo de estudo e grupo controle e seguidos por um período de 4 meses. Os animais do grupo de estudo tiveram seus nervos faciais seccionados no seu ramo cervical unilateralmente. O esqueleto da mesoestrutura facial era retirado para estudo morfométrico por programa de computação gráfica em fotografias digitalizadas realizadas nas peças. Os resultados obtidos sofreram análise estatística comparativa. CONCLUSÃO: Ausência de atividade muscular em uma metade da face produz desvio lateral da mesoestrutura facial para o mesmo lado em coelhos em desenvolvimento.


Based on the functional matrix concept, scientists developed the hypothesis that soft tissue acting on certain bone pieces determines the process of facial growth. The possibility to modify muscle influence in the phase of facial development, or in postoperative of corrective surgery is of great preventive importance and it should be better investigated, since it could reduce the number and impact of these procedures. STUDY DESIGN: experimental in rabbits. AIM: to estimate the relevance of facial muscle activity on facial bones in lab rabbits. MATERIALS AND METHODS: 37 rabbits of two months of age were studied, divided in a study group and a control group, were followed up for a period of 4 months. The study group animals had their facial nerves cut at the cervical root in one side. The facial mesostructure of the animals was removed in block for later morphometric studies through computer graphics made out of the digital pictures of the specimens. Results were submitted for comparative statistical analysis. CONCLUSION: The lack of muscle activity in half of the face produces an ipsilateral shift of the facial mesostructure in developing rabbits.


Subject(s)
Animals , Rabbits , Facial Bones/growth & development , Facial Muscles/physiology , Facial Paralysis/surgery , Maxillofacial Development/physiology , Face/anatomy & histology , Facial Paralysis/physiopathology , Models, Animal , Random Allocation
7.
J. appl. oral sci ; 16(2): 116-121, Mar.-Apr. 2008. tab
Article in English | LILACS | ID: lil-479756

ABSTRACT

This study evaluated the effect of implant-supported oral rehabilitation in the mandible on the electromyographic activity during mastication and swallowing in edentulous elderly individuals. Fifteen patients aged more than 60 years were evaluated, being 10 females and 5 males. All patients were edentulous, wore removable complete dentures on both dental arches, and had the mandibular dentures replaced by implant-supported prostheses. All patients were submitted to electromyographic evaluation of the masseter, superior orbicularis oris muscles, and the submental muscles, before surgery and 3, 6 and 18 months postoperatively, using foods of different textures. The results obtained at the different periods were analyzed statistically by Kruskal-Wallis non-parametric test. Statistical analysis showed that only the masseter muscle had a significant loss in electromyographic activity (p<0.001), with a tendency of similar response for the submental muscles. Moreover, there was an increase in the activity of the orbicularis oris muscle during rubber chewing after treatment, yet without statistically significant difference. Mandibular fixed implant-supported prostheses in elderly individuals revealed a decrease in electromyographic amplitude for the masseter muscles during swallowing, which may indicate adaptation to new conditions of stability provided by fixation of the complete denture in the mandibular arch.


Subject(s)
Aged , Female , Humans , Male , Middle Aged , Dental Prosthesis, Implant-Supported , Denture, Complete, Lower , Deglutition/physiology , Electromyography , Mastication/physiology , Action Potentials/physiology , Adaptation, Physiological/physiology , Dental Implants , Denture Retention , Follow-Up Studies , Food , Facial Muscles/physiology , Mandible/physiology , Masseter Muscle/physiology , Mouth, Edentulous/rehabilitation , Mouth/physiology , Neck Muscles/physiology
8.
Pró-fono ; 20(1): 67-70, jan.-mar. 2008.
Article in English, Portuguese | LILACS | ID: lil-480044

ABSTRACT

BACKGROUND: stuttering. AIM: to compare muscle activation in fluent and stuttering individuals during speech and non-speech tasks. METHOD: six adults divided in two groups: G1 - three fluent individuals; G2 - three stuttering individuals. Muscle activity (surface electromyography) was captured by disposable electrodes fixed in four regions. Testing situations: muscle rest tension, speech reaction time, non-verbal activity, verbal activity. RESULTS: There was no significant statistical difference between the groups for the rest tension; G2 present longer speech reaction times; G2 presented muscle activity during the non-verbal task similar to that observed during rest; Muscle activity of G1 and G2 during the verbal task demonstrated to be similar. CONCLUSION: these results suggests that for G2 there is a poor control of timing for the coordination of motor processes.


TEMA: gagueira. OBJETIVO: comparar a ativação muscular em indivíduos fluentes e gagos durante tarefas de fala e não-fala. MÉTODO: seis adultos foram divididos em dois grupos: G1 - três indivíduos fluentes; G2 - três indivíduos com gagueira. A atividade muscular (eletromiografia de superfície) foi captada por eletrodos fixados em quatro regiões. Situações testadas: tensão muscular de repouso, tempo de reação da fala; atividade não verbal e atividade verbal. RESULTADOS: não houve significância estatística entre os grupos para a tensão de repouso; G2 apresentou tempo de reação de fala mais longo; G2 apresentou atividade muscular durante a tarefa não verbal semelhante a observada durante o repouso; a atividade muscular de G1 e G2 durante a tarefa verbal foi similar. CONCLUSÃO: estes resultados sugerem que G2 apresenta um pobre controle temporal para a coordenação dos processos motores.


Subject(s)
Adult , Humans , Male , Facial Muscles/physiology , Neck Muscles/physiopathology , Speech/physiology , Stuttering/physiopathology , Analysis of Variance , Electromyography , Muscle Relaxation/physiology , Muscle Tonus/physiology , Reaction Time , Speech Acoustics , Speech Production Measurement
11.
J. pediatr. (Rio J.) ; 82(2): 103-109, Mar.-Apr. 2006. tab
Article in English | LILACS | ID: lil-428488

ABSTRACT

OBJECTIVE: To measure and compare the activity of the masseter, temporalis and buccinator muscles in different infant feeding methods.METHODS: Cross-sectional study of 60 full-term infants with no intercurrent diseases, aged between two and three months, classified into the following groups: 1) exclusive breastfeeding; 2) breastfeeding plus bottle-feeding; and 3) exclusive breastfeeding plus cup feeding. Surface electromyography was performed during infant feeding. The Krushal-Wallis test was used, complemented by multiple paired comparisons of the groups. A 5% significance level was chosen for the tests.RESULTS: Statistically higher results were verified in the breastfeeding group in relation to the bottle-feeding one, both in the range of movement and the mean contraction of the masseter. With regard to the temporalis muscle, statistically higher results were found in the breastfeeding group comparatively to the bottle-feeding one. As to the buccinator muscle, statistically higher results were observed in the breastfeeding group in relation to the bottle-feeding one, although in this case, the difference concerned only the range of contraction.CONCLUSION: The similarities between the muscle activity in the breastfeeding and in the cup-feeding groups suggests that cup-feeding can be used as an alternative infant feeding method, being better than bottle-feeding, due to the hyperactivity of the buccinator muscle, which could result in changes to the structural growth and development of the stomatognathic system functions.


Subject(s)
Humans , Male , Female , Infant , Bottle Feeding , Breast Feeding , Sucking Behavior/physiology , Facial Muscles/physiology , Age Distribution , Cross-Sectional Studies , Double-Blind Method , Electromyography , Milk, Human/chemistry , Pacifiers , Statistics, Nonparametric
12.
Fisioter. Bras ; 4(5): 341-347, set.-out. 2003. tab, graf
Article in Portuguese | LILACS | ID: lil-352201

ABSTRACT

A hiperatividade dos musculos da mastigaçao corresponde a 80 das disfunçoes temporomandibulares. Devido ao fato dos tratamentos existentes atuarem de forma estritamente localizada e por muitas vezes nao ser constatada melhora significativa da sintomatologia, foi observada a possibilidade de haver a relaçao entre postura corporal global e hiperatividade dos musculos da mastigaçao. Este estudo teve por objetivo, verificar a relaçao entre postura corporal global e a hiperatividade dos musculos da mastigaçao. A amostra avaliada foi composta por 53 mulheres, na faixa etaria entre 20 a 30 anos. As integrantes foram submetidas á anammese, avaliaçao clinica das articulaçoes temporomandibulares e avaliaçao postural. Apos a constataçao de ausencia de patologias intra-articulares, a amostra foi dividida em dois grupos: Grupo A (com hiperatividade dos musculos da mastigaçao e Grupo B(sem hiperatividade dos musculos da mastigaçao). Foi constatado que, no grupo B, 60 apresentaram a lordose cervical aumentada 68 o nao nivelamento entre ombros. Concluimos que houve relaçao entre a hiperatividade dos musculos da mastigaçao e a postura corporal, e que as principais alteraçoes estao localizadas no tronco superior.


Subject(s)
Female , Adult , Facial Muscles/abnormalities , Facial Muscles/physiology , Temporomandibular Joint Dysfunction Syndrome/complications , Temporomandibular Joint Dysfunction Syndrome/etiology
13.
Indian J Physiol Pharmacol ; 2003 Apr; 47(2): 217-20
Article in English | IMSEAR | ID: sea-106362

ABSTRACT

Compound muscle action potentials were recorded bilaterally from alae nasi muscles following stimulation of facial nerve in 45 normal subjects in the age group of 20-30 years. Latency, amplitude and total duration of the compound muscle action potential were compared on both sides. A significant positive correlation between the three parameters with the highest for the amplitude was observed. Therefore it is suggested that amplitude is a better parameter for comparison while testing for side to side facial nerve integrity.


Subject(s)
Action Potentials/physiology , Adult , Analysis of Variance , Electromyography/methods , Facial Muscles/physiology , Facial Nerve/physiology , Female , Humans , Male , Reaction Time/physiology
14.
J. bras. ortodon. ortop. facial ; 6(33): 256-261, maio-jun. 2001. ilus
Article in Portuguese | LILACS, BBO | ID: lil-307005

ABSTRACT

Os autores propöem a utilizaçäo de um dispositivo - DIVEL - que, adaptado ao arco vestibular de aparelhos ortodônticos/ortopédicos removíveis, tem a finalidade de induzir a memória sensorial de contato e vedamento labial, auxiliando na terapia miofacial


Subject(s)
Habits , Lip , Facial Muscles/physiology , Equipment and Supplies , Maxillofacial Development , Myofunctional Therapy
15.
Article in English | IMSEAR | ID: sea-42278

ABSTRACT

Headache is one of the most common medical symptoms and tension - type headache is the most common form. Pericranial muscles have been invoked as a source of nociception among patients with tension - type headache. This study was performed to determine surface electromyography (EMG) as representative of the electrical activity of pericranial muscles in tension - type headache and normal subjects during rest and mental calculation. Surface EMG recordings were performed in 20 normal subjects (age 33.9 +/- 8.9 years) and 20 tension-type headache patients (34.5 +/- 9.4 years) using electroencephalograph during the initial rest period for 5 minutes, during mental calculation for 2 minutes and 3 minutes of the rest period. Surface EMG was scored as discharge score (DS) at the third, sixth and ninth minute. The DS at each minute studied showed that the headache group had higher electrical activity than the normal group and increased EMG activity during mental stress was found in the headache group.


Subject(s)
Adult , Electromyography , Facial Muscles/physiology , Humans , Tension-Type Headache/physiopathology
16.
Pró-fono ; 11(1): 1-7, mar. 1999. ilus, tab
Article in Portuguese | LILACS | ID: lil-241976

ABSTRACT

Esta pesqisa foi realizada com o objetivo de estudar a atividade dos músculos orbiculares superior e inferior da boca em crianças com respiraçäo nasal e com respiraçäo bucal por meio de registros eletromiográficos. Foram avaliadas 30 crianças, de ambos os sexos, com idades entre 4 anos e 6 anos e 8 meses, distribuídas, segundo o modo respiratório, em dois grupos de 15 indivíduos. Em todas a s crianças, os registros eletromiográficos foram obtidos nos músculos orbiculares superior e inferior da boca durante a emissäo das sílaas /pa/,/ba/,/ma/,/sa/,/fa/,/va/. Em cada um dos testes os valores dos registros eletromiográficos obtidos (RMS em mv) foram totalizados por músculo examinado em funçäo do grupo e foram calculadas as médias aritméticas. Ao final da pesquisa, as evidências clínicas e a análise dos rsultados permitiram concluir que: a atividade eletromiográfica, de ambos os músculos estudados, foi menor em crianças com respiraçäo bucal do que en crianças com respiraçäo nasal durante os testes de avaliaçäo de emissäo de sílabas...


Subject(s)
Male , Female , Child, Preschool , Child , Humans , Electromyography , Facial Muscles/physiology , Phonetics , Mouth Breathing/complications , Respiration
17.
Pró-fono ; 11(1): 21-6, mar. 1999. graf
Article in Portuguese | LILACS | ID: lil-241979

ABSTRACT

Propusemo-nos a investigar as condiçöes miofuncionais orais de pacientes desdentados totais antes e após o tratamento protético, por meio de avaliaçäo fonoaudiológica e odontológica. Os resultados obtidos indicam alteraçöes da musculatura do sistema estomatognático, bem como das funçöes relacionadas, as quais parecem dificultar a adaptaçäo às próteses totais


Subject(s)
Humans , Middle Aged , Adult , Deglutition/physiology , Denture, Complete , Mastication/physiology , Facial Muscles/physiology , Myofunctional Therapy , Speech Therapy
18.
J. bras. ortodon. ortop. facial ; 3(15): 59-66, maio.-jun. 1998. tab, graf
Article in Portuguese | LILACS, BBO | ID: lil-312770

ABSTRACT

Esta pesquisa foi realizada com o objetivo de estudar a atividade muscular dos músculos orbiculares superior e inferior da boca durante as duas posiçöes de repouso labial citadas na literatura em crianças respiradoras nasais e bucais, a fim de determinar a ocorrência ou näo de diferenças no padräo de atividade destes músculos. Foram avaliadas 30 crianças, de ambos os sexos, com idades entre 4 e 6 anos e 8 meses, distribuídas, segundo o modo respiratório, em dois grupos de 15 indivíduos. Em todas as crianças, os registros eletromiográficos foram obtidos nos músculos orbiculares superior e inferior da boca durante o repouso com e sem contato labial. Em cada um dos testes os valores dos registros eletromiográficos obtidos (RMS em µv) foram totalizados por músculo examinado em funçäo do grupo e foram calculadas as médias aritméticas. Ao final da pesquisa, as evidências clínicas e a análise dos resultados permitiram concluir que: a atividade de ambos os músculos estudados, foi maior em crianças com respiraçäo bucal do que em crianças com respiraçäo nasal durante os testes de avaliaçäo em repouso sem e com contato labial e na manutençäo de esforço, como ocorre no repouso com contato labial, as crianças respiradoras bucais recrutaram proporcionalmente mais atividade que as respiradoras nasais


Subject(s)
Humans , Male , Female , Child, Preschool , Child , Electromyography , Facial Muscles/physiology , Mouth Breathing/complications , Respiration , Lip
19.
Rev. Assoc. Paul. Cir. Dent ; 52(2): 151-7, mar.-abr. 1998. ilus
Article in Portuguese | LILACS, BBO | ID: lil-222420

ABSTRACT

Foi estudada eletromiograficamente a atividade muscular e sua duraçäo nos músculos masseteres e temporais de 19 pacientes normoclusais durante a deglutiçäo e amastigaçäo unilateral direita e esquerda em duas etapas: a primeira sem a interferência oclusal e a segunda com a presença desta. A análise dos resultados demonstrou que a deglutiçäo realizada com interferência oclusal apresentou aumento significativo da atividade muscular e da sua duraçäo quando comparada com o verificado durante a mastigaçäo sob as mesmas condiçöes. A deglutiçäo realizada com desequilíbrio oclusal é preponderante na produçäo de forças em relaçäo à mastigaçäo


Subject(s)
Deglutition/physiology , Dental Occlusion , Electromyography , Mastication/physiology , Facial Muscles/physiology
20.
Ortodoncia ; 62(123): 7-29, ene.1998. ilus, tab
Article in Spanish | LILACS | ID: lil-239178

ABSTRACT

En el presente trabajo se evalúa la actividad muscular de los maseteros medios, temporales anteriores, vientres anteriores de digástricos y suprahioideos en pacientes con mordida abierta y sobremordida mediante un electromiógrafo computarizado y electrodos de superficie, en las distintas funciones, buscando relacionar la actividad muscular con la patología vertical. Se encuentra una relación de predominio de los elevadores en las sobremordidas y predominio de los depresores en las mordidas abiertas y ese equilibrio muscular sería el factor desencadenante de las patologías verticales de la oclusión.


Subject(s)
Humans , Male , Female , Adolescent , Cephalometry , Electromyography/methods , Malocclusion, Angle Class II/etiology , Mandible/growth & development , Facial Muscles/physiology , Hyoid Bone , Malocclusion, Angle Class II/epidemiology , Masseter Muscle , Temporal Muscle
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