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Desempenho mastigatório em adultos relacionado com a desordem temporomandibular e com a oclusão Masticatory performance in adults related to temporomandibular disorder and dental occlusion

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Author(s)
Cláudia Maria de Felício
Melissa de Oliveira Melchior
Marco Antônio Moreira Rodrigues da Silva
Renata Maria dos Santos Celeghini
Keywords
Articulação Temporomandibular
Mastigação
Oclusão Dentária
Análise de Alimentos
Temporomandibular Joint
Mastication
Dental Occlusion
Food Analysis
Neurosciences. Biological psychiatry. Neuropsychiatry
RC321-571
Internal medicine
RC31-1245
Medicine
R
DOAJ:Neurology
DOAJ:Medicine (General)
DOAJ:Health Sciences
Otorhinolaryngology
RF1-547
DOAJ:Otorhinolaryngology
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URI
http://hdl.handle.net/20.500.12424/919763
Online Access
https://doaj.org/article/9951d79b172240428adffcdafbc0eea4
Abstract
TEMA: desordem temporomandibular e mastigação. OBJETIVO: comparar sujeitos com desordem temporomandibular a um grupo controle quanto à mastigação e analisar as variáveis relacionadas. MÉTODO: 20 sujeitos com desordem temporomandibular (grupo com DTM) e 10 do grupo controle, ambos selecionados de acordo com o exame clínico e anamnese, responderam sobre a sua auto-percepção de severidade de dor e sons nas articulações temporomandibulares, dor nos músculos, sintomas otológicos, cefaléia e dificuldade para abrir a boca. Foram também submetidos ao exame clínico, considerando o número de elementos dentários presentes e a análise funcional da oclusão - medidas de abertura bucal, excursão lateral da mandíbula, interferências oclusais e contatos oclusais do lado de trabalho e balanceio. A mastigação foi avaliada quanto ao tempo para ingerir, ao número de golpes mastigatórios e ao tipo mastigatório (unilateral ou bilateral), usando um biscoito recheado, cuja força máxima para quebrá-lo no primeiro momento foi de 4341,8g, como verificado com o auxílio do Texture Analyser TA-XT2 (Stable Micro Systems). Os grupos foram comparados por análise de variância e as correlações entre as variáveis foram calculadas pelo teste produto-momento de Pearson. RESULTADOS: a maioria dos sujeitos do grupo controle apresentou tipo mastigatório bilateral, enquanto que no grupo com DTM houve tendência ao tipo mastigatório unilateral. No grupo controle foram estatisticamente maiores os escores do tipo mastigatório e as medidas de lateralidade. No grupo com DTM foram maiores as médias de idade, o tempo de mastigação, o número de golpes mastigatórios e a severidade da DTM. O tempo e o tipo mastigatório foram correlacionados, respectivamente de modo positivo e negativo, à severidade da DTM e ao número de interferências oclusais. CONCLUSÃO: no grupo com DTM a mastigação diferiu do padrão fisiológico normal. O número de interferências oclusais e a severidade da DTM foram as variáveis correlacionadas à mastigação.<br>BACKGROND: temporomandibular disorder and mastication. AIM: to compare subjects who present temporomandibular disorders to a control group considering mastication and to analyze the related variables. METHOD: 20 subjects with temporomandibular disorder (TMD group) and 10 controls - selection based on clinical examination and anamnesis - responded to a questionnaire on the self-perception of pain severity and presence of noise in the temporomandibular joints, muscle pain, otologic symptoms, headaches, and jaw opening difficulties. The subjects were also submitted to a clinical examination regarding the number of teeth and functional occlusion - measurements of jaw opening and jaw lateral excursions, occlusal interferences, occlusal contacts of the working and non-working-side, and mastication evaluation. Mastication was evaluated in terms of time needed to eat a stuffed cookie, number of chewing strokes and type (unilateral or bilateral). The maximum force needed at first to break the cookie, verified with a TA-XT2 Texture Analyzer (Stable Micro Systems), was of 4341.8 g. The groups were compared using variance analysis and the correlations between variables were calculated using the Pearson product-moment test. RESULTS: most of the control subjects presented bilateral pattern of mastication, whereas the TMD group tended to present the unilateral pattern. Masticatory type scores and laterality measurements were significantly higher in the control group. The TMD group presented higher means in terms of: age, time of chewing, number of chewing strokes and TMD severity. Chewing time and type were positively correlated with TMD severity and negatively correlated with number of occlusal interferences. CONCLUSION: in the TMD group, chewing differed from the normal physiological standard. The number of occlusal interferences and the severity of TMD were variables correlated to chewing.
Date
2007-06-01
Type
Article
Identifier
oai:doaj.org/article:9951d79b172240428adffcdafbc0eea4
10.1590/S0104-56872007000200003
0104-5687
https://doaj.org/article/9951d79b172240428adffcdafbc0eea4
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