Condylar displacement between centric relation and maximum intercuspation in symptomatic and asymptomatic individuals

Autor(es)

Kim Weffort, Soo Young ^[1] ; de Fantini, Solange Mongelli ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Orthodont & Dent Pediat, Fac Dent, BR-05508 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ANGLE ORTHODONTIST; v. 80, n. 5, p. 835-842, SEP 2010.
• Citações Web of Science: 23

Resumo

Objective: To measure condylar displacement between centric relation (CR) and maximum intercuspation (MIC) in symptomatic and asymptomatic subjects. Materials and Methods: The sample comprised 70 non-deprogrammed individuals, divided equally into two groups, one symptomatic and the other asymptomatic, grouped according to the research diagnostic criteria for temporomandibular disorders (RDC/TMD). Condylar displacement was measured in three dimensions with the condylar position indicator (CPI) device. Dahlberg's index, intraclass correlation coefficient, repeated measures analysis of variance, analysis of variance, and generalized estimating equations were used for statistical analysis. Results: A greater magnitude of difference was observed on the vertical plane on the left side in both symptomatic and asymptomatic individuals (P = .033). The symptomatic group presented higher measurements on the transverse plane (P = .015). The percentage of displacement in the mesial direction was significantly higher in the asymptomatic group than in the symptomatic one (P = .049). Both groups presented a significantly higher percentage of mesial direction on the right side than on the left (P = .036). The presence of bilateral condylar displacement (left and right sides) in an inferior and distal direction was significantly greater in symptomatic individuals (P = .012). However, no statistical difference was noted between genders. Conclusion: Statistically significant differences between CR and MIC were quantifiable at the condylar level in asymptomatic and symptomatic individuals. (Angle Orthod. 2010;80:835-842.) (AU)

• Processo FAPESP: 05/60076-4 - Estudo comparativo de determinadas características, das condições musculares, das articulações temporomandibulares, da arquitetura do sono e aspectos respiratórios relacionados, em grupos com e sem DTM
• Beneficiário: Solange Mongelli de Fantini
• Modalidade de apoio: Auxílio à Pesquisa - Regular