TY - JOUR
T1 - Assessment of mandibular kinematics values and its relevance for the diagnosis of temporomandibular joint disorders
AU - Leissner, Oliver
AU - Maulén-Yáñez, Miguel
AU - Meeder-Bella, Walther
AU - León-Morales, Camilo
AU - Vergara-Bruna, Eduardo
AU - González-Arriagada, Wilfredo Alejandro
N1 - © 2020 Association for Dental Sciences of the Republic of China. Publishing services by Elsevier B.V.
PY - 2020/6/6
Y1 - 2020/6/6
N2 - Background/purpose: Temporomandibular disorders (TMD) are common conditions that involve the temporomandibular joints (TMJs), jaw muscles, or both, and can cause alteration in the mandibular kinematics. The aim of this study was to assess the relationship between mandibular kinematics and temporomandibular joint disorders (TMJD) as a clinical tool for evaluation and diagnosis of these patients.Materials and methods: A retrospective study based on the analysis of the clinical findings from patients' charts was carried out, with a sample size of 476 patients. Statistical analysis was made with chi-square test for qualitative variables and student t-test for quantitative variables. Then, odds ratio with its confidence interval were calculated. A p value < 0.05 was considered statistically significant.Results: Most patients were female (80.7%) and between 16 and 25 years old. Disc displacement with reduction (DDwR) and subluxation were associated with increased kinematic parameters, while disc displacement without reduction (DDwoR) and retrodiscitis were associated with decreased kinematic values. A soft end feel was related to osteoarthritis (OA). Structural incompatibility was most prevalent in older patients.Conclusion: Mandibular kinematic values are associated with specific temporomandibular joint disorders and could be considered as a useful clinical tool to perform the right diagnosis of TMJD.
AB - Background/purpose: Temporomandibular disorders (TMD) are common conditions that involve the temporomandibular joints (TMJs), jaw muscles, or both, and can cause alteration in the mandibular kinematics. The aim of this study was to assess the relationship between mandibular kinematics and temporomandibular joint disorders (TMJD) as a clinical tool for evaluation and diagnosis of these patients.Materials and methods: A retrospective study based on the analysis of the clinical findings from patients' charts was carried out, with a sample size of 476 patients. Statistical analysis was made with chi-square test for qualitative variables and student t-test for quantitative variables. Then, odds ratio with its confidence interval were calculated. A p value < 0.05 was considered statistically significant.Results: Most patients were female (80.7%) and between 16 and 25 years old. Disc displacement with reduction (DDwR) and subluxation were associated with increased kinematic parameters, while disc displacement without reduction (DDwoR) and retrodiscitis were associated with decreased kinematic values. A soft end feel was related to osteoarthritis (OA). Structural incompatibility was most prevalent in older patients.Conclusion: Mandibular kinematic values are associated with specific temporomandibular joint disorders and could be considered as a useful clinical tool to perform the right diagnosis of TMJD.
KW - Articular
KW - Disc displacement
KW - Osteoarthritis
KW - TMD
KW - TMJ
U2 - 10.1016/j.jds.2020.05.015
DO - 10.1016/j.jds.2020.05.015
M3 - Article
C2 - 33384804
SN - 1991-7902
VL - 16
SP - 241
EP - 248
JO - Journal of Dental Sciences
JF - Journal of Dental Sciences
IS - 1
ER -