Temporomandibular disorders and Orthodontics: cross-sectional study with RDC/TMD application

Daiana Back Gouvea, Karina Santos Mundstock, Eduardo Silveira Ferreira


Objective: To evaluate whether orthodontic treatment is associated with the presence of temporo-mandibular disorders (TMD) in adolescents and young adults, aged between 12 and 24 years old. Materials and methods: An investigation about TMD signs and symptoms applying the RDC/TMD (Diagnostic Criteria for Research of Temporomandibular Disorders) protocol was performed. A sample of 70 subjects was divided into two groups, orthodontic and control patients. The orthodontic group was formed by 35 volunteers in the active phase of orthodontic treatment and the control group by 35 volunteers with no history of orthodontic treatment. Results: No statistical differences between the groups for self-report symptoms involving history of headache, pain on the face, joint sounds or parafunctional habits before the examinations (p > 0,1) was found. With respect to maximum mouth opening and pain related to mandibular movements, both did not present statistically significant differences. (p > 0,3). Concerning masseter and tem oral muscle pain under palpation, there were no statistical differences between groups (p > 0,5). As for the examination of the temporomandibular joints (TMJ), both groups did not differ for the presence of pain on palpation, nor for the presence of joint sounds (p > 0,4). Conclusions: The study suggests that the use of orthodontic appliances appears not to be associated with the presence or absence of temporomandibular disorders in adolescents and young adults. Longitudinal studies by applying the RDC/TMD protocol are recommended.


Orthodontics; Temporomandibular joint disorders; Temporomandibular joint dysfunction syndrome


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DOI: https://doi.org/10.22456/2177-0018.93437

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e-ISSN 2177-0018 / ISSN 0566-1854.

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