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Signs and symptoms of temporomandibular disorder and patients’ satisfaction before and after orthognathic surgery


Orthodontics. Temporomandibular joint. Malocclusion. Self-concept.

How to Cite

Christovam ERP, Boeck EM, Vedovello SAS, Valdrighi HC, Degan VV, Vedovello Filho M. Signs and symptoms of temporomandibular disorder and patients’ satisfaction before and after orthognathic surgery. Braz. J. Oral Sci. [Internet]. 2017 Apr. 20 [cited 2024 May 24];15(2):137-43. Available from:


Aim: To evaluate signs and symptoms of temporomandibular joint disorder and satisfaction in patients before and after orthognathic surgery. Methods: The sample consisted of 15 patients aged between 19 and 47 years old, indicated for orthodontic-surgical treatment. All patients answered na anamnesis questionnaire based on Helkimo Anamnestic Index to evaluate subjective symptoms and underwent a clinical evaluation based on Helkimo Disfunction Index, applied at three time points: before (T0), three (T1) and six months (T2) after surgery. Statistical models used were χ2 test (Chi-square), Tukey test, confidence interval and analysis of variance (ANOVA). Results: Statistical analysis revealed no significant difference in the incidence of joint sounds, maximum mouth opening, deviation of mouth opening and pain in the TMJ region (p>0.05). No patient presented worsening of the symptomatology. As regards muscular pain, there was a statistically significant improvement with time (p<0.05) and 86.7% of patients reported that they were satisfied with the obtained results. Conclusions: Improvement of TMD after orthognathic surgery may not be the result of correcting malocclusion and satisfaction with the results can be a factor of TMD improvement.


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