Influence of orthognathic surgery for symptoms of temporomandibular dysfunction

Aline Monise Sebastiani; Flares Baratto-Filho; Daniel Bonotto; Leandro Eduardo Kluppel; Nelson Luis Barbosa Rebellato; Delson João da Costa; Rafaela Scariot

doi:10.1016/j.oooo.2015.08.012

Influence of orthognathic surgery for symptoms of temporomandibular dysfunction

Oral Surg Oral Med Oral Pathol Oral Radiol. 2016 Feb;121(2):119-25. doi: 10.1016/j.oooo.2015.08.012. Epub 2015 Aug 22.

Authors

Aline Monise Sebastiani¹, Flares Baratto-Filho², Daniel Bonotto³, Leandro Eduardo Kluppel⁴, Nelson Luis Barbosa Rebellato⁴, Delson João da Costa⁴, Rafaela Scariot²

Affiliations

¹ Student of graduate program in dentistry at Federal Univesity of Parana, Curitiba, PR, Brazil. Electronic address: Sebastiani.aline@gmail.com.
² Professor of the graduate program in dentistry, Positivo University, Curitiba/PR, Brazil.
³ Professor of Temporomandibular Dysfunction and Orofacial Pain of the Federal University of Parana, Curitiba/PR, Brazil.
⁴ Professor of Oral and Maxillofacial Surgery residency of the Federal University of Parana, Curitiba/PR, Brazil.

PMID: 26482191
DOI: 10.1016/j.oooo.2015.08.012

Abstract

Objective: To evaluate the influence of orthognathic surgery on the clinical signs and symptoms of temporomandibular disorders (TMDs).

Study design: In a cohort study, 54 patients undergoing orthognathic surgery were evaluated with regard to the signs and symptoms of TMDs through subjective and objective assessments. These evaluations were performed 1 week preoperatively (T1), 1 month postoperatively (T2), and 6 months postoperatively (T3). The evaluations included patient variables and surgery. Univariate analyzes were performed to verify the association of the variables (P < .05).

Results: The incidence of TMD 6 months after orthognathic surgery was significantly lower (P < .001). TMD intensity decreases significantly in the postoperative period. Females had a higher prevalence of TMD (P = .003) and muscular disorders preoperatively (P = .001). There was a decrease in clicks between T1 and T3 (P = .013). Mouth opening without pain worsened from T1 to T2 (P < .001) and improved from T1 to T3 (P = .015) and T2 to T3 (P < .001). The results were similar for mouth opening with pain (P < .001). In patients undergoing jaw fixation with bicortical screws, mouth opening without pain was significantly less in T3 patients than in patients undergoing fixation with plate and monocortical screws (P = .048).

Conclusions: Orthognathic surgery reduces the clinical signs and symptoms of TMD.

MeSH terms

Adult
Female
Humans
Incidence
Male
Orthognathic Surgical Procedures*
Prevalence
Surveys and Questionnaires
Temporomandibular Joint Disorders / epidemiology
Temporomandibular Joint Disorders / surgery*
Treatment Outcome