• 作者：Aline Monise Sebastiani^a ; ^{Sebastiani.aline@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; Flares Baratto-Filho^b ; Daniel Bonotto^c ; Leandro Eduardo Kluppel^d ; Nelson Luis Barbosa Rebellato^d ; Delson Jo&atilde ; o da Costa^d ; Rafaela Scariot^b
• 刊名：Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：121
• 期：2
• 页码：119-125
• 全文大小：306 K

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.