Effect of Articular Cavity Injection Combined with Bite Splint Treatment on Anterior Disc Displacement Without Reduction

Abstract

Objective: To observe the clinical effect of articular cavity injection combined with bite splint therapy for the treatment of anterior disc displacement without reduction (ADDWoR). Methods: The research subjects for this study were 30 patients with ADDWoR treated in the temporomandibular joint specialist outpatient clinic from November 2018 to November 2019, with a disease duration of 1 to 6 months. The treatment group was treated with an articular cavity injection of sodium hyaluronate + bite splint. The control group was treated with a simple articular cavity injection of sodium hyaluronate. The two groups were followed up once every 2 weeks to evaluate the treatment effect and observe the clinical efficacy of the two groups. Statistical analysis was carried out using SPSS 24.0. t-test and general linear regression analysis were carried out to compare the data of both groups, and χ2-test and binary logistic regression analysis were performed for pain index comparison. Results: There was no significant difference in terms of the efficacy of the treatment received by both groups. The mouth opening and joint pain of patients in both groups were significantly improved after treatment (P < 0.001). Conclusion: Articular cavity injection of sodium hyaluronate and occlusal splint therapy are both effective and safe methods for treating ADDWoR.