Evaluation of efficacy of denture occlusal plate combined with comprehensive physical therapy for temporomandibular joint disc displacement without reduction

doi:10.19439/j.sjos.2024.03.011

Abstract

Abstract: PURPOSE: To explore the efficacy of denture occlusal plate combined with comprehensive physical therapy for temporomandibular joint disc displacement without reduction(ADDwoR). METHODS: Sixty patients of ADDwoR and dentition defect or severely worn teeth who visited the Department of Orthodontics and Prosthodontics of Hengshui People's Hospital from January 2019 to December 2020 were selected and randomly divided into denture occlusal plate group (group A) and denture occlusal plate + comprehensive physical therapy group (group B) according to the treatment methods. Maximum mouth opening (MMO) and visual analog pain score(VAS) among all patients were recorded before treatment and every three weeks during three months of treatment. Cone-beam CT(CBCT) was taken before and 3 months after treatment. The changes in clinical efficacy indicators before and after treatment and CBCT data between the two groups were analyzed. Statistical analysis was performed with SPSS 26.0 software package. RESULTS: The differences of VAS of group A and B were statistically significant from before treatment to three weeks after treatment(P<0.05), and group B decreases more. From 3 weeks after treatment, there was a significant difference of group B for MMO and VAS before treatment (P<0.05). From 9 weeks after treatment, there was a significant difference of group A for MMO before treatment (P<0.05), but there was no significant difference in MMO and VAS between group A and B(P>0.05). CBCT showed narrowed anterior joint space, widened posterior joint space, enlarged superior joint space, decreased horizontal angle of the condyle and increased slope of joint nodules (P<0.05). The difference between joint depth, anteroposterior diameter of the condyle, internal and external diameter was not significant (P>0.05). There was significant differences in anterior, superior, and posterior joint space, condylar level angle, and slope of joint nodules of group B compared with group A(P<0.05). CONCLUSIONS: Denture occlusal plate can effectively improve symptoms of ADDwoR, and denture occlusal plate combined with comprehensive physical therapy can quickly improve mouth opening and reduce pain in the joint area.

Key words: Denture occlusal plate, Comprehensive physical therapy, Anterior disc displacement without reduction, Visual analogue scale, Cone-beam CT

CLC Number:

R782.6

LI Su-na, SONG Wen-shang, LIU Zi-lue, DU Yue-ru, CAI Shi-xin. Evaluation of efficacy of denture occlusal plate combined with comprehensive physical therapy for temporomandibular joint disc displacement without reduction[J]. Shanghai Journal of Stomatology, 2024, 33(3): 273-278.

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