Temporomandibular joint disc repositioning and occlusal splint for adolescents with skeletal class II malocclusion: a single-center, randomized, open-label trial

BMC Oral Health

Research

Xin Nie¹  Jiali Sun²  Huimin Zhu²  Chuan Lu²  Jieyun Zhao²  Dongmei He²  Zhi Yang³ 

[1]Biostatistics Office of Clinical Research Unit, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 200011, Shanghai, China

[2]Department of Oral Surgery, Ninth People’s Hospital, College of Stomatology, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, 200011, Shanghai, China

[3]Department of Oral and Cranio-maxillofacial Surgery, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, 200011, Shanghai, China

关键词: Temporomandibular joint;    Anterior disc displacement;    Disc repositioning;    Class II malocclusion;    Adolescent;    Occlusal splints;   

DOI  :  10.1186/s12903-023-03402-3

 received in 2023-01-29, accepted in 2023-09-11,  发布年份 2023

来源: Springer

【 摘 要 】

BackgroundTemporomandibular joint (TMJ) disc repositioning through open suturing (OSu) is a new disc repositioning method. Its result for adolescents with condylar resorption and dentofacial deformities combined with and without postoperative occlusal splints (POS) has not been well studied.ObjectiveThis study was to evaluate and compare the effects of OSu with and without POS in the treatment of TMJ anterior disc displacement without reduction (ADDwoR) in adolescent skeletal Class II malocclusion.MethodsA total of 60 adolescents with bilateral ADDwoR were enrolled in this study. They were randomly allocated into two groups: OSu with and without POS. Magnetic resonance imaging (MRI) and lateral cephalometric radiographs were used to measure changes in condylar height and the degree of skeletal Class II malocclusion from before operation and at 12 months postoperatively. Changes in these indicators were compared within and between the two groups.ResultsAfter OSu, both groups exhibited significant improvements in condylar height and occlusion at the end of 12 months follow-up (P < 0.05). The group of OSu with POS had significantly more new bone formation (2.83 ± 0.75 mm vs. 1.42 ± 0.81 mm, P < 0.001) and improvement in dentofacial deformity than the group of OSu only (P < 0.05). The new bone height was significantly correlated with POS (P < 0.001), the changes of SNB (P = 0.018), overjet (P = 0.012), and Wits appraisal (P < 0.001).ConclusionThese findings indicated that OSu can effectively stimulate condylar regeneration and improve skeletal Class II malocclusion in adolescents with bilateral ADDwoR. The results are better when combined with POS.Trial registrationThis trial was prospectively registered on the chictr.org.cn registry with ID: ChiCTR1900021821 on 11/03/2019

【 授权许可】

CC BY   
© BioMed Central Ltd., part of Springer Nature 2023

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