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Factors Influencing Mandibular Deviation: A Retrospective Clinical Study.
Jiong Zhao1, Simo Xia2, Shijing Yue1
1Department of Oral Surgery, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine.
The Journal of Craniofacial Surgery
|January 31, 2024
Summary
Mandibular deviation (MD) is common in patients with anterior disc displacement (ADD). Advanced ADD staging significantly correlates with MD, impacting condylar height and necessitating consideration of disc position in treatment.
Area of Science:
- Temporomandibular Joint Disorders
- Orthodontics
- Radiology
Background:
- Anterior disc displacement (ADD) is a common temporomandibular joint disorder.
- Mandibular deviation (MD) is a potential clinical manifestation associated with ADD.
- Understanding the factors influencing MD in ADD patients is crucial for effective treatment.
Purpose of the Study:
- To investigate the correlation between mandibular deviation (MD) and clinical factors in patients diagnosed with anterior disc displacement (ADD).
- To identify the primary predictors of MD in ADD patients, focusing on ADD staging and disc displacement characteristics.
Main Methods:
- Retrospective study of 296 ADD patients diagnosed via MRI (2015-2018).
- MD assessed via clinical examination, facial photographs, or cephalograms.
- Logistic regression used to analyze correlations between MD and predictor variables including ADD staging, condylar height, disc displacement distance, age, sex, disease duration, oral parafunctions, depression, and bone mineral density.
Main Results:
- Prevalence of MD was 77% in 278 evaluated ADD patients.
- Bilateral ADD staging significantly correlated with MD on both sides.
- Increased ADD staging and disc displacement severity were associated with higher odds of MD.
Conclusions:
- Anterior disc displacement staging is a significant factor influencing mandibular deviation and condylar height.
- Articular disk position and ADD staging are critical considerations for managing mandibular deviation in ADD patients.
