Comparative analysis of craniofacial asymmetry in subjects with and without symptoms of temporomandibular joint disorders: a cross-sectional study

Anita Pradhan; Preeti Bhattacharya; Shivani Singh; Anil Kumar Chandna; Ankur Gupta; Ravi Bhandari

doi:10.5125/jkaoms.2023.49.3.125

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자료유형: 학술저널

저자정보: Anita Pradhan (Department of Orthodontics and Dentofacial Orthopedics Institute of Dental Sciences Bareilly India) Preeti Bhattacharya (Department of Orthodontics and Dentofacial Orthopedics Institute of Dental Sciences Bareilly India) Shivani Singh (Department of Orthodontics and Dentofacial Orthopedics Institute of Dental Sciences Bareilly India) Anil Kumar Chandna (Department of Orthodontics and Dentofacial Orthopedics Institute of Dental Sciences Bareilly India) Ankur Gupta (Department of Orthodontics and Dentofacial Orthopedics Institute of Dental Sciences Bareilly India) Ravi Bhandari (Department of Orthodontics and Dentofacial Orthopedics Institute of Dental Sciences Bareilly India)

저널정보: 대한구강악안면외과학회 대한구강악안면외과학회지 대한구강악안면외과학회지 제49권 제3호

발행연도: 2023.6

수록면: 125 - 134 (10page)

DOI: 10.5125/jkaoms.2023.49.3.125

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Objectives: The aim of the study was to quantify and compare craniofacial asymmetry in subjects with and without symptoms of temporomandibular joint disorders (TMDs). Materials and Methods: A total of 126 adult subjects were categorized into two groups (63 with a TMDs and 63 without a TMDs), based on detection of symptoms using the Temporomandibular Joint Disorder-Diagnostic Index (TMD-DI) questionnaire. Posteroanterior cephalograms of each subject were traced manually and 17 linear and angular measurements were analyzed. Craniofacial asymmetry was quantified by calculating the asymmetry index (AI) of bilateral parameters for both groups. Results: Intra- and intergroup comparisons were analyzed using independent t -test and Mann–Whitney U test, respectively, with a P<0.05 considered statistically significant. An AI for each linear and angular bilateral parameter was calculated; higher asymmetry was found in TMD-positive patients compared with TMD-negative patients. An intergroup comparison of AIs found highly significant differences for the parameters of antegonial notch to horizontal plane distance, jugular point to horizontal plane distance, antegonial notch to menton distance, antegonial notch to vertical plane distance, condylion to vertical plane distance, and angle formed by vertical plane, O point and antegonial notch. Significant deviation of the menton distance from the facial midline was also evident. Conclusion: Greater facial asymmetry was seen in the TMD-positive group compared with the TMD-negative group. The mandibular region was characterized by asymmetries of greater magnitude compared with the maxilla. Patients with facial asymmetry often require management of temporomandibular joint (TMJ) pathology to achieve a stable, functional, and esthetic result. Ignoring the TMJ during treatment or failing to provide proper management of the TMJ and performing only orthognathic surgery may result in worsening of TMJ-associated symptoms (jaw dysfunction and pain) and re-occurrence of asymmetry and malocclusion. Assessments of facial asymmetry should take into account TMJ disorders to improve diagnostic accuracy and treatment outcomes.

#Facial asymmetry #Orthognathic surgery #Posteroanterior cephalogram #Temporomandibular joint disorders #Asymmetry index

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