Studying the relationship between dental orthodontic treatment and temporomandibular joint disease: A Cross-Sectional Study Using the Fonseca Problem Index
- VernacularTitle:Шүдний гажиг заслын эмчилгээ ба эрүүний үений эмгэгийн хамаарлыг шинжлэх нь: Фонсекагийн асуумжийн индекс ашигласан хөндлөн огтлолын судалгаа
- Author:
WEN DI
1
;
Batbayar B
1
Author Information
1. Department of Oral and Maxillofacial Surgery, School of Medicine, MNUMS
- Publication Type:Journal Article
- Keywords:
Parafunctional habit;
Psychological stress;
Bruxism;
Logistic regression;
Epidemiology
- From:
Mongolian Journal of Health Sciences
2026;95(5):257-262
- CountryMongolia
- Language:Mongolian
-
Abstract:
Background:Temporomandibular Disorders (TMD) represent a significant public health concern, heavily impacting the physical and functional well-being of young adults. This cross-sectional study investigates the prevalence and risk factors of TMD among university students, incorporating a targeted sub-cohort of orthodontic patients from dental clinics across Hunan and Inner Mongolia. It consists of ten questions that differentiate the severity of temporomandibular joint disorders, and these questions are divided into three parts. The main part includes questions 1, 2, 3, 6, and 7, which are also called the Fonseca Short Form Index (SFAI). Whether it is the FAI or the SFAI, they are simple, efficient, and accurate. The Fonseca Short Form Index has been translated into several languages and adapted to suit specific cultural needs.
Aim:To determine the prevalence and severity of TMD and to evaluate the statistical association between orthodontic history, parafunctional habits, and psychological stress.
Materials and Methods:An online survey (N=64) was conducted utilizing the Fonseca Anamnestic Index (FAI). The instrument demonstrated strong internal consistency (Cronbach’s α=0.759). Data analysis employed descriptive statistics and multivariate logistic regression to identify independent risk predictors.
Results:The overall prevalence of TMD symptoms was 50.0% (32/64), predominantly classified as mild (45.3%). In the multivariate analysis, individuals with bruxism were 3.56 times more likely to exhibit TMD (OR=3.559, p=0.027). Furthermore, a significant dose-response relationship was established between TMD and psychological stress (OR=2.680, p=0.050). Notably, students with a history of orthodontic treatment exhibited a lower TMD prevalence (40.9%) compared to those without (54.7%), revealing no statistically significant association (p=0.311).
Conclusions:1. The prevalence of temporomandibular joint disorders among students was (50.0%). 90.6% of students with temporomandibular joint disorders had mild temporomandibular joint disorders. 2. There was no statistically significant association between previous orthodontic treatment and the prevalence of temporomandibular joint disorders. 3. The results of the study indicate that psychosocial stressors and bad habits such as teeth grinding are risk factors for temporomandibular joint disorders.
- Full text:2026100121341284755Шүдний гажиг заслын эмчилгээ ба эрүүний.pdf
