Association between diabetes mellitus and the risk of temporomandibular disorder: A nationwide population-based study

This study investigated the association between temporomandibular disorder (TMD) and diabetes mellitus (DM) and the potential risk factors of TMD using data from Taiwan’s Longitudinal Generation Tracking Database. A cohort of 201,465 individuals newly diagnosed with diabetes mellitus (DM) and 805,860 matched non-DM controls was observed from 2000 to 2015. To evaluate the risk factors associated with the onset of temporomandibular disorders (TMD), Cox proportional hazards regression analysis was conducted. The Kaplan–Meier method, along with the log-rank test, was applied to assess the cumulative incidence of TMD among DM patients.

Results from the Cox analysis indicated that having DM significantly increased the likelihood of developing TMD (adjusted hazard ratio: 2.543; p < 0.001). This finding suggests a strong statistical link between chronic metabolic conditions and oral health complications, specifically affecting the temporomandibular joint. The study highlights the importance of considering systemic health factors when evaluating TMD risk in clinical settings.

The authors identified several potential risk factors associated with TMD onset within the diabetic population. These included age, gender, duration of diabetes, and comorbidities such as hypertension and obesity. The analysis controlled for these variables to isolate the specific impact of DM on TMD development. Understanding these associations may inform preventive strategies for both endocrinologists and oral health specialists.

This nationwide population-based study provides valuable insights into the epidemiology of TMD in relation to diabetes. By utilizing a large, representative dataset, the researchers were able to establish robust statistical evidence regarding the relationship between metabolic disease and temporomandibular dysfunction. The findings underscore the need for integrated care approaches that address both systemic and local oral health issues.

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