RESUMEN
Objectives This study aims to determine the prevalence of the first carpometacarpal (CMC) joint osteoarthritis and Carpal Tunnel Syndrome (CTS) among dentists from different specialties in Saudi Arabia and their association with gender, years of practice, and weekly working hours. Materials and Methods In this cross-sectional study, 361 dentists in Saudi Arabia have completed an online questionnaire of three parts: demographic and health data, the Thumb Disability Exam (TDX), and the Boston Carpal Tunnel Syndrome Questionnaire (BCTQ). Univariate and multivariate analyses of logistic regression were performed to investigate the participants' predictors of the first CMC joint osteoarthritis and Carpal Tunnel Syndrome. The level of significance was set at α = 0.05 for all tests. Results Thumb disability was significantly associated with the female gender (aOR 2.21; 95 percent CI 1.31-3.56) and dentists aged 50 or older (aOR 9.63; 95 percent CI 1.05-88.47). The symptom severity scale (SSS) part of BCTQ was significantly associated with increased risk in the female gender (aOR 1.62; 95% CI 1.62-2.58). Limiting the clinical work to 10-20 hours per week showed a significant reduction in the odds of reporting CTS symptoms in SSS (aOR 0.44; 95% CI 0.21-0.90). CTS-related hand disability was more likely to be reported by the female gender (aOR 2.21; 95% CI 1.36-3.57) and less likely to be reported by endodontic specialists (aOR 0.15; 95% CI 0.04-0.58). Conclusion The female gender was significantly associated with first CMC joint osteoarthritis and CTS among dentists in Saudi Arabia. Other predictors were also identified in this cross-sectional study.