The "temporomandibular joint disorder" (TMD) is a term to describe conditions that have an impact on the masticatory system and it involves the muscles of the temporomandibular joint. TMD affects the temporomandibular joint greatly and also includes other problems such as osteoarthritis and Internal derangement. The study aims to assess the prevalence of TMDs in Saudi Arabia in different age populations. This Cross-sectional study was conducted population in Saudi Arabia. Data was collected using an online questionnaire distributed to participants through social media. the questionnaire was translated into the Arabic language. The questionnaire consists first of demographic features such as age, gender, and city, then ten questions of the Fonseca questionnaire. It was transferred to (SPSS) program, version 20 (IBM SPSS Statistics for Windows, Version 20.0. Armonk, NY: IBM Corp). The study included 1085 participants, 54.3% of whom were females. 26.7% of participants were found to be free of TMJD. Mild TMJD was observed in 41.4% of individuals, while 20.5% had moderate TMJD. The remaining 11.4% of participants had severe TMJD. Prevalence of TMJD was significantly associated with participants’ gender and monthly income. In conclusion, TMD is a common problem among adults in Saudi Arabia, with studies suggesting that the prevalence of TMD may be higher than in other parts of the world. Females had a higher prevalence of TMJD with significance. Further research is needed to better understand the burden of TMD in the country and to develop effective strategies for prevention and management.
