<bold>Introduction.</bold> The joint hypermobility syndrome is a connective tissue disorder affecting the entire organism. The symptoms include laxity of joint-stabilizing capsules and ligaments, excessive joint mobility and other accompanying symptoms. Some symptoms manifest in the oral cavity, which is of importance to dentists.
<bold>Aim.</bold> The authors attempted to determine the prevalence of joint hypermobility syndrome in the population studied.
<bold>Material and methods.</bold> The questionnaire study was conducted amongst students of the Faculty of Medicine with Dentistry Division, Medical University of Lublin. The study population consisted of 321 individuals, including 283 Polish students and 37 students of south-eastern nationalities (Saudi Arabia, Taiwan).
<bold>Results and conclusions.</bold> The prevalence of constitutional hypermobility amongst dental students is comparable to that reported in literature. Constitutional hypermobility is more common in students of south-eastern nationalities than in Polish students.
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