title: Association of horizontal and vertical overlap with prevalence of temporomandibular disorders.
abstract: The aim of the study was to evaluate the relationship between horizontal (HO) and vertical overlap (VO) and prevalence of temporomandibular disorders (TMD) in a non-patient population. Out of the total number of subjects (230), 65.7% subjects were classified as asymptomatic, 5.7% subjects had muscle disorders (MD) (myalgia), 9.1% subjects had disc displacement with reduction (DDR), while 19.6% subjects had disc displacement with reduction associated with muscle disorder (DDR + MD) (myalgia). The HO equal to or greater than 5 mm was significantly more prevalent in the symptomatic patients (MD, DDR, DDR + MD) than in the asymptomatic group (P < 0.001). The VO equal to or > 5 mm also demonstrated statistically significant difference (P < 0.006) between the symptomatic (suffering from DDR, and DDR + MD) and asymptomatic subjects. Conclusion of the study is that the HO and VO equal to or > 5 mm was more present in the group of subjects with diagnosis of a TMD (DDR and MD), what distinguishes this group from the group of asymptomatic subjects.
authors.affiliation: Department of Prosthodontics, School of Dental Medicine, University of Zagreb, Croatia. robert.celic@zg.tel.hr
authors.forename: R
authors.initials: R
authors.lastname: Celić
authors.forename: V
authors.initials: V
authors.lastname: Jerolimov
mesh_terms: D000328:Adult; D016009:Chi-Square Distribution; D006801:Humans; D007180:Incisor / Q000503:physiopathology; D008297:Male; D008310:Malocclusion / Q000150:complications*; D013705:Temporomandibular Joint Disorders / Q000209:etiology*