School of Dental Medicine, University of Zagreb, Croatian Dental Society - Croatian Medical Association
Abstract
Značenje okluzijskih preranih dodira u etiologiji temporomandibularnih poremećaja (TMD) ispitivalo se u mnogobrojnim prošlim i novijim člancima dentalne literarture. Svrha ovoga rada bila je raščlaniti odnos između kliničkih dijagnoza TMD-a i različitih tipova okluzijskih preranih dodira [centrični prerani dodiri (kliz između retrudiranoga kontaktnog položaja (RKP) - interkuspidacijskog položaja (IKP) veći od 1 mm), prerani dodiri na radnoj strani i prerani dodiri na neradnoj strani za vrijeme lateralnih i protruzijskih kretnji donje čeljusti] u populaciji mlađih nepacijenata. U studiji je upotrijebljen anketni upitnik koji je uključivao povijest stanja i kliničko funkcijsko ispitivanje. Svi ispitanici (njih 230) bili su muškoga spola (ročnici), u dobnoj skupini od 19 do 28 godina (srednja vrijednost 21,3 ± 2,1). Pojavnost okluzijskih preranih dodira u postotku u 230 mlađih nepacijenata: 65% nije imalo okluzijske prerane dodire za vrijeme ispitivanja funkcijskoga stanja okluzije, 14% ispitanika imalo je centrične prerane dodire (RKP-IKP kliz veći od 1 mm), 5% ispitanika imalo je prerane dodire na radnoj strani i 16% ispitanika imalo je prerane dodire na neradnoj strani za vrijeme lateralnih i protruzijskih kretnji donje čeljusti. Statistička raščlamba nije pokazala znatne razlike u raspodjeli okluzijskih preranih dodira između skupine ispitanika s kliničkim dijagnozama TMD-a i skupine asimptomatskih ispitanika. Zaključili smo da klinički dijagnosticirani TMD-i (mišični poremećaji i poremećaji čeljusnoga zgloba) nisu bili povezani s različitim tipovima okluzijskih preranih dodira. Ova studija bila je usmjerena na populaciju nepacijenata mlađih muškaraca te rezultati nisu primjenjivi na opću populaciju.The significance of occlusal interferences in the aetiology of temporomandibular disorders (TMD) has been questioned in numerous past and recent articles of dental literature. The aim of this study was to analyze the relationship between clinical diagnoses of TMD and different types of occlusal intereferences (centric interferences (retruded contact position (RCP) - intercuspal position (ICP) slide greater than 1 mm), working interferences, and nonworking interferences during lateral and protrusive mandibular movements) in a young adult nonpatient population. A questionnaire including data from history and clinical functional examination was used in the study. All subjects (a total of 230) were male (conscripts), from 19 to 28 years of age (mean 21.3 ± 2.1). The prevalence of occlusal interferences in percentage in 230 young adult non-patients, 65% had no occlusal interferences during examination of the functional state of occlusion, while 14% of subjects had centric interferences (RCP-ICP slide greater than 1 mm), 5% of subjects had working interferences and 16% of subjects had nonworking interferences during lateral and protrusive mandibular movements. Statistical analysis (Chi square test) did not show any significant differences in the distrubution of occlusal interferences between the group of subjects with the clinical diagnoses of TMD and the group of asymptomatic subjects. We concluded that clinical diagnoses of TMD (muscle and temporomandibular joint disorders) were not associated with different types of occlusal interferences. This study focused on a non-patient population of young adult males and the results may not be applicable for the general population
