The Relationship Between Type of Occlusion and TMJ Sounds

Abstract

Utjecaj okluzije na nastanak zvuka u temporomandibularnom zglobu nije potpuno potvrđen. Svrha je ovog istraživanja bila utvrditi utjecaj okluzijskih koncepcija na nastanak zvuka u temporomandibularnome zglobu. Ispitivana skupina sastojale se je od 96 ispitanika u dobi od 24 - 52 godine (x = 35,03 ± 6,92). Okluzijske koncepcije određene su kliničkim pregledom. U ovisnosti o kontaktima na laterotruzijskoj i meziotruzijskoj strani ispitanici su kategorizirani u tri skupine (okluzija vođena očnjakom, grupna funkcija, te bilateralno uravnotežena okluzija). Kliničkim pregledom te auskultacijom s pomoću stetoskopa registrirano je postojanje zvuka. 70,83 % ispitanika imalo je okluziju vođenu očnjakom, 16,66 % grupnu funkciju, a 12,5 % bilateralno uravnoteženu okluziju. Zvuk u temporomandibularnom zglobu postojao je u 41,6 % slučajeva. Rezultati statističke raščlambe (Pearson ?2) pokazuju da između skupina nema statistički znatne razlike (?2 = 2,09 p = 0,351). Rezultati ovog istraživanja upućuju na zaključak da okluzijske koncepcije nemaju utjecaja na nastanak zvuka u temporomandibularnom zglobu.The influence of occlusion on the occurrence of sound in the temporomandibular joint had not been complately proved. The objective of this investigation was to determine the effect of type of occlusion on the occurrence of sounds in the TMJ. A group of 96 subjects, aged from 24-52 years (x = 35.03 ± 6.92) was examined. The type of occlusion was dentermined by clinical examination. Depending on the contacts on the laterotrusal and mediotrusal side the subjects were categorized into three groups (canine guided occlusion, group function and balanced occlusion). The existence of sounds was registred by means of a clinical examination and auscultation by stethoscope. In the examined group 70.83% of examinees had canine guidance, 16.66 % group function and 12.5 % balanced occlusion. Temporomandibular joint sound was present in 41.6 % of subjects. The results of the statistical analysis (Pearson ?2) shows no statistically significant difference between these 3 groups (?2 = 2.09 p = 0.351). The results of this study suggest that the type of occlusion does not have an influence on the occurrence of sound in the TMJ