engleski

The Relation between Occlusion and Bruxims

The etiology of bruxism and the role of occlusion, has not been yet entirely clarified. Objective of investigation: The objective of this investigation was to determine the effect of occlusal relationships on the occurrence of bruxism. Methods: A group of 46 bruxers, aged from 24-52 years (X=35.03&#61617; ; ; ; 6.92) was examined. The control group consist of 50 nonbruxers, aged from 25-51 years (X=37.24&#61617; ; ; ; 6.37). Bruxism was assessed by questionnaire and by clinical examination. The number of teeth, the number of teeth in occlusion, type of occlusion (canine guided occlusion, group function and balanced occlusion) was determined by clinical examination. Overbite and overjet were measured. RCP position was determined by chin-point technique, and fixing by Lucia-jig. The sliding from RCP to IKP position was determined in the anteroposterior, vertical and lateral direction. A precise calliper was used to measure movement. Results: The Pearson &#967; ; ; ; &#178; ; ; ; test analysis shows statisticly significant difference (p<0.05) between the groups only in relation to the number of posterior teeth, and unilateral concact in RCP. The same is confirmed by the analysis of variance (ANOVA). Conclusion: Overbite, overjet, RCP &#8211; ; ; ; ICP slide lenght, and type of occlusion, i.e. mediotrusion interferences, do not have an influence on the occurrence of bruxism. An association is present between bruxism and reduction in number of posterior teeth and unilateral concact in RCP.

occlusion; bruxism; teeth

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