Meeting abstract
The Influence of Bruxism on Mandibular Movement
M. Muhvić-Urek
I. Uhač
Z. Kovač
M. Šimunović-Šoškić
Robert Antonić
Josipa Borčić
Abstract
The aetiology of temporomandibular disorders (TMD) remains controversial. The role of bruxism is still under discussion.
The objective of this investigation was to determine the effect of bruxism on the function of the stomatognatic system.
A group of 46 bruxers, aged from 24-52 years (x = 35.03 ± 6.92) was examined. The control group consisted of 50 nonbruxers aged from 25-51 years (x = 37.24 ± 6.37) bruxism was assessed by a questionaire and clinical examination. A precise calliper was used to measure jaw movement. Maximal opening, right and left aterotrusion, and maximal protrusion were measured. The mean value of maximal opening in the bruxers group was 48.51 ± 5.01 mm, and in the nonbruxers group 49.76 ± 6.92 mm. Ther mean value of maximal right laterotrusion in the bruxers group was 10.04 ± 2.51 mm, and of left laterotrusion 9.74 ± 2.50 mm compared to the
nonbruxers group where the mean value of right laterotrusion was 10.31 ± 2.47 mm, and left laterotrusion 10.33 ± 2.30 mm. The mean value of maximal protrusion in the bruxers group was 9.53 ± 1.97 mm, while in the nonbruxers group it was 10.81 ± 2.29 mm. Pearson ?2 test analysis shows statisticaly significant difference (p < 0.05) between the groups only in relation to the maximal protrusion
(t = 2.93, p = 0.0004).
The results of this study suggest that bruxism may only have a limited influence on mandibular mobility.
Keywords
Hrčak ID:
3455
URI
Publication date:
15.9.2003.
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