Original scientific paper
The Effect of Occlusal Relationships on the Occurrence of Sounds in the Temporomandibular Joint
I. Uhač
Z. Kovač
S. Vukovojac
M. Žuvić-Butorac
R. Gržić
Z. Delić
Abstract
The aim of this investigation was to determine the influence of occlusal relationships
on the occurrence of sounds in the temporomandibular joint. A group of 100 male subjects
aged 24–52 years (X = 35.03±6.92) was examined. Analysis of occlusion included
determination of the number of existing teeth, number of teeth in occlusion, overbite and
overjet, type of occlusion, mediotrusion interferences, relationship of the retruded contact
position (RCP) to intercuspal position (ICP), and the amount and direction of sliding
from RCP to ICP. Sound was registered by means of a stethoscope and classified according
to its character in click or crepitation. Sound was present in 29% of subjects. In
28% of cases it was registered as click and in 2% of cases as crepitation. One subject had
simultaneous click and crepitation. The results of the statistical analysis indicate that
overbite, type of occlusion, existence of mediotrusion interferences, the relationship of
RCP to ICP, and the amount and direction of sliding from RCP to ICP do not have an influence
on the occurrence of sounds. The risk of the occurrence of crepitation is significantly
increased in the case of the loss of more than 5 teeth, and in the case of horizontal
overbite larger than 7.5 mm (p<0.05).
Keywords
Hrčak ID:
28270
URI
Publication date:
17.6.2002.
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