Original scientific paper

Kineziographic Research of Patients with Cross Bite

R. Gržić
Z. Kovač
D. Kovačević
I. Uhač
Z. Delić

Abstract

The paper describes the use of an objective method for the quantitative analysis of the
relationship between the posterior cross-bite and the occurrence of occlusive interferences
and damages to the mandible muscle elevator. Two groups of subjects were selected
for the analysis: 10 patients with unilateral cross-bite and 10 students without
any symptoms of temporomandibular disorders (TMD). By means of the Robert Jenkelson
K5A kinesiograph we measured maximal – opening velocity of the mandible
(mm/s), maximal- closing velocity (mm/s), first tooth contact velocity and displacement
in the vertical plane at the maximal intercuspidation (mm). The following values were
obtained: maximal-opening velocity in the first group was 349 mm/s and 380 mm/s in
the control group. This difference was incidental. The maximal closing velocity in the
study group was 204.9 and 345.2 in the control group (p < 0.05). The first tooth contact
velocity in the study group was 75.93 and 325 in the control group (p < 0.01). Displacements
in the vertical plane at the maximal intercuspidation in the investigated group
was 0.240.01 mm, while in control group that value was 0120.012 mm.

Keywords

Hrčak ID:

17250

URI

https://hrcak.srce.hr/17250

Publication date:

16.6.2000.

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