측두하악장애의 임상적 증상과 방사선적 소견과의 관계
The Relation between Clinical sign and Radiographic findings in Temporomandibular Disorders
박병일, 김상희,
소속 상세정보
박병일 ( ) - 원광대학교 치과대학 구강내과
김상희 ( ) - 원광대학교 치과대학 구강내과
KMID : 0355219890140010057
Abstract
66 patients with temporomandibular disorders were selected for experimental group, and 4 5 normal subjects who were Dental students were selected for control group. Average age of experimental group was 30.5 years, Male to Female ratio was 2 : 3, and their age distribution were teen-ages to seventh decades.
Transcranial radiography(TR) with Denar Accurad 100 was used for each group to get the values of width in joint spaces and to investigate the bony changes of articular surfaces and relative conbylar position to articular fossa.
In addition to TR, clinical interview and routine charting about amount of mandibular movements and occiusal variations were carried out in experimental group. The obtained results were as follows:
L The mean values of joint space with in control group were 215?? to anterior, 298.= to superior and 2.29.. to posterior add the. value of relative condylar position to the deepest portion of articular fossa was 021.. to anterior.
In experimental group, those values were 2.01.., 214.., 222.= and 0.12.. to posterior in sequence, respectively. Joint spaces in experimental group, therefore, were inclined to decrease, and relative condylar position was inclined to retrude. Joint space in control group showed symmetric condylar position, but in experimental group showed asymmetry.
2. Non-affected joints with no bony changes in experimental group showed the narrowest joint spaces which were thought to manifest the abnormal stress to non-affected side to dysfunctional state of contralateral affected joints.
3. Amount of mandibular movements in experimental group were within normal values in lateral movements and in protrusive movement but in opening movement with or without passive stretch, those were lower than normal values. Frequency of occlusal variations, for example, protrusive posterior contacts, open bite, median line shift to lateral side were inclined to increase with bony changes and with crepitus.
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