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顎關節規格攝影法에 依한 顆頭位의 分析硏究
RADIOGRAPHIC ANALYSIS OF THE TEMPOROMANDIBULAR JOINT BY THE STANDARDIZED PROJECTION TECHINIQUE

치과방사선 1983년 13권 1호 p.7 ~ 15

소속 상세정보

최한업(崔瀚業)/Han Up Choe

KMID : 0378219830130010007

Abstract

曠合狀態가 比較的正常이고 顎關節에 症狀이 없는 成人 45名과 顎關節部의 骨折, 外傷, 腫
瘍等에 依한 形態異常이 없으면서 疼痛, 不快感, 開口障碍 및 關節雜音등 顎關節의 異常을
呼訴하는 96名을 閉口時 및 2.54㎝開口時左右側顎關節斜側方位 X線規格寫眞을 撮影하여
關節間隔 및 顆頭의 移動距離等을 計測分析하여 다음과 같은 結論을 얻었다.
1. 閉口時顆頭頂點이 關節最深點後方에 位置하는 境遇가 正常人은 左右側平均 8.9%
였고 患者는 26.6%였다.
2. 開臼時顆頭頂點의 關節隆起에 對한 位置關係는 常人은 後方位置가 2.2%이고 患者는
39.6%였다.
3. 2.54㎝開口時顆頭의 前方移動距離는 正常人에서 左右側平均 13.49㎜였고 患者는
10.68㎜ 였다.
4. 顆頭頂點의 實際移動距離는 正常人은 左右側平均 13.96㎜였고, 患者는 10.27㎜였다.
5. 左右側顆頭間의 位置差는 患者가 正常人에 比하여 약간 큰 것으로 나타났다.
#초록#
The purpose of this study was to investigate the radiographic images of the condylar
head in clinically normal subjects and the TMJ patients using standardized projection
technique. 45 subjects who have not clinical evidence of TMJ problems and 96 patients
who have the clinical evidence of TMJ problems were evaluated, but the patients who
had fracture, trauma and tumor on TMJ area were discluded in this study.
For the evaluation of radiographic images, the author has observed the condylar head
positions in closed mouth and 2.54㎝ open mouth position taken by the standardized
trans cranial oblique lateral projection technique.
The results were as follows:
1. In closed mouth position, the crest of condylar head took relatively posterior
position to the deepest point of the glenoid fossa in 8.9% of the normals and in 26.6%
of TMJ patients.
2. In 2.54㎝ open mouth position, condylar head took relatively posterior position to the
articular eminence in 2.2% of TMJ patients and 39.6% of the normals.
3. In open mouth position, the horizontal distance from the deepest point of the
glenoid fossa to the condylar head was 13.96㎜ in the normals and 10.68㎜ in TMJ
patients.
4. The distance of true movement of condyalr head was 13.49㎜ in the normals and
10.27㎜ in TMJ patients.
5. The deviation of mandible in TMJ patients was slightly greater than that of the
normals.