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頭部X-線規格計測寫眞에 依한 下顎頭의 觀察
OBSERVATION OF CONDYLES BY ROENTGENOGRAPHIC CEPHALOGRAM

치과방사선 1984년 14권 1호 p.135 ~ 140

소속 상세정보

안형규(安炯珪)/Hyung Kyu Ahn

KMID : 0378219840140010135

Abstract

顎關節撮影法은 大端히 많으나 滿足할만한 方法이 거의 없다. 今番著者는 P. A
Cephalogram男女成人各 70名의 像을 利用計測할 바 다음과 같은 結果를 얻었다.
1. 顆頭의 長軸幅은 男子에서 平均右側 19.80㎜, 左側 19.89㎜, 女子는 平均右側 18.65㎜,
左側 18.10㎜로 男子가 女子에 比하여 若干 컸다.
2. 顆頭中心間距離로 男子平均 119.02㎜, 女子 108.20㎜로 男性이 女性에 比하여 距離가 相
當히 컸다.
3. 兩顆頭中心間線의 中心을 通하는 正中線과 prosthion의 左右間의 偏位는 男女各各
0.37㎜, 0. 64㎜이고 그 Range는 男子 -4.6∼ 5.7, 女子 -3.2∼6.1이며 prosthion은 거의
正中線近處에 있음을 알 수 있었다.
4. 兩側顆頭中心線과 長軸(上下的角度)는 男性은 5.48°, 女性은 6.02°로 男女差는 많
지 않았다.
5. 顆頭의 形態는 男女合하여
右側 A型55(39.3%), B型66(47.1%), C型12(8.6%), D型7(5.0%)
左側 A型60(42.9%), B型58(41,4%), C型14(10.0%), D型8 (5.7%)
6. 左右間의 形態의 配合狀態는
AA 26(18.6%), AB 50(35.7%), AC 10(7.1%), AD 3(2.1%)
BB 26(18.6%), BC 13(9.3%), BD 9(6.4%), CC(0%), CD 3(2.1%)
#초록#
In spite of many projections of TMJ, there are rarely satisfactory projections of TMJ.
The author traced and measured the P-A cephalograms, which number is 70 in each
male and female, them finding the following results.
1. The long axis of the condyle is 19.80㎜ on the right, and 19.89㎜ on the left in
male, and that of 18.65㎜ on the right and 18.10㎜ on the left in female.
2. The intercondylar distance is 119.02㎜ in male, and 108.20㎜ in female, resulting
that the intercondylar distance in male is much longer than that in female.
3. The right and left deviation of the midline passing through the center of the
intercondylar distance and prosthion is +0.37㎜ in male, 10.64㎜ in female, and its range
is from -4.6 to 5.7㎜ in male, and from -3.2 to 16.1㎜ in female, resulting that
prosthion nearly coincides with midline.
4. The angle of the intercondylar distance and the long axis (vertical angle) is +5.48°
in male, and +6.02° in female, resulting that there is a little difference between male
and female and the angle of the right is greater than that of the left in both male and
female.
5. The typology of the condyle in sum of male and female is;
Right : A type 55 (39.3%), B type 66 (47.1%), C type, 12 (8.6%), D type, 7 (5.0%), E
type, 0 (0%)
Left : A type,60 (42.9%), B type, 58 (41.4%), C type,14 (10.0%), D type, 8 (5.7%), E
type, 0 (0%)
6. The distribution of the typology between the right and the left is;
AA 26 (18.6%), AB 50 (35.7%), AC 10 (7.1%), AD 3 (2.1%) BB 26 (18.6%), BC 13
(9.3%), BD 9 (6.4%), CC 0 (0%), CD 3 (2.1%)