하악골 과두부의 운동 방향에 따른 유한요소법에 의한 삼차원적 응력해석
THE THREE DIMENSIONAL STRESS ANANYSIS ON VARIOS DIRECTIONS OF THE MANDIBULAR CONDYLE MOVEMENT BY USING FINITE ELEMENT METHOD
소속 상세정보
김성철/Sung-Chul Kim
엄기정/신성수/최동주/권순용/박영주/박준우/이건주/Ki-Jung Eom/Sung-Soo Shin/Dong-Joo Choi/Soon-Yong Kwon/Young-Ju Park/Jun-Woo Park/Gun-Joo Rhee
KMID : 0355619980240030263
Abstract
Ⅴ. 결 론
1. 전체운동시 최대 적응력은 -X 방향에서 나타나며 이때 응력이 후상방 비관절면 중심부
에서 40.98㎏/㎠ 이며, +X, +Y, +Z, -Y, -Z의 순서로 나타났다.
2. 회전운동시 최대 적응력은 +Y방향에서 나타나며 응력이 과두경 전방부에서 173.1㎏/㎠이
며, Z, Z, L2 Y, Ll, Ll, X, L2, X의 순서로 나타났다.
3. 총괄적으론 전체운동시보다는 회전운동에서 응력이 크게 나타났다.
4. 응력집중 부위는 전체운동에서는 관절과두,회전운동에서는 관절경이었다.
5. 상기 결과로 볼 때 악교정 수술시 과두가 후방부로 위치되는 경우와 전방회전되어 위치
하는 경우가 가장 응력을 많이 받는 것으로 나타났다.
6. 이와 같은 결과로 볼때 수술시 과두가 후방부와 전방회전 되는 부위로 위치되지 않도록
예방하는 방법이 항상 고려되어야 한다고 생각한다
#초록#
The condlye head of mandible was usally infleunced by the stressful forces generated
from a voluntary movement of bone fragment after the sagittal ramus osteotomy which
would be mainly performed for the mandibular deformity patient.
In this While study we measured the stress value exerted on condyle and evaluated
which area of condyle had a more stress concentration while condlye head moved in X,
Y and Z axis by using a 3 dimensional finite element model
In X, Y and Z axles by using a 3 dimensional finite element model.
The resule were as follows
1. On bodily movement, the value of maximum force was 40.9㎏/cm2 at
the ( X) direction and the stress area was the center of superioposterior nonarticular
area of the condle.
2. On rotational movement, the value of maximum force was 173.1㎏/cm2
direction and the stress area was the anterior area of condyle neck.
3. From the general point of view, there were more stress on rotational movement
than on bodily movement.
4. The stress concentration area was the condyle head on bodily mevement and the
condyle neck on rotation movement.
5. From the result of this study, We found out that this results were a
correspondance with clinical predictions in which a condlye head got themost stress
concentration only when a condyle head in the posterior position and posterior rotational
position during orthognathic surgery.
6. The results of this study show that we should consider not to place the conyle
head in the positerior position and posterior rotational position during orthognathic
surgery.
키워드
3-dimensional finito olement model; condyle head; bodily movement; rotational movement;
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