CAJ | 학술논문

　　目的采用锥形束CT（CBCT）测量技术定量评价健康成年人的髁突位置，并对髁突位置的三维测量方法进行探讨。方法筛选50例颞下颌关节健康的成年志愿者进行头颅CBCT扫描，使用Simplant 13.0软件测量髁突在矢状位、轴位和冠状位的相对位置，并进行双侧髁突位置对称性的比较。结果关节上间隙（冠状位）的均值为（4.04±0.93）mm；髁突半径值（轴位）均值为（54.14±2.77）mm；髁突在关节窝内的相对位置（矢状位）（AE’/AC）为（49.27±4.04）％；双侧髁突位置（关节上间隙、髁突半径值及髁突在关节窝内的相对位置）测量结果，差异均无统计学意义（t分别=-0.69、-1.93、0.74，P均＞0.05）。结论健康成年人髁突位于关节窝中位，双侧髁突位置基本对称；CBCT影像测量是评价髁突位置的有效方法之一。
　　목적채용추형속CT（CBCT）측량기술정량평개건강성년인적과돌위치，병대과돌위치적삼유측량방법진행탐토。방법사선50례섭하합관절건강적성년지원자진행두로CBCT소묘，사용Simplant 13.0연건측량과돌재시상위、축위화관상위적상대위치，병진행쌍측과돌위치대칭성적비교。결과관절상간극（관상위）적균치위（4.04±0.93）mm；과돌반경치（축위）균치위（54.14±2.77）mm；과돌재관절와내적상대위치（시상위）（AE’/AC）위（49.27±4.04）％；쌍측과돌위치（관절상간극、과돌반경치급과돌재관절와내적상대위치）측량결과，차이균무통계학의의（t분별=-0.69、-1.93、0.74，P균＞0.05）。결론건강성년인과돌위우관절와중위，쌍측과돌위치기본대칭；CBCT영상측량시평개과돌위치적유효방법지일。
Objective To evaluate the condylar position by using cone-beam computed tomography and explore the three dimensional method to measure condylar position. Methods Fifty volunteers whose temporal-mandibular joints were healthy were selected and scanned by CBCT. Simplant 13.0 software was used to measure the condylar relative position in sagittal, axial and coronal and make comparison of symmetry of bilateral condylar position. Results The mean distance of the coronal, axial, sagittal (A E’/AC ) were (4.04±0.93)mm,(54.14±2.77) mm,(49.27±4.04)%respectively. There was no statistic significance among bilateral condyles (t=-0.69,-1.93,0.74,P>0.05). Conclusions The condylar position of healthy adults is lying the centre of glenoid fossa, and their bilateral condyles are almost symmetric. CBCT measurement is an effective method to evaluate the condylar position.