Dental Department, Kaohsiung Municipal Siaogang Hospital, Kaohsiung, Taiwan.
Dental Department, Taipei Medical University-Shuang Ho Hospital, Taipei, Taiwan.
Biomed Res Int. 2021 Apr 20;2021:5585297. doi: 10.1155/2021/5585297. eCollection 2021.
This study investigated the antilingula and its related landmarks, the mandibular rami, by using cone-beam computed tomography (CBCT).
CBCT images of 37 patients (74 sides of the mandibular ramus) were collected. The landmarks of antilingula (AntiL), anterior ramus (A), posterior ramus (P), superior ramus (S), and inferior ramus (I) were identified. The distances (A-AntiL, P-AntiL, S-AntiL, and I-AntiL) were statistically evaluated according to gender, side (right and left), and skeletal patterns.
The distance from the antilingula to the anterior (A-AntiL) border of the ramus was significantly longer on the right side (14.69 mm) than on the left side (13.97 mm). Male patients had longer AntiL-P, AntiL-I, and S-I distances (18.96, 40.07, and 54.94 mm, respectively) than did female patients (16.66, 35, and 47.54 mm, respectively). Regarding skeletal patterns, the classes can be ordered as follows in terms of the measurements: class III>class II>class I. However, the differences between the classes were nonsignificant. Pearson correlation analysis revealed that gender and S-I distance were strongly correlated ( = 0.667); specifically, male patients had a longer S-I distance. A-AntiL and A-P also exhibited a strong correlation ( = 0.796).
Antilingula-related distances did not differ between skeletal patterns. Among antilingula-related variables, A-AntiL could serve as a favorable measuring point during operation.
本研究通过锥形束 CT（CBCT）探讨了反折线及其相关的下颌支标志点。
收集了 37 名患者（74 侧下颌支）的 CBCT 图像。确定了反折线（AntiL）、前支（A）、后支（P）、上支（S）和下支（I）的标志点。根据性别、侧别（左右）和骨骼类型对反折线至支前缘（A-AntiL）、后缘（P-AntiL）、上缘（S-AntiL）和下缘（I-AntiL）的距离进行统计学评估。
右侧支的反折线至前支前缘（A-AntiL）的距离（14.69mm）显著长于左侧（13.97mm）。男性患者的 AntiL-P、AntiL-I 和 S-I 距离（18.96mm、40.07mm 和 54.94mm）长于女性患者（16.66mm、35mm 和 47.54mm）。就骨骼类型而言，各测量值可按如下顺序排列：III 类>II 类>I 类。但是，各类型之间的差异无统计学意义。Pearson 相关分析显示，性别与 S-I 距离呈强相关（r=0.667）；具体而言，男性患者的 S-I 距离较长。A-AntiL 和 A-P 也呈强相关（r=0.796）。
下颌支反折线相关距离在骨骼类型之间无差异。在反折线相关变量中，A-AntiL 可作为手术中的一个有利测量点。
