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目的:通过锥形束CT研究上颌切牙牙根与牙槽突的位置关系,并进行分型,为上颌切牙种植治疗方案的选择提供参考依据。方法:回顾性分析648例患者CBCT影像资料,按照五种解剖类型对2502颗上颌切牙矢状面图像进行分析、统计,计算每种解剖类型所占的百分比。结果:上颌切牙五种解剖类型所占的百分比和数量分别为Ⅰ型1242(49.9%),Ⅱ型696(28%),Ⅲ型168(6.7%),Ⅳ型156(6.3%),Ⅴ型228(9.1%)。结论:通过CBCT图像对上颌切牙解剖类型的分析,可以帮助制定合理的种植治疗方案,有一定的临床指导意义。
OBJECTIVE: To study the relationship between the root and the alveolar process of the maxillary incisor by cone beam computed tomography (CT) and to determine the location of the maxillary incisor. Methods: CBCT images of 648 patients were retrospectively analyzed. The sagittal images of 2502 maxillary incisors were analyzed according to five anatomic types. The percentage of each anatomical type was calculated and calculated. Results: The percentages and numbers of the five anatomical types of maxillary incisors were type Ⅰ 1242 (49.9%), type Ⅱ 696 (28%), type Ⅲ 168 (6.7%), type Ⅳ 156 (6.3%), Type 228 (9.1%). Conclusion: The analysis of the anatomic types of maxillary incisors by CBCT images can help to develop a reasonable plan of implant treatment, which has certain clinical significance.