基于CBCT的上颌窦外侧壁血管解剖特点及在种植术中的应用分析  

Analysis on CBCT in Evaluating the Shape of the Lateral Wall of Maxillary Sinus and Its Clinical Application

作　　者：余兴亚 孙琼[2,3] YU Xingya;SUN Qiong(Department of Radiology,Hefei Stomatological Hospital,Hefei 230001,Anhui,China;Hefei Dental Clinical College of Anhui Medical University,Hefei 230001,Anhui,China;Second Department of Dental Pulp,Hefei Stomatological Hospital,Hefei 230001,Anhui,China)

机构地区：[1]合肥市口腔医院放射科,安徽合肥230001 [2]安徽医科大学合肥口腔临床学院,安徽合肥230001 [3]合肥市口腔医院牙体牙髓二科,安徽合肥230001

出　　处：《中国美容医学》2024年第6期121-123,148,共4页Chinese Journal of Aesthetic Medicine

基　　金：2019合肥市卫生健康委应用医学研究项目(编号:Hwk2019yb016)

摘　　要：目的:采用锥形束计算机断层扫描(Cone-beam computed tomography,CBCT)在上颌第一磨牙位点研究上颌窦动脉及相关解剖特点。方法:在2020年1月-2022年8月合肥市口腔医院影像库中选择上颌第一磨牙缺失就诊于种植科的363例患者(共500个上颌窦,其中男181例,女182例),测量上颌窦动脉直径、动脉处相对应的上颌窦外侧壁的厚度、上颌窦窦底至牙槽嵴顶距离L1、外侧壁平面上颌窦动脉至上颌窦底的距离L2,对各测量值进行统计分析,并评估手术中出血风险。结果:上颌窦动脉直径平均为(1.14±0.45)mm,不同性别之间的平均直径无差异性。上颌窦外侧壁厚度平均为(1.79±0.45)mm,上颌窦动脉直径与上颌窦外侧壁厚度有相关性。L1平均为(5.30±2.87)mm,58.14%的患者需行上颌窦外提术;L2平均为(8.53±3.08)mm。不同性别的上颌窦外侧壁厚度、L1有差异性。结论:CBCT可清晰地观察到上颌窦动脉的位置等种植相关解剖特点,以及可以直接测量相关指标,其三维影像可为临床种植手术提供术前指导、评估相关手术风险。Objective Cone-beam computed tomography(CBCT)was used to study the maxillary sinus artery and its related anatomical features at the site of the maxillaryfirst molar.Methods From January 2020 to August 2022,363 patients(including 500 maxillary sinuses,including 181 males and 182 females)with missing maxillary first molar were selected from the image database of Hefei Stomatological Hospital.The diameter of maxillary sinus artery,the thickness of the lateral wall of maxillary sinus corresponding to the artery,the distance L1 from the bottom of maxillary sinus to the top of alveolar ridge,and the diameter of maxillary sinus artery from the lateral wall plane to the bottom of maxillary sinus were measured.Results The average diameter of maxillary sinus artery was(1.14±0.45)mm,and there was no difference between the sexes.The average thickness of lateral wall of maxillary sinus is(1.79±0.45)mm,and the diameter of maxillary sinus artery is related to the thickness of lateral wall of maxillary sinus.The average distance L1 from the base of maxillary sinus to alveolar ridge is(5.30±2.87)mm,and 58.14%of them need maxillary sinus extraction.The average distance L2 from the maxillary sinus artery to the maxillary sinusfloor on the lateral wall plane is(8.53±3.08)mm.The lateral wall thickness and L1 of maxillary sinus are different in different sexes.Conclusion CBCT can clearly observe the anatomical characteristics related to implantation,such as the location of maxillary sinus artery,and can directly measure related indexes.Its three-dimensional image can provide preoperative guidance for clinical implantation surgery and evaluate related surgical risks.

关 键 词：锥形束CT 上颌窦 上颌窦后动脉 上颌窦外侧壁 

分 类 号：R782.2[医药卫生—口腔医学]