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目的:评价动态导航技术辅助双侧双颧种植的植入精度及临床效果。方法:回顾2015年1月至2019年12月期间于上海交通大学医学院附属第九人民医院口腔第二门诊部及口腔种植科就诊的动态导航下进行双侧双颧种植的24例患者，男性9例，女性15例，年龄（50.8±14.7）岁，共植入96枚颧种植体。将术前规划种植体数据和术后实际植入种植体的螺旋CT或锥形束CT数据经图像融合，测量并记录两者的入口偏差、出口偏差和角度偏差；种植体分别依据种植体植入方式（导航引导下植入12枚，徒手植入84枚）、种植体长度（0.05）。种植体长度0.05）。近中植体组与远中植体组的入口偏差［分别为（1.55±0.69）和（1.43±0.57） mm］、出口偏差［分别为（2.05±0.92）和（2.01±0.57） mm］、角度偏差［分别为2.48°±1.16°和2.49°±1.10°］的差异均无统计学意义（n P>0.05）。导航引导下双侧双颧种植手术均顺利进行，无术中并发症发生，3例患者出现可逆的术后并发症。6个月随访期内2枚颧种植体出现松动，种植体存留率为97.9%（94/96）。n 结论:动态导航系统辅助双侧双颧种植可获得良好的植入精度和临床效果。“,”Objective:To evalute the accuracy and clinical outcome of a real-time navigation system for the placement of quad zygomatic implants.Methods:Twenty-four patients [9 males and 15 females, mean age was (50.8±14.7) years old], from January 2015 to December 2019, with 96 zygomatic implants placed under a real-time navigation system in Department of Second Dental Center and Department of Oral Implantology of Ninth People′s Hospital, Shanghai Jiaotong University School of Medicine were included in the study. The preoperative and the postoperative multislice CT or cone-beam CT were fused to measure and record the entry, exit and angle deviation between the planned and placed implants. The implants were divided into groups according to implant insertion approach (real-time navigation and free-hand), implant length (0.05). All zygomatic implants were placed uneventfully. There were no intra-operative complications, and post-operative reversible complications developed in 3 patients. Two zygomatic implants were lost and the overall zygomatic implant survival rate was 97.9% (94/96) within a follow-up of 6 months.n Conclusions:Quad zygomatic implant placement can be achieved with high accuracy and predictable clinical outcome under guidance of a real-time navigation system.