改良数字化导板对第二磨牙游离缺失辅助种植的精确度  

Accuracy of modified implant template of assisted implantation in missing second molars

作　　者：张宇航 曾宇宁 曾尽娣 卢依旋 叶慧 吉建新[1] Zhang Yuhang;Zeng Yuning;Zeng Jindi;Lu Yixuan;Ye Hui;Ji Jianxin(Department of Stomatology,First Affiliated Hospital of Guangzhou Medical University,Guangzhou 510120,Guangdong Province,China;Guangzhou Xinde Junle Dental Clinic Co.,Ltd.,Guangzhou 510620,Guangdong Province,China)

机构地区：[1]广州医科大学附属第一医院口腔科,广东省广州市510120 [2]广州信德君乐口腔门诊部有限公司,广东省广州市510620

出　　处：《中国组织工程研究》2025年第4期738-744,共7页Chinese Journal of Tissue Engineering Research

基　　金：广东省科技厅项目(粤财教[2013]97号),项目名称:根管直径和锥度对根充效果的影响,项目负责人:吉建新。

摘　　要：背景:静态数字化导板辅助种植可提高种植精度,但对于开口度小和种植位点牙合间距离小的患者后牙区使用较为受限,为此需要对数字化导板进行改良。目的:研究改良数字化导板对第二磨牙游离缺失辅助种植的精确度。方法:选择2020年7月至2023年7月就诊于广州医科大学附属第一医院的第二磨牙游离缺失患者40例,采用掷硬币法随机分为试验组(n=22)与对照组(n=18),分别接受改良数字化导板辅助种植手术与常规自由手种植手术。对患者术前及术后锥形束CT进行重叠分析,比较组间的颈部偏差、尖端偏差、深度偏差、角度偏差值。术后1周,通过目测类比评分评估患者对手术过程的满意度。结果与结论:①试验组植入25颗种植体(上颌12颗,下颌13颗),对照组植入23颗种植体(上颌8颗,下颌15颗),试验组患者颈部偏差、尖端偏差、深度偏差、角度偏差值均小于对照组(P<0.05,P<0.001);试验组组内上颌种植位点与下颌种植位点精确度比较无差异(P>0.05);②两组患者对手术过程的满意度比较差异无显著性意义(P>0.05);③结果表明,改良数字化导板对第二磨牙游离缺失辅助种植可提高手术精度,适用于开口度小和种植位点牙合间距离小的患者后牙区。BACKGROUND:Computer-assisted implant surgery can improve implantation accuracy,but the use of implant template in the posterior tooth area is limited for patients with small opening and small interocclusal distance.Therefore,the digital guide has been improved.OBJECTIVE:To study the effect of modified implant template on the accuracy of assisted implantation in missing second molars.METHODS:From July 2020 to July 2023,40 patients who received digital guide plate implantation or free hand implantation to repair missing second molars were selected from First Affiliated Hospital of Guangzhou Medical University.According to the coin toss method,patients were randomly divided into a trial group(n=22;modified digital guide assisted implantation)and a control group(n=18;free hand implantation).The data of neck deviation,tip deviation,depth deviation,and angle deviation were compared between groups for preoperative and postoperative cone beam CT overlap analysis.One week after the operation,the patients’satisfaction with the operation was assessed by visual analog scale score.RESULTS AND CONCLUSION:(1)The trial group included 25 implants(12 in the upper jaw and 13 in the lower jaw);the control group included 23 implants(8 in the upper jaw and 15 in the lower jaw).The neck deviation,tip deviation,depth deviation,and angle deviation of the trial group were all smaller than those of the control group(P<0.05,P<0.001).There was no significant difference in accuracy between the maxillary and mandibular implant site in the trial group(P>0.05).(2)There was no significant difference in satisfaction with the operation between the two groups(P>0.05).(3)The results showed that improving the digital guide plate for assisted implantation for missing second molar can improve surgical accuracy and is suitable for patients with small opening and small interocclusal distance in the posterior tooth area.

关 键 词：种植精度 改良种植导板 第二磨牙缺失 牙合间距离 牙种植 

分 类 号：R459.9[医药卫生—治疗学] R318.01[医药卫生—临床医学] R782.13