种植体中央螺丝扭矩衰减的回顾性临床研究  

A retrospective clinical study on the torque loss of implant abutment screw

作　　者：虞颖娟 朱文卿 YU Yingjuan;ZHU Wenqing(Department of Oral Implantology,Changzhou Stomatological Hospital,Changzhou 213003,China)

机构地区：[1]常州市口腔医院口腔种植科,江苏常州213003 [2]南京医科大学附属口腔医院口腔特诊科,南京医科大学口腔疾病研究江苏省重点实验室,江苏南京210029

出　　处：《口腔医学》2024年第1期41-45,共5页Stomatology

基　　金：国家自然科学基金青年项目(82201096);江苏省科教能力提升工程——江苏省研究型医院(YJXYYJSDW4),江苏省医学创新中心(CXZX202227)。

摘　　要：目的研究种植体中央螺丝扭矩衰减的临床影响因素,探讨预防中央螺丝松动的适宜加力时机。方法收集2019年12月至2023年6月期间于常州市口腔医院种植科就诊的奥齿泰种植固定修复术后复查的患者。测量并记录中央螺丝扭矩衰减值以及可能的影响因素,包括性别,牙位,种植体直径,种植体负荷天数,共同支持的种植体数、牙冠数和负重比。对可能的影响因素进行皮尔森相关性及多元线性回归分析。结果本研究共收集73例患者的125颗种植体。相关性分析及回归分析显示,种植体负荷天数对中央螺丝扭矩衰减值有显著影响(r=0.616,P<0.001),其余自变量与扭矩衰减值无显著相关性(P>0.05),据此建立的线性回归模型具有统计学意义(R^(2)=0.475,P<0.001)。结论奥齿泰标准型种植体在正常负荷下,种植体负荷天数可以显著正向预测中央螺丝扭矩衰减值。Objective To study the clinical influencing factors of the torque loss value of implant abutment screw and explore theap⁃propriate timing to prevent abutment screw loosening.Methods Patients who visited Implant Department of Changzhou Stomatological Hospital for examination after implantation from December 2019 to June 2023 were collected,and relevant clinical factors were meas⁃ured and recorded,including patientsgender,tooth position,implant diameter,the specification of abutment screw,the number of co⁃supported implants and bridges,the ratio of loading,loading time of the crown,torque loss value of abutment screw.The Person corre⁃lation analysis was performed to filter out independent variables that were highly correlated with the torque loss value of the central screw,and the linear regression analysis was performed.Results This study collected a total of 125 implants from 73 patients.Ac⁃cording to Person correlation analysis and multiple linear regression analysis,implant crown load days had a significant impact on the central screw torque attenuation value(r=0.616,P<0.001),while the other independent variables had no significant correlation(P>0.05).The regression model was statistically significant(R^(2)=0.475,P<0.001).Conclusion The loading days of Osstem standard implant can significantly predict the torque loss value of the abutment screw under normal load.

关 键 词：口腔种植 中央螺丝 扭矩衰减 

分 类 号：R783.4[医药卫生—口腔医学]