摘要
目的分析影响后牙区种植修复基台及其螺丝折断发生的因素并探讨预防措施。方法回顾2010年1月至2015年12月在郑州大学第一附属医院口腔种植科完成后牙区种植修复且已行使功能>5 a的患者病历资料,统计分析患者种植修复基台及其螺丝折断的发生情况及其影响因素,并探讨相应的预防措施。结果本研究共纳入1055名患者(男500名,女555名),共植入1954颗种植体,其中12名患者(男8名,女4名)的12颗种植体发生种植修复基台及其螺丝折断,发生时年龄为(48.17±8.04)岁,种植修复体平均行使功能时间(6.50±1.45)a。12名患者中11例出现种植修复基台折断,1例种植修复基台与螺丝同时折断,种植修复基台及其螺丝折断的发生率为0.61%。结论种植修复基台及其螺丝折断的原因包括咬合力过大、不良咬合习惯(夜磨牙、紧咬牙和偏侧咀嚼)、种植牙对颌是天然牙、内连接种植体角度基台使用出现基台应力集中。
Objective To analyze the factors affecting the fracture of implant abutment andscrew in molar area and to discuss the preventive measures.Methods The medical records of patients who completed posterior dental implant restoration in the Dental Implant Department of the First Affiliated Hospital of Zhengzhou University from January 2010 to December 2015 were reviewed,and the occurrence and basic data of implant abutment and screw fracture in these patients were statistically analyzed,and the factors affecting the occurence of implant abutment and screw fracture were analyzed.Then discuss the corresponding preventive measures.Results A total of 1055 patients(500 males and 555 females)were included in this study,and a total of 1954 implants were implanted.The 12 implants of 12 patients(8 males and 4 females)had broken abuts and screws for implant repair,and the mean age was(48.17±8.04)years.The average functional time of implant was(6.50±1.45)years.Among the 12 patients,11 cases of implant abutment were broken,and 1 case of implant abutment and screw were both broken at the same time.The incidence of implant repair abutment and screw fracture was 0.61%.Conclusion The reasons for the breakage of the implant restoration abutment and its screws include excessive biting force,poor biting habits(night grinding,tight biting,and unilateral chewing),natural teeth in the opposite jaw of the implant,and stress concentration in the abutment caused by the use of the internal connection implant angle abutment.
作者
赵鹏
许嘉琳
岳增文
吴东
刘杰
吴豪阳
ZHAO Peng;XU Jiain;YUE Zengwen;WU Dong;LIU Jie;WU Haoyang(Department of Oral Implantology,the First Affiliated Hospital of Zhengzhou University,Zhengzhou 450000,China)
出处
《河南医学研究》
CAS
2024年第2期202-205,共4页
Henan Medical Research
基金
河南省科技攻关项目(232102311131)。
关键词
种植修复基台
螺丝
折断
并发症
implant abutment
screws
fracture
complication
