左上中切牙种植修复后低咬合1例  

A case of infraocclusion after implant placement and restoration of upper left central incisor

作　　者：刘鲁鹏 赵歌 杨云东 肖慧娟[1] Liu Lupeng;Zhao Ge;Yang Yundong;Xiao Huijuan(Department of Prosthodontic Dentistry,Yantai Stomatological Hospital Affiliated to Binzhou Medical University,Yantai 264001,China;Yantai Stomatological Hospital Development Zone Branch,Yantai 265599,China)

机构地区：[1]滨州医学院附属烟台口腔医院修复科,烟台264001 [2]滨州医学院附属烟台口腔医院开发区分院,烟台265599

出　　处：《中国口腔种植学杂志》2024年第1期77-81,共5页Chinese Journal of Oral Implantology

摘　　要：讨论上前牙缺失患者种植修复后出现低咬合(infraocclusion)现象,分析和讨论此类并发症的原因及临床处理方法。患者左上中切牙外伤致冠根折断至龈下而无法保留,微创拔除患牙后进行不翻瓣即刻种植即刻修复。术后7个月后完成氧化锆饰瓷冠修复,CBCT和根尖X线片检查显示种植体骨结合良好,唇侧骨板厚度充足,边缘骨水平稳定。术后5年随访发现21种植体下沉,呈现低咬合情况。The objective is to discuss the occurrence of infraocclusion after implant restoration in patients with missing upper anterior teeth,analyze and discuss the causes and clinical management methods of such complications.The patient's upper left central incisor was injured,and the crown and root were fractured subgingivally and could not be preserved.The affected tooth was extracted in a minimally invasive surgery and replaced by flapless immediate implant placement and immediate restoration.After 7 months,the zirconia ceramic crown restoration was delivered.CBCT and periapical radiographs with paralleling technique showed good osseointegration,sufficient thickness of the labial bone plate,and stabilization of marginal bone level.During the 5-year follow-up after implant placement,it was found that the implant settled and presented an infraocclusal situation.

关 键 词：牙种植 即刻种植 即刻修复 低咬合 种植体下沉 

分 类 号：R783.6[医药卫生—口腔医学]