美学区天然基牙二次冠修复中预备体不良边缘的处理策略  

Clinical solutions for natural abutments with preexisting defected crown margin in the aesthetic area

作　　者：刘峰[1] 詹雅琳 刘欣然[1] Liu Feng;Zhan Yalin;Liu Xinran(First Clinical Division,Peking University School and Hospital of Stomatology&National Center for Stomatology&National Clinical Research Center for Oral Diseases&National Engineering Research Center of Oral Biomaterials and Digital Medical Devices,Beijing 100081,China)

机构地区：[1]北京大学口腔医学院·口腔医院门诊部,国家口腔医学中心,国家口腔疾病临床医学研究中心,口腔生物材料和数字诊疗装备国家工程研究中心,北京100081

出　　处：《华西口腔医学杂志》2023年第6期641-646,共6页West China Journal of Stomatology

摘　　要：天然基牙二次冠修复是固定修复的难点之一。天然基牙需要进行二次冠修复的原因包括美学因素、侵犯生物学宽度等。本文将围绕美学区天然基牙二次冠修复中预备体不良边缘如何进行修复-牙周治疗的处理策略进行探讨,梳理美学区天然基牙二次冠修复不良边缘处理的决策树。美学区天然基牙二次冠修复中预备体边缘是核心,总的治疗原则为在适宜的美学位置、适宜的生物学位置,形成清晰、光滑及连续的边缘形态。Crown replacement has remained one of the difficult methods for installing fixed prosthesis but is often performed because of aesthetic factors and invasion of biological width.This article focuses on the clinical scenario in which preexisting crown margin has defects.Given that clinical decisions regarding restoration management and periodontal tissues have to be made with caution,a decision tree of the decision making process for natural abutments in aesthetic area with preexisting defected crown margin is presented.The re-establishment of a new crown margin is the key to the success of a new restoration,and the new margin should be located at the proper esthetic position and right biological position.It should have fine,smooth,and continuous morphology.

关 键 词：美学区 二次冠修复 预备体边缘 

分 类 号：R783.3[医药卫生—口腔医学]