磨牙-切牙畸形的研究进展  

Research progress of molar-incisor malformation

作　　者：王芳 董培 徐文靖[1] WANG Fang;DONG Pei;XU Wenjing(Tianjin Children's Hospital/Children's Hospital,Tianjin University,Tianjin 300134,China)

机构地区：[1]天津市儿童医院/天津大学儿童医院,天津300134

出　　处：《临床医学研究与实践》2024年第4期195-198,共4页Clinical Research and Practice

摘　　要：磨牙-切牙畸形(MIM)是一种新描述的牙齿发育异常,主要影响到第一恒磨牙、上颌恒中切牙及第二乳磨牙,表现为磨牙牙冠正常,冠颈部明显缩窄,牙髓腔扁平,牙根短、细甚至缺失,上颌恒中切牙牙冠的颈1/3有楔形缺损。MIM病因至今不明,可能与患者出生前两年的全身情况相关。MIM的治疗需要根据牙齿病变的严重程度和患者的口腔情况综合考虑,选择不同的方式。本文就MIM的病因、临床表现、诊断、理化特性、组织学特点以及治疗做一综述。Molar-incisor malformation(MIM)is a newly described tooth development abnormality that mainly affects the first permanent molar,maxillary permanent central incisor and second deciduous molar.It is characterized by normal molar crown,significantly narrowed crown neck,flattened pulp cavity,short,thin or even missing roots,and wedge-shaped defect in cervical 1/3 of the crown of the maxillary permanent incisor.The etiology of MIM is still unknown,which may be related to the systemic condition of the patient in two years before birth.Different treatment methods of MIM should be selected according to the severity of dental lesions and the patients'oral condition.This article reviews the etiology,clinical manifestations,diagnosis,physicochemical properties,histological characteristics and treatment of MIM.

关 键 词：磨牙-切牙畸形 牙齿畸形 第一恒磨牙 

分 类 号：R781.2[医药卫生—口腔医学]