国际口腔医学杂志 ›› 2019, Vol. 46 ›› Issue (5): 516-521.doi: 10.7518/gjkq.2019073

• 牙体牙髓专栏 • 上一篇    下一篇

牙颈部外吸收

陈雪,李纾()   

  1. 山东大学口腔医院牙周科 山东省口腔组织再生重点实验室 济南 250012
  • 收稿日期:2018-09-06 修回日期:2019-05-17 出版日期:2019-09-01 发布日期:2019-09-10
  • 通讯作者: 李纾 E-mail:lishu@sdu.edu.cn
  • 作者简介:陈雪,硕士,Email: shirley_jscx@126.com
  • 基金资助:
    国家自然科学基金面上项目(81271138)

External cervical resorption

Chen Xue,Li Shu()   

  1. Dept. of Periodontology, Hospital of Stomatology, Shandong University, Shandong Key Laboratory of Oral Tissue Regeneration, Jinan 250012, China
  • Received:2018-09-06 Revised:2019-05-17 Online:2019-09-01 Published:2019-09-10
  • Contact: Shu Li E-mail:lishu@sdu.edu.cn
  • Supported by:
    This study was supported by the National Natural Science Foundation of China(81271138)

摘要:

牙颈部外吸收是牙根吸收的一种特殊类型,其病因和发病机制尚不十分明确。早期无明显临床症状,多是在X线检查时偶然发现,因此常错过最佳治疗时机。牙颈部外吸收的诊断和治疗都有一定的难度,但若不加以处理会导致严重的牙体硬组织的缺失,甚至是牙齿的拔除。国内外关于牙颈部外吸收的报道很少,且以病例报告为主。本文将从致病因素、发病机制、临床表现、影像学表现、组织病理学特征、临床诊断和治疗进行系统性综述,以期为临床医生提供一定的参考。

关键词: 牙根吸收, 外吸收, 牙颈部, 牙颈部外吸收

Abstract:

External cervical resorption (ECR) is an uncommon form of root resorption. The etiology and pathogenesis of ECR remains obscure. The resorption is generally found serendipitously by radiological examination. Patients are commonly asymptomatic at the early stage; thus, they often miss the best chance to treat ECR. ECR is difficult to diagnose and treat. However, when left untreated, ECR leads to progressive, irreversible loss of hard dental tissue and even teeth extraction. Reports about ECR worldwide are few, most of which are case reports. This paper will systematically review the predisposing factors, pathogenesis, clinical manifestations, radiological presentation, histopathology, clinical diagnosis and subsequent treatment of ECR to provide a reference for clinicians.

Key words: root resorption, external resorption, cervical, external root resorption

中图分类号: 

  • R783.3

图 1

Heithersay将牙颈部外吸收分为4级"

图 2

牙颈部外吸收不同分级的影像学表现(红色箭头) A:Ⅰ级有轻微透射影;B:Ⅱ级为广泛的不规则透射阴影,从牙颈部一直延伸近牙髓腔;C:Ⅲ级在主要的病损区域有不规则的斑点状或云雾状阻射影;D:Ⅳ级除了牙冠部有不规则阴影外,病损可沿着髓腔向根尖方向发展。"

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