关键词: 多发性, 特发性, 牙颈部吸收, 根尖吸收, 牙内吸收

Abstract:

Multiple idiopathic root resorption(MIRR) is a rare progressive destructive dental condition with unclear etiology and pathogenesis. Based on anatomical location, it can be classified into three types: multiple idiopathic cervical root resorption(MICRR), multiple idiopathic apical root resorption(MIARR), and multiple idiopathic internal root resorption(MIIRR). MICRR is characterized by progressive external resorption at the cervical region near the cementoenamel junction, affecting at least three teeth in the dentition. While often asymptomatic initially, it can progress rapidly, leading to occlusal pain, tooth mobility, and eventual tooth loss. MIARR presents as progressive external resorption at the root apex, also involving a minimum of three teeth. This condition typically remains clinically silent until late stages when increased tooth mobility may occur. MIIRR involves progressive internal resorption within the tooth structure, as well as affecting at least three teeth. Early stages are frequently asymptomatic, with tooth discoloration appearing as the condition advances. In recent years, there has been growing international attention to these conditions. This article comprehensively examines their definitions, etiology, diagnostic criteria, treatment approaches, and prognostic outcomes, aiming to provide valuable clinical references for dental practitioners.

Key words: multiple, idiopathic, cervical resorption, apical resorption, internal resorption