摘要牙隐裂的发生与牙齿接受异常 力密切相关，存在于牙齿硬组织上的裂隙不能自限，只要外力存在，裂隙将持续扩展，累及牙髓、根尖周、牙周组织，最终导致牙齿劈裂、丧失。因识别裂隙缺乏客观指标，牙隐裂的临床诊断较为困难；因裂隙扩展的不可控性和个体差异，其治疗预后的不确定性大，临床医师在选择治疗方法时常存在困惑，成为临床医师诊治的难题。另外，牙隐裂的中英文名词术语较多，又难以相互对应，而研究方法和手段局限，使其发病机制的研究进展缓慢，临床研究鲜有突破。本文通过追溯牙隐裂术语的变化，梳理文献中的研究进展，剖析牙隐裂的临床诊治难点，提出临床诊治原则和策略，为临床医师梳理脉络、厘清误区提供帮助。

abstractsThe occurrence of cracked tooth is closely related to the abnormal occlusal force. The cracks existing on hard tissue of tooth cannot be self-limiting. As long as the external force exists, the cracks would continue to expand, involving the pulp, periapical, and periodontal tissues, ultimately leading to splitting and tooth loss. Due to the lack of objective indicators to identify cracks, the clinical diagnosis is difficult; due to the uncontrollability of crack propagation and individual differences, the treatment prognosis is uncertain, thus, clinicians are usually confused in choosing the treatment approaches, making it difficult to diagnose and treat this disease. On the other hand, there are many terms in Chinese and English for cracked teeth, which are difficult to correspond with each other. Moreover, the research approaches and methodologies are limited, which slows down the progress of studies in pathogenesis and leads to few breakthroughs in the field of clinical research. By tracing the changes in the terminology of cracked teeth, sorting out the research progress in the literature, and analyzing the difficulties in clinical diagnosis and treatment, the paper proposes the principles and strategies for diagnosing and treating cracked teeth, to assist clinicians in figuring out the structures and clarifying the misunderstandings of this disease.