Expert consensus on the diagnosis and management of tooth developmental anomalies.

Tooth developmental anomalies are a group of disorders caused by unfavorable factors affecting the tooth development process, resulting in abnormalities in tooth number, structure, and morphology. These anomalies typically manifest during childhood, impairing dental function, maxillofacial development, and facial aesthetics, while also potentially impacting overall physical and mental health. The complex etiology and diverse clinical phenotypes of these anomalies pose significant challenges for prevention, early diagnosis, and treatment. As they usually emerge early in life, long-term management and multidisciplinary collaboration in dental care are essential. However, there is currently a lack of systematic clinical guidelines for the diagnosis and treatment of these conditions, adding to the difficulties in clinical practice. In response to this need, this expert consensus summarizes the classifications, etiology, typical clinical manifestations, and diagnostic criteria of tooth developmental anomalies based on current clinical evidence. It also provides prevention strategies and stage-specific clinical management recommendations to guide clinicians in diagnosis and treatment, promoting early intervention and standardized care for these anomalies.