Abstract
External root resorption is physiological or pathological destruction of the hard tissues on the root's external surface caused by various factors. Dental trauma is one of the main causes of pathological external root resorption. The manifestation and prognosis of external root resorption are closely related to the type of dental trauma, the degree of root damage, the stage of root development, and the presence of microbial infection et al. Effective management can prevent the occurrence of external root resorption or stop the progress of root resorption to avoid the early loss of traumatic teeth. This review focuses on the clinical manifestations, pathogenesis, and management strategies for permanent teeth with external root resorption after dental trauma, in order to provide a reference for the prevention and intervention of external root resorption after trauma in permanent teeth.
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