[Effect of stromal cell derived factor-1α combined with autologous platelet poor plasma on avulsion injury of permanent teeth].

Purpose: To explore the therapeutic effect of stromal cell derived factor-1α(SDF-1α) combined with platelet-poor plasma(PPP) on permanent tooth avulsion injury.

Methods: One hundred and forty-four patients with permanent tooth avulsion injuries admitted to Hengshui People's Hospital from March 2020 to March 2022, with a total of 152 affected teeth were included. They were randomly divided into experimental group of 72 cases(76 teeth) and control group of 72 cases(76 teeth).