RESUMO
BACKGROUND: This study investigates the short-term and long-term effects of thymosin alpha 1 (Talpha1) on reimplantation of avulsed teeth. METHODS AND MATERIAL: Seventy-three patients with avulsed teeth were double-blind randomly assigned to a control group and group that used Talpha1. The teeth were reimplanted after treatment with Talpha1 or saline. Patients were monitored for both short-term and long-term parameters. RESULTS: The thymosin group demonstrated a lower interferon, tumor necrosis factor alpha and interleukin-6 levels (P < .05) and higher white blood cell levels than the control group (P < .05). The thymosin group demonstrated greater periodontal healing (P < .05), less ankylosis (P < .05), less tooth movement, and greater lifetime of the replanted teeth. CONCLUSION: The use of Talpha1 has both short-term and long-term beneficial effects during reimplantation of avulsed teeth.