Abstract: PURPOSE: To analyze the clinical effect of autotransplantation in a larger sample. METHODS: Three hundred patients with autotransplanted teeth in recent 5 years were analyzed from patient's gender, age, position of receptor and donor tooth, the illness or missing condition of receptor, surgical type, intraoperative guided bone regeneration, root canal therapy and postoperative follow-up, outcomes. RESULTS: Among 300 patients with autotransplantated teeth, there were 120 men and 180 women, aged from 17 to 62 years old (average 32±9.18). There were 45 maxillary first molars, 28 maxillary second molars, 104 mandibular first molars, and 123 second mandibular molars, and mandibular molar accounted for 75.67%. Seventy-four were residual roots, 116 were residual crown, 35 had odontagma, 16 had periapical periodontitis, 19 had root absorption, 19 had decay and endodontic perforation, 21 had missing teeth for a long time. One hundred and forty-two teeth were from the third maxillary molars, 158 from the third mandibular molar. One hundred and ninety-one cases had simultaneous surgery, and 109 had delayed operation. Forty cases received highly concentrated growth factors blood fibrin (CGF), 64 received CGF combined with bone filling materials, 2 received biological membrane and bone filling material, 5 received bone filling materials. Twenty-three cases had vital pulp without root canal therapy, 3 cases had root canal retrofilling, and 274 cases had postoperative root canal therapy. The follow-up period ranged from 6 months to 5 years. The overall success rate was 86.67%, survival rate was 96.67%, and failure rate was 3.33%. CONCLUSIONS: As an ideal method of replacing missing tooth defect, autotransplantation is simple, fast, effective, and biocompatible, which is worthy of wide application.

Key words: Autotransplantation of teeth, Clinical analysis, Curative effect evaluation