Intentional replantation of periodontally involved hopeless teeth: a case series study.

Objectives: To explore the clinical effect, the healing modes, and the potential influence factors of intentional replantation for periodontally hopeless teeth in combination with regeneration techniques. Materials and methods: Intentional replantation was operated on forty-eight periodontally hopeless teeth from forty-eight patients. The clinical indexes and the X-ray films were recorded during the follow-up period of 18 months. The Wilcoxon signed-rank test or the paired T test was adopted to carry out the statistical analysis. Results: The overall survival rate at the ninth month was 95.8% and declined to 91.7% at the eighteenth month. The improved rate of the mobility was 89.1% at the ninth month and the ankylosis percentage was 77.3% at the eighteenth month. The survival rate and mobility-improved rate of anterior teeth were both better than that of posterior teeth. Probing depth and bone loss decreased while ginginval recession increased (P < 0.05). Smoking had an adverse effect on both mobility improvement and bone gain (P < 0.05). Conclusions: Intentional replantation for periodontally hopeless teeth could achieve favorable outcomes through a reasonable healing mode of tooth ankylosis. Strict control of infection and smoking could improve the success rate of this procedure. Clinical relevance: To provide additional treatment for allowance of flexible options when patients and dentists are faced with periodontally hopeless teeth. [ABSTRACT FROM AUTHOR]