Journal of Oral Science Research ›› 2023, Vol. 39 ›› Issue (8): 721-726.DOI: 10.13701/j.cnki.kqyxyj.2023.08.011

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Retrospective Analysis of Survival Rate and Related Factors of Implant Replantation at Previous Failed Site

CHEN Xinglin, CHEN Si, MA Wenjie, TONG Xin*.   

  1. Department of Dental Implantology, Nanjing Stomatological Hospital,Affiliated Hospital of Medical School, Nanjing University, Nanjing 210000, China
  • Received:2022-12-28 Published:2023-08-17

Abstract: Objective: To evaluate the clinical prognosis and related factors of failed implant replantation. Methods: According to the inclusion and exclusion criteria, patients who underwent implant replantation due to dental defect in a Grade-A dental hospital in Jiangsu from 2016.1 to 2021.6 were strictly screened. The patient's gender, age, systematic medical history, smoking status, implant site, implant system, implant length and diameter, bone increment or not, replantation time, first and second implantation time, and failure time and reason were recorded. Chi-square test and Cox regression were used to analyze the retention rate of replanted implants and the possible influencing factors. Results: A total of 224 patients and 234 implants were included in the study. Eleven implants failed secondly and the replantation retention rate was 95.3%. There were more early failures than late failures. Chi-square test and cox regression analysis showed that age and history of diabetes significantly affected the retention of replantation implants, and smoking patients had a higher risk of implant failure. Conclusion: Implant replantation can still obtain a high clinical survival rate. The patient's age, diabetes history, and smoking history are significant influencing factors.

Key words: dental implants, replantation, survival rate, influencing factors