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

  • Jiayu Zhang
  • Ning Luo
  • Di Miao
  • Xuan Ying
  • Yue ChenEmail author
Original Article



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.


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).


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.


Intentional replantation Periodontally hopeless teeth Mobility Tooth ankylosis Smoking 



The authors acknowledged the Department of Periodontics, College of Stomatology, Xi’an Jiaotong University, for providing research material.


The work was supported by the New Clinical Techniques of Hospital of Stomatology, Xi’an Jiaotong University (xjkqxjs2015-06), the Science and Technology Project of Xi’an (2016051SF/YX07), and the Youth Scientific Research Fund of Hospital of Stomatology, Xi’an Jiaotong University.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

The ethics committee of Xi’an Jiao Tong University approved this study ([2016] [002]).All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee.

Informed consent

Informed consent was obtained from all individual participants included in the study.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Jiayu Zhang
    • 1
    • 2
  • Ning Luo
    • 1
    • 2
  • Di Miao
    • 1
    • 2
  • Xuan Ying
    • 1
    • 2
  • Yue Chen
    • 1
    • 2
    Email author
  1. 1.Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of StomatologyXi’an Jiaotong UniversityXi’anPeople’s Republic of China
  2. 2.Department of Periodontology, College of StomatologyXi’an Jiaotong UniversityXi’anPeople’s Republic of China

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