Journal of Oral Science Research ›› 2021, Vol. 37 ›› Issue (4): 314-318.DOI: 10.13701/j.cnki.kqyxyj.2021.04.009

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Modification of Rat Model with Peri-implantitis

LI Xingjia1, CHEN Qixin2, YUAN Changyong2, WANG Penglai2*   

  1. 1. School of Stomatology, Xuzhou Medical University, Xuzhou 221004, China;
    2. Department of Oral Implantology, Affiliated Stomatological Hospital of Xuzhou Medical University, Xuzhou 221000, China
  • Received:2020-11-09 Published:2021-04-15

Abstract: Objective: To simplify the steps and shorten the time of reconstruction of rat peri-implantitis model. Methods: The maxillary first molars of 16 rats were extracted, and titanium implants were implanted one month later. After 4 weeks, silk thread ligation was used to induce inflammation and the rats were fed with sugar water. Two weeks later, the rats were sacrificed, the maxilla was taken X-rays for imaging analysis, bone tissue slices were made, and the gingival tissue around the implant was extracted for immunohistochemical analysis. Results: Two weeks after ligation, peri-implantitis was successfully induced. There was not only soft tissue inflammation around the implant, but also bone tissue resorption at various degrees. Conclusion: The model of rat peri-implantitis has been successfully constructed, with convenience and short modeling cycle.

Key words: peri-implantitis, rat, titanium implant, osseointegration