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Chinese Journal of Dental Research
Chin J Dent Res 22 (2019), No. 3     24. Sep. 2019
Chin J Dent Res 22 (2019), No. 3  (24.09.2019)

Page 165-173, doi:10.3290/j.cjdr.a43110, PubMed:31508604


Changes of Microbial Community in Treated Peri-implantitis Sites: An Experimental Study in Beagle Dogs
Wu, Yu Wei / Zheng, Hui / Li, Xue Fen / Lu, Hui / Lu, Song He / Liu, Xu Hong / Zeng, Qiang / Chen, Feng / Lin, Jiu Xiang / Tang, Zhi Hui
Objective: To investigate the changes of the bacterial community in the oral environment of beagle dogs to gain insights on the possible causes of failed therapy in peri-implantitis.
Methods: Beagles were used as models for experimental peri-implantitis. Samples from peri-implant soft tissue (supramargin and submargin), ligature and contaminated surface of peri-implantitis sites were collected and analysed by sequencing the bacterial 16S rRNA gene.
Results: The residual microbial community from the curettes-treated implant surface contained a variety of microorganisms, including periodontal pathogens, which showed no changes in their composition and structure.
Conclusion: It is possible that the residual bacterial community remained unchanged and this was the cause of recurrent episodes of inflammation.

Keywords: peri-implantitis, microbial communities, peri-implant mucositis, peri-implant soft tissue, biofilm