Histological Observation of Peri-implant Soft Tissues to Different Implant Abutment Materials under Inflammatory Condition: a Study in Vivo

doi:10.13701/j.cnki.kqyxyj.2016.11.001

Abstract

Abstract: Objective: To observe the histological response of peri-implant soft tissues to different implant abutments materials with or without peri-implant mucotitis. Methods: The third and fourth premolars and the first molar of three beagle dogs were extracted and eight implants were placed into each dog after healing. Two months later, the titanium and zirconium healing abutments were connected, plaque index, gingival index and probing depth were recorded as the initial time. Then ligaments were placed around the neck of healing abutments to induce peri-implant mucotitis. Plaque index, gingival index and probing depth were recorded again. The soft tissues were harvested and histological observation was performed to evaluate the inflammatory cells infiltration around titanium and zirconium healing abutments. Results: There were no differences on plaque index and probing depth of soft tissues around titanium and zirconium healing abutments with peri-implantitis, but gingival index was significantly higher with peri-implantitis. The HE staining showed that the inflammatory cells were located in the soft tissues around healing abutments with peri-implantitis. The immunohistochemistry revealed that inflammatory cells were expressed at the basement memberane zone, soft tissues around titanium and zirconium healing abutments, and endothelial cells of vessels in the vicinity. Conclusion: Histological responses of peri-implant soft tissues to titanium and zirconium healing abutments were similar under inflammatory condition.

Key words: Dental implant, Abutment, Inflammatory cells

CLC Number:

R782.12

WANG Min, YANG Hui, WANG Yi-ning, XIA Hai-bin, ZOU Hai-xiao. Histological Observation of Peri-implant Soft Tissues to Different Implant Abutment Materials under Inflammatory Condition: a Study in Vivo[J]. Journal of Oral Science Research, 2016, 32(11): 1113-1116.

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