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   Offical Journal of The Academy of Osseointegration

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Volume 41 , Issue 5
September/October 2021

Pages 665Ė673

Influence of Different Implant Types on Bone Levels After Healing and Peri-implant Tissue Reactions Following Peri-implantitis: A Preclinical Study

Pietro Felice, MD, DDS, PhD/Caroline Bolle, DDS, PhD/Eric Schneck, DDS/Didier Fau, DVM, PhD/Guillaume NoŽl, DVM, dip Vet LAS/Marie-Paule Gustin, DDS, PhD/Brigitte Grosgogeat, DDS, PhD

DOI: 10.11607/prd.4636

This study evaluated the influence of different implant types on (1) radiographic marginal bone levels after healing and (2) radiographic and histomorphometric tissue levels and characteristics following ligature-induced peri-implantitis. Four implant types (Standard Plus, Straumann [S]; NobelReplace Tapered, Nobel Biocare [N]; In-Kone Universal, Global D [I]; and twinKon, Global D [T]) were randomly placed in the edentulous healed mandibular ridge of six dogs (T0), for a total of 57 implants placed. After 10 weeks, a peri-implantitis was ligature-induced (T1). After 12 weeks, biopsy samples were processed for histomorphometric analysis (T2). Standardized radiographs were taken at T0, T1, and T2 for imaging analysis. Statistical analysis was performed using mixed-effects linear modeling. After healing (T1), the radiographic marginal bone level was more coronal for implants I, T, and S compared to N. Following peri-implantitis (T2), the histologic marginal bone level was more coronal for implants I, T, and S compared to N, and for implants I and T compared to S. Also at T2, the radiographic marginal bone level was more coronal at implants I, T, and S compared to N. Implant type may influence bone remodeling during healing and bone loss during the early stages of experimental peri-implantitis.

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