alexa Histomorphometry and Bone Mechanical Property Evolution Around Different Implant Systems at Early Healing Stages: An Experimental Study in Dogs


Research & Reviews: Journal of Dental Sciences

Author(s): Ryo Jimbo

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Purpose: Commercial implants differ at macro-, micro-, and nanolevels, which makes it difficult to distinguish their effect on osseointegration. The aim of this study was to evaluate the early integration of 5 commercially available implants (Astra OsseoSpeed, Straumann SLA, Intra-Lock Blossom Ossean, Nobel Active, and OsseoFix) by histomorphometry and nanoindentation. Materials and Methods: Implants were installed in the tibiae of 18 beagle dogs. Samples were retrieved at 1, 3, and 6 weeks (n ¼ 6 for each time point) and were histologically and nanomechanically evaluated. Results: The results presented that both time (P , 0.01) and implant system and time interaction (P , 0.02) significantly affected the bone-to-implant contact (BIC). At 1 week, the different groups presented statistically different outcomes. No significant changes in BIC were noted thereafter. There were no significant differences in rank elastic modulus (E) or in rank hardness (H) for time (E: P . 0.80; H: P . 0.75) or implant system (E: P . 0.90; H: P . 0.85). Conclusions: The effect of different implant designs on osseointegration was evident especially at early stages of bone healing. (Implant Dent 2013;0:1–8)

This article was published in IMPLANT DENTISTRY and referenced in Research & Reviews: Journal of Dental Sciences

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