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Dental Implant Macro‐Design Features Can Impact the Dynamics of Osseointegration
Author(s) -
Vivan Cardoso Marcio,
Vandamme Katleen,
Chaudhari Amol,
De Rycker Judith,
Van Meerbeek Bart,
Naert Ignace,
Duyck Joke
Publication year - 2015
Publication title -
clinical implant dentistry and related research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.338
H-Index - 85
eISSN - 1708-8208
pISSN - 1523-0899
DOI - 10.1111/cid.12178
Subject(s) - osseointegration , implant , dentistry , dental implant , medicine , surgery
Purpose The purpose of this study was to compare the clinical performance of two dental implant types possessing a different macro‐design in the in vivo pig model. Materials and Methods Titanium Aadva TM implants ( GC , T okyo, J apan) were compared with OsseoSpeed TM implants ( A stra, M ölndal, S weden), with the Aadva implant displaying significant larger inter‐thread dimensions than the OsseoSpeed implant. Implants were installed in the parietal bone of 12 domestic pigs and left for healing for either 1 or 3 months. Implant osseointegration was evaluated by quantitative histology (bone volume relative to the tissue volume [ BV / TV ]; bone‐to‐implant contact [ BIC ]) for distinct implant regions (collar, body, total implant length) with specific implant thread features. The W ilcoxon– M ann– W hitney nonparametric test with α = 0.05 was performed. Results An inferior amount of bone enveloping the Aadva implant compared with the OsseoSpeed implant was observed, in particular at the implant body part with its considerable inter‐thread gaps ( p < .05). Concomitantly, the Aadva macro‐design negatively affected the amount of bone in direct contact with the implant for this specific implant part ( p < .05), and resulted in an overall impaired implant osseointegration at the initial healing stage (total implant length; 1‐month healing; p < .05). Conclusion Although the Aadva implant displayed a clinically acceptable level of osseointegration, the findings demonstrate that implant macro‐design features can impact the dynamics of implant osseointegration. Consideration of specific implant macro‐design features should be made relative to the biological and mechanical microenvironment.