In vivo evaluation of dual acid-etched and grit-blasted/acid-etched implants with identical macrogeometry in high-density bone

Yohei Jinno, Ryo Jimbo, Nick Tovar, Hellen S. Teixeira, Lukasz Witek, Paulo G. Coelho

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: Based on the current evidence, the effect of implant macrogeometry has a significant influence on osseointegration. Thus, this study evaluated histomorphometrically and histologically the bone response to acid-etched in comparison to grit-blasted/acid-etched (GB) and machined control (C) surfaced implants possessing identical macrogeometry placed in high-density bone. Materials and Methods: Implant surface topography of the 3 different surfaced implants has previously been characterized. The macrogeometry of the implants were conical, and healing chambers were created in the cortical regions. The 3 groups were placed in the external mandibular body of adult male sheep (n = 5). After 6 weeks in vivo, all samples were retrieved for histologic observation and histomorphometry (eg, bone-to-implant contact [BIC] and bone area fraction occupancy [BAFO]). Results: No statistical difference was observed for BIC and for BAFO, although there was a tendency that the mean values for BAFO was higher for the textured surface groups. Conclusions: It is suggested that the effect of surface topography is minimal in high-density bone and osseointegration seemed to be macrogeometry dependent.

Original languageEnglish (US)
Pages (from-to)815-819
Number of pages5
JournalImplant dentistry
Volume26
Issue number6
DOIs
StatePublished - Dec 2017

Keywords

  • Biomechanical
  • Dental implants
  • Hybrid-healing pathway
  • Osseointegration
  • Surface

ASJC Scopus subject areas

  • Oral Surgery

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