Early bone response to machined, sandblasting acid etching (SLA) and novel surface-functionalization (SLAffinity) titanium implants: Characterization, biomechanical analysis and histological evaluation in pigs

Hsi Jen Chiang, Heng Jui Hsu, Pei Wen Peng, Ching Zong Wu, Keng Liang Ou, Han Yi Cheng, Christopher J. Walinski, Erwan Sugiatno

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The purpose of the present study was to examine early tissue response and osseointegration in the animal model. The surface morphologies of SLAffinity were characterized using scanning electron microscopy and atomic force microscopy. The microstructures were examined by X-ray diffraction, and hardness was measured by nanoindentation. Moreover, the safety and toxicity properties were evaluated using computer-aided programs and cell cytotoxicity assays. In the animal model, implants were installed in the mandibular canine-premolar area of 12 miniature pigs. Each pig received three implants: machine, sandblasted, large grit, acid-etched, and SLAffinity-treated implants. The results showed that surface treatment did affect bone-to-implant contact (BIC) significantly. At 3 weeks, the SLAffinity-treated implants were found to present significantly higher BIC values than the untreated implants. The SLAffinity treatments enhanced osseointegration significantly, especially at early stages of bone tissue healing. As described above, the results of the present study demonstrate that the SLAffinity treatment is a reliable surface modification method.

Original languageEnglish
Pages (from-to)397-405
Number of pages9
JournalJournal of Biomedical Materials Research - Part A
Volume104
Issue number2
DOIs
Publication statusPublished - Feb 1 2016

Keywords

  • dental implant
  • early tissue response
  • nano/microporous surface treatment
  • osseointegration

ASJC Scopus subject areas

  • Biomedical Engineering
  • Biomaterials
  • Ceramics and Composites
  • Metals and Alloys

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