Surface characteristics of a novel hydroxyapatite-coated dental implant

Ui Won Jung, Ji Wan Hwang, Da Yae Choi, Kyung Seok Hu, Mi Kyung Kwon, Seong Ho Choi, Hee Jin Kim

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Purpose: This study evaluated the surface characteristics and bond strength produced using a novel technique for coating hydroxyapatite (HA) onto titanium implants. Methods: HA was coated on the titanium implant surface using a supe -high-speed (SHS) blasting method with highly purified HA. The coating was performed at a low temperature, unlike conventional HA coating methods. Coating thickness was measured. The novel HA-coated disc was fabricated. X-ray diffraction analysis was performed directly on the disc to evaluate crystallinity. Four novel HA-coated discs and four resorbable blast medium (RBM) discs were prepared. Their surface roughnesses and areas were measured. Five puretitanium, RBM-treated, and novel HA-coated discs were prepared. Contact angle was measured. Two-way analysis of variance and the post-hoc Scheffe's test were used to analyze differences between the groups, with those with a probability of P<0.05 considered to be statistically significant. To evaluate exfoliation of the coating layer, 7 sites on the mandibles from 7 mongrel dogs were used. Other sites were used for another research project. In total, seven novel HA-coated implants were placed 2 months after extraction of premolars according to the manufacturer's instructions. The dogs were sacrificed 8 weeks after implant surgery. Implants were removed using a ratchet driver. The surface of the retrieved implants was evaluated microscopically. Results: A uniform HA coating layer was formed on the titanium implants with no deformation of the RBM titanium surface microtexture when an SHS blasting method was used. Conclusions: These HA-coated implants exhibited increased roughness, crystallinity, and wettability when compared with RBM implants.

Original languageEnglish
Pages (from-to)59-63
Number of pages5
JournalJournal of Periodontal and Implant Science
Volume42
Issue number2
DOIs
Publication statusPublished - 2012 Apr

All Science Journal Classification (ASJC) codes

  • Oral Surgery
  • Periodontics

Fingerprint Dive into the research topics of 'Surface characteristics of a novel hydroxyapatite-coated dental implant'. Together they form a unique fingerprint.

  • Cite this