Surface characteristics of a novel hydroxyapatite-coated dental implant.
10.5051/jpis.2012.42.2.59
- Author:
Ui Won JUNG
1
;
Ji Wan HWANG
;
Da Yae CHOI
;
Kyung Seok HU
;
Mi Kyung KWON
;
Seong Ho CHOI
;
Hee Jin KIM
Author Information
1. Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
Biocompatible coated materials;
Dental implants;
Hydroxyapatites;
Titanium
- MeSH:
Animals;
Bicuspid;
Coated Materials, Biocompatible;
Crystallins;
Dental Implants;
Dogs;
Durapatite;
Hydroxyapatites;
Mandible;
Titanium;
Wettability;
X-Ray Diffraction
- From:Journal of Periodontal & Implant Science
2012;42(2):59-63
- CountryRepublic of Korea
- Language:English
-
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 super-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.
