Surface characteristics of a novel hydroxyapatite-coated dental implant
Journal of Periodontal & Implant Science
;
: 59-63, 2012.
Article
in English
| WPRIM
| ID: wpr-135237
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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Titanium
/
X-Ray Diffraction
/
Bicuspid
/
Dental Implants
/
Wettability
/
Durapatite
/
Coated Materials, Biocompatible
/
Crystallins
/
Hydroxyapatites
/
Mandible
Limits:
Animals
Language:
English
Journal:
Journal of Periodontal & Implant Science
Year:
2012
Type:
Article
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