Long-term observation for osseointegriation of calcium 'phosphate sol-gel coating on Ti-6Al-4V implants / 中国医学科学杂志(英文版)
Chinese Medical Sciences Journal
; (4): 183-186, 2007.
Article
in En
| WPRIM
| ID: wpr-243532
Responsible library:
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ABSTRACT
<p><b>OBJECTIVE</b>To observe the long-term impact of calcium phosphate (CaP) sol-gel coating on bone growth around porous-surfaced implant.</p><p><b>METHODS</b>The porous-surfaced Ti-6Al-4V implants were prepared with the addition of a thin film of CaP sol-gel coating, and implanted into the tibiae of 8 rabbits, each with two implants. Implanted sites were allowed to heal for 2, 8, 12, and 24 weeks, after which specimens were obtained for scanning electron microscope analysis using the freeze-fracture technique.</p><p><b>RESULTS</b>The sol-gel coated implants recovered by freeze-fracture technique showed extensive bone growth from the endosteum along the implant surface. The bone was in direct contact with the CaP layer. The cement line-like layer was clearly demonstrated to be an intervening electron dense afibrillar layer between the CaP coat and the overlying newly deposited bone. The stability and osseointegration of the porous-surfaced implants seemed not to be affected by the osteoclastic resorption of CaP layer occurred during 24 weeks of healing.</p><p><b>CONCLUSION</b>Based on the findings in the long-term observation, the addition of a thin layer of CaP promotes an extensive osseointegrated interface between the porous-surfaced Ti-6Al-4V implants and the newly deposited bone.</p>
Full text:
1
Index:
WPRIM
Main subject:
Prostheses and Implants
/
Titanium
/
Calcium Phosphates
/
Microscopy, Electron, Scanning
/
Osseointegration
/
Freeze Fracturing
/
Gels
/
Metabolism
Limits:
Animals
Language:
En
Journal:
Chinese Medical Sciences Journal
Year:
2007
Type:
Article