## Abstract In previous studies a film of hydroxylapatite (HA) was coated onto the inner pore surfaces of reticulated alumina for bone substitutes with the use of a soβcalled thermal deposition method. In this process, the HA films must be sintered at high temperatures for a strong adhesion to the
The effect of glass-ceramic bone implant materials on thein vitro formation of hydroxyapatite
β Scribed by Blumenthal, N. C. ;Posner, A. S. ;Cosma, V. ;Gross, U.
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 429 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0021-9304
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β¦ Synopsis
The extracts of four glass-ceramic bone implant materials were investigated for dissolved material, for effects on in uifro formation of hydroxyapatite, and for surface morphology of glass-ceramic particles in scanning electron microscopy. In vitro leaching released substances that affected in uitro formation of hydroxyapatite, i.e., initiation time and growth of crystals.
Leaching also changed the surface morphology of the materials. The ability of the materials to bond to bone did not correlate with the inhibition of hydroxyapatite formation by the released substances. Surface morphology and other factors at present not yet known are probably involved in controlling the bonding to bone of these ceramics.
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