## Abstract Canasite glass–ceramics were modified by either increasing the concentration of calcium in the glass, or by the addition of P~2~O~5~. Samples of these novel materials were placed in simulated body fluid (SBF), along with a control material (commercial canasite), for periods ranging from
Apatite formation on the surface of ceravital-type glass-ceramic in the body
✍ Scribed by Ohtsuki, C. ;Kushitani, H. ;Kokubo, T. ;Kotani, S. ;Yamamuro, T.
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 525 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0021-9304
No coin nor oath required. For personal study only.
✦ Synopsis
Previous studies on surface structural changes in vitro as well as in vivo of bioac-
IN T RODUC T ION
The authors have shown for glass-ceramic A-W and its families, that bioactive, i.e., bone-bonding, glasses and glass-ceramics form an apatite layer on their surfaces in the body, whereas nonbioactive glasses and glass-ceramics do not form the surface apatite Similar dependence of bioactivity on formation of the surface apatite layer also has been reported for Bioglass-type glas~es."'~ These findings indicate that the essential condition for glasses and glass-ceramics to bond to living bone is formation of the apatite layer on their surfaces in the body.
📜 SIMILAR VOLUMES
## Abstract Bioactive glass‐ceramic apatite‐wollastonite (A‐W) has been incorporated into polyethylene in particulate form to create new bioactive composites for potential maxillofacial applications. The effects of varying the volume fraction of glass‐ceramic A‐W filler and the glass‐ceramic A‐W pa
Wollastonite/tricalcium phosphate composites were prepared and immersed in SBF for various periods to investigate the apatite-formation mechanism on their surfaces. Surface morphologies and composition before and after immersion were analyzed by SEM and EDS technologies. The concentration changes of
## Abstract A biomimetic method was used to promote a bioactive surface on a cobalt base alloy (ASTM F‐75). The metallic substrates were alkali treated and some of the samples were subsequently heat treated. The treated samples were immersed in simulated body fluid (SBF) on granular particles of ei
## Abstract Bioactive titanium metal can be prepared by NaOH and heat treatments that present the metal with a graded bioactive surface layer of amorphous sodium titanate. This study used laser electrophoresis together with transmission electron microscopy (TEM) and energy‐dispersive X‐ray microana