Influence of fluorine content on the crystallization behavior of apatite-wollastonite glass-ceramics

Calver, Adam; Hill, Robert G.; Stamboulis, Artemis

doi:10.1023/b:jmsc.0000020038.79675.0f

Cited by 18 publications

(12 citation statements)

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“…This bioactive glass-ceramic material has superior mechanical strength comparable to human cortical bone [28]. Calver et al [29] observed that increasing of fluorine content in A/W glass also appears to promote the crystallization of apatite phase. On the other hand, Juhasz et al [30] observed that apatite/wollastonite/polyethylene composite (AWPEX) with 50 vol% PE is the most promising for use as an implant material.…”

Section: Introductionmentioning

confidence: 99%

Sol-gel bioactive glass-ceramics Part I: Calcium phosphate silicate/wollastonite glass-ceramics

et al. 2009

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Abstract:In this work we present experimental results about synthesis, structure evolution and in vitro bioactivity of new calcium phosphate silicate/wollastonite (CPS/W) glass-ceramics. The samples obtained were synthesized via polystep sol-gel process with different Ca/P+Si molar ratio (R). The structure of the materials obtained was studied by XRD, FTIR spectroscopy and SEM. XRD showed the presence of Ca 15 (PO 4 ) 2 (SiO 4 ) 6 , β-CaSiO 3 and α-CaSiO 3 for the sample with R=1.89 after thermal treatment at 1200°C/2h. The XRD results are in good agreement with FTIR analysis. SEM denotes that apatite formation can be observed after soaking in simulated body fluid (SBF). © Versita Warsaw and Springer-Verlag Berlin Heidelberg.

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Section: Introductionmentioning

confidence: 99%

Sol-gel bioactive glass-ceramics Part I: Calcium phosphate silicate/wollastonite glass-ceramics

et al. 2009

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“…Nonetheless, at present, the availability of high-resolution solid-state characterization techniques such as 17 O MAS-NMR coupled with dynamic nuclear polarization (DNP) and high field 19 F MAS-NMR could provide fast and accurate elucidation of oxygen and fluorine environments in the A-W GC; however, such work is yet to be published. Calver et al (2004) reported that modified Kokubo et al (1982) A-W glass with higher metal fluoride content (AW3, Table 2) resulted in a completely changed apatite crystallization behavior. Calver et al (2004) found that a base glass with the highest CaF2 content favored volume FAp nucleation and crystallization.…”

Section: Biomedical Applications Of Apatite Glass-ceramics Orthopedicsmentioning

confidence: 94%

“…Calver et al (2004) reported that modified Kokubo et al (1982) A-W glass with higher metal fluoride content (AW3, Table 2) resulted in a completely changed apatite crystallization behavior. Calver et al (2004) found that a base glass with the highest CaF2 content favored volume FAp nucleation and crystallization. Calver et al (2004) also found that A-W systems showed reduced Tg and FAp crystallization exotherms with increasing calcium fluoride content.…”

Section: Biomedical Applications Of Apatite Glass-ceramics Orthopedicsmentioning

confidence: 94%

“…Calver et al (2004) found that a base glass with the highest CaF2 content favored volume FAp nucleation and crystallization. Calver et al (2004) also found that A-W systems showed reduced Tg and FAp crystallization exotherms with increasing calcium fluoride content. Therefore, low calcium fluoride content in the original A-W system is actually suppressing crystallization of FAp.…”

Section: Biomedical Applications Of Apatite Glass-ceramics Orthopedicsmentioning

confidence: 97%

“…However, from a manufacturing point of view, a bulk crystallizing A-W material, such as proposed by Calver et al (2004), could provide a more cost-effective material. In vitro and in vivo bioactivity of the modified A-W system developed by Calver et al (2004) still needs to be established. The original A-W GC is currently manufactured by Nippon Electric Glass Co., Ltd. (Japan) (Montazerian and Zanotto, 2016).…”

Section: Biomedical Applications Of Apatite Glass-ceramics Orthopedicsmentioning

confidence: 99%

See 2 more Smart Citations

Apatite Glass-Ceramics: A Review

2017

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This article is a review of the published literature on apatite glass-ceramics (GCs). Topics covered include crystallization mechanisms of the various families of apatite GCs and an update on research and development on apatite GCs for applications in orthopedics, dentistry, optoelectronics, and nuclear waste management. Most apatite GCs crystallize through a homogenous nucleation and crystallization mechanism, which is aided by a prior liquid-liquid phase separation. Careful control of the base glass composition and heat-treatment conditions, which determine the nature and morphology of the crystal phases in the GC can produce GC materials with exceptional thermal, mechanical, optical, and biological properties. The GCs reviewed for orthopedic applications exhibit suitable mechanical properties and can chemically bond to bone and stimulate its regeneration. The most commercially successful apatite GCs are those developed for dental veneering. These materials exhibit excellent translucency and clinical esthetics and mimic the natural tooth mineral. Due to the ease of solid solution of the apatite lattice, rare earth doped apatite GCs are discussed for potential applications in optoelectronics and nuclear waste management. One of the drawbacks of the commercial apatite GCs used in orthopedics is the lack of resorbability; therefore, the review provides a direction for future research in the field.

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Biomaterials for Bone Tissue Engineering

Chen

2013

Emerging Trends in Cell and Gene Therapy

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Influence of fluorine content on the crystallization behavior of apatite-wollastonite glass-ceramics

Cited by 18 publications

References 11 publications

Sol-gel bioactive glass-ceramics Part I: Calcium phosphate silicate/wollastonite glass-ceramics

Sol-gel bioactive glass-ceramics Part I: Calcium phosphate silicate/wollastonite glass-ceramics

Apatite Glass-Ceramics: A Review

Biomaterials for Bone Tissue Engineering

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