NDLI: Characteristics of glass ionomer cements composed of glass powders in CaO–SrO–ZnO–SiO$_{2}$ system prepared by two different synthetic routes

Content Provider	Springer Nature Link
Author	Kim, Ill Yong Ohtsuki, Chikara Coughlan, Aisling Placek, Lana Wren, Anthony W. Towler, Mark R.
Copyright Year	2013
Abstract	Glass ionomer cements (GICs) are composed of an acid degradable glass, polyacrylic acid and water. Sol–gel processing to prepare the glass phase has certain advantages, such as the ability to employ lower synthesis temperatures than melt quenching and glasses that are reported to have higher purity. A previous study reported the effects of glass synthesis route on GIC fabrication. However, in that study, the sol–gel derived glass exhibited a reduced concentration of cations. This study investigates increasing the cation content of a sol–gel derived glass, 12CaO·4SrO·36ZnO·48SiO$_{2}$ (molar ratio) by heating before aging to reduce dissolution of cations. This glass was prepared by both sol–gel and melt-quenched routes. GICs were subsequently prepared using both glasses. The resultant cement based on the sol–gel derived glass had a shorter working time than the cement based on the melt-quenched one. Contrary to this, setting time was considerably longer for the cement based on the sol–gel derived glass than for the cement based on the melt-quenched one. The cements based on the sol–gel derived glass were stronger in both compression and biaxial flexure than the cements prepared from the melt-quenched glass. The differences in setting and mechanical properties were associated with both cation content in the glass phase and the different surface area of the resultant cements.
Starting Page	2677
Ending Page	2682
Page Count	6
File Format	PDF
ISSN	09574530
Journal	Journal of Materials Science: Materials in Medicine
Volume Number	24
Issue Number	12
e-ISSN	15734838
Language	English
Publisher	Springer US
Publisher Date	2013-08-07
Publisher Place	Boston
Access Restriction	Subscribed
Subject Keyword	Biomaterials Polymer Sciences Ceramics, Glass, Composites, Natural Methods Metallic Materials Characterization and Evaluation of Materials Surfaces and Interfaces, Thin Films
Content Type	Text
Resource Type	Article
Subject	Biomaterials Biophysics Bioengineering Biomedical Engineering

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The role of Sr$^{2+}$ on the structure and reactivity of SrO–CaO–ZnO–SiO$_{2}$ ionomer glasses

Fabrication of spherical CaO–SrO–ZnO–SiO$_{2}$ particles by sol–gel processing

Characteristics of glass ionomer cements composed of glass powders in CaO-SrO-ZnO-SiO2 system prepared by two different synthetic routes.

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In vitro microhardness of glass ionomer cements

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Antibacterial activity of four glass ionomer cements used in atraumatic restorative treatment

Characteristics of glass ionomer cements composed of glass powders in CaO–SrO–ZnO–SiO$_{2}$ system prepared by two different synthetic routes

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