Sutanto, Dahlia and Satari, Mieke Hemiawati and Hernowo, Bethy S. and Priosoeryanto, Bambang Pontjo and Septawendar, Rifki and Asri, Lie A.T.W. and Purwasasmita, Bambang Sunendar (2020) Geopolymer–carbonated Apatite Nanocomposites with Magnesium and Strontium Trace Elements for Dental Restorative Materials. Journal of the Korean Ceramic Society, 57 (5).
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Abstract
Geopolymer and carbonated apatite are potential materials for dental restoration. We reported the synthesis of geopolymer– carbonated apatite nanocomposite, highlighting the influence of trace elements in carbonated apatite toward mechanical, leachability and cytotoxicity properties. Various carbonated apatites were combined with metakaolin, followed by geopolymerization. The study revealed that with addition of Mg2+ and Sr2+, the geopolymer–carbonated apatite nanocomposites have the tendency to have lower mechanical properties. Geopolymer and geopolymer–carbonated apatite showed higher hardness, compressive strength, and modulus elasticity compared with geopolymer–carbonated apatite containing Mg2+ and/ or Sr2+. Nevertheless, all samples showed mechanical properties that could be applied as dental restoration materials. Leaching assay confirmed the release of Na+ in all samples, originating from unreacted alkali activator. The Na+ concentration decreased significantly after 96 h of total washing, with the lowest value of 1 ppm. Cytotoxicity test was evaluated toward mouse embryonic fibroblast cells, indicating that all samples were not toxic to cells.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Geopolymer · Carbonated apatite · Magnesium · Strontium · Dental restorative materials |
| Subjects: | R Medicine > RJ Pediatrics |
| Depositing User: | Perpustakaan Maranatha |
| Date Deposited: | 11 Oct 2021 22:21 |
| Last Modified: | 08 Nov 2021 15:13 |
| URI: | http://repository.maranatha.edu/id/eprint/27944 |
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