Version 1
: Received: 7 April 2020 / Approved: 8 April 2020 / Online: 8 April 2020 (11:58:15 CEST)
Version 2
: Received: 3 May 2020 / Approved: 5 May 2020 / Online: 5 May 2020 (04:22:41 CEST)
Kaga, N.; Nagano-Takebe, F.; Nezu, T.; Matsuura, T.; Endo, K.; Kaga, M. Protective Effects of GIC and S-PRG Filler Restoratives on Demineralization of Bovine Enamel in Lactic Acid Solution. Materials2020, 13, 2140.
Kaga, N.; Nagano-Takebe, F.; Nezu, T.; Matsuura, T.; Endo, K.; Kaga, M. Protective Effects of GIC and S-PRG Filler Restoratives on Demineralization of Bovine Enamel in Lactic Acid Solution. Materials 2020, 13, 2140.
Kaga, N.; Nagano-Takebe, F.; Nezu, T.; Matsuura, T.; Endo, K.; Kaga, M. Protective Effects of GIC and S-PRG Filler Restoratives on Demineralization of Bovine Enamel in Lactic Acid Solution. Materials2020, 13, 2140.
Kaga, N.; Nagano-Takebe, F.; Nezu, T.; Matsuura, T.; Endo, K.; Kaga, M. Protective Effects of GIC and S-PRG Filler Restoratives on Demineralization of Bovine Enamel in Lactic Acid Solution. Materials 2020, 13, 2140.
Abstract
We investigated the protective effects of glass ionomer cement (GIC) and surface pre-reacted glass ionomer (S-PRG) fillers used as dental restorative materials on the demineralization of bovine enamel during the incubation in a lactic acid solution with pH = 4.0 conducted for 6 d at a temperature of 37 °C. Scanning electron microscopy images of the specimen surfaces from the group containing only enamel blocks revealed the presence of apparent enamel prism peripheries after 6 d of treatment. The mineral was etched from the enamel surface, and a large number of Ca ions were detected in solution. In contrast, the enamel blocks incubated together with discs of GIC or S-PRG fillers did not exhibit demineralized surfaces, owing to the neutralization of the acid solution by the fillers within the first 3 h of the incubation process. The observed pH neutralization effect was attributed to the release of different ions from the fillers and could be utilized for suppressing the progression of caries.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.