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- Title
Effects of experimental pastes containing surface pre-reacted glass ionomer fillers on inhibition of enamel demineralization.
- Authors
Keiki NAKAMURA; Hidenori HAMBA; Syozi NAKASHIMA; Alireza SADR; Toru NIKAIDO; Masakazu OIKAWA; Motohiro UO; Junji TAGAMI
- Abstract
This study aimed to evaluate the inhibitory effect of experimental pastes containing surface pre-reacted glass ionomer (S-PRG) fillers on enamel demineralization. Bovine blocks were treated twice a day for 4 days by 7 groups; experimental pastes containing 0-30 wt% S-PRG filler (S00, S01, S05, S10, and S30), deionized water (DW) as negative control, and NaF paste (MP) as positive control. The surfaces were demineralized by acetic acid for 3 days. Mineral loss (ML) was calculated by micro-computed X-ray tomography. The treated surface was finally investigated with scanning electron microscope (SEM) and micro-focused particle induced X-ray emission (micro-PIXE). S05, S10 and S30 demonstrated significantly lower ML than S00, S01 and DW (p<0.05). S10 showed the greatest inhibitory effect, which was significantly greater than MP. The S-PRG filler containing experimental pastes demonstrated a potential to inhibit enamel demineralization. Sr ion incorporation was confirmed on the enamel surface with the experimental pastes.
- Subjects
DENTAL glass ionomer cements; PASTE; TOOTH demineralization; DENTAL enamel; DEIONIZATION of water; SCANNING electron microscopy
- Publication
Dental Materials Journal, 2017, Vol 36, Issue 4, p482
- ISSN
0287-4547
- Publication type
Article
- DOI
10.4012/dmj.2016-303