In vitro remineralization of primary teeth with a mineralization-promoting peptide containing dental varnish
- PMID: 32901695
- PMCID: PMC7480669
- DOI: 10.1590/1678-7757-2020-0259
In vitro remineralization of primary teeth with a mineralization-promoting peptide containing dental varnish
Abstract
Mineralization-promoting peptides are attractive candidates for new remineralization systems. In previous studies, peptides have been applied as aqueous solutions, which is not a clinically relevant form.
Objective: This study aims to investigate the efficiency of a mineralization-promoting peptide, applied in varnish, on remineralizing artificial caries on primary teeth.
Methodology: 55 primary molars were collected. Specimens were immersed in a demineralizing solution for 7 days and then, divided into 7 groups: Baseline: No-remineralization, Placebo: Blank colophony, F: Colophony 5% fluoride, P: Colophony 10% peptide, P+F: Colophony 5% fluoride and 10% peptide, Embrace: Embrace™ varnish, Durashield: Durashield™ varnish. A mixture of 35% w/v colophony varnishes were prepared in ethanol and applied accordingly. Specimens were immersed in a remineralization solution for 4 weeks and it was evaluated using PLM and SEM. Lesion depth reduction was examined by one-way ANOVA.
Results: There was no significant difference in mean lesion depths between baseline (147.04 ± 10.18 μm) and placebo groups (139.73 ± 14.92 μm), between F (120.95 ± 12.23 μm) and Durashield (113.47 ± 14.36 μm) groups and between P (81.79 ± 23.15 μm) and Embrace (90.26 ± 17.72 μm) groups. Lesion depth for the P+F group (66.95±10.59 μm) was significantly higher compared to all other groups. All groups contained samples with subsurface demineralized regions. Number of subsurface demineralized regions were higher in fluoride-containing groups.
Conclusions: We conclude that the mineralization-promoting peptide (MPP3) is effective in this in vitro study and the peptide shows benefits over fluoride as it yields less subsurface demineralized regions.
Conflict of interest statement
Disclosure statement
The authors declare no conflict of interest
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