Aust Dent J. 2022 Feb 28. doi: 10.1111/adj.12908. Online ahead of print.
ABSTRACT
BACKGROUND: To investigate the effect of three different surface treatments on the microhardness and color change of artificial enamel lesions.
MATERIALS AND METHODS: One hundred bovine teeth were randomly assigned into four groups. Artificial enamel lesions were created using demineralizing solution for all groups except the sound enamel group. Different surface treatments were then performed G1: resin-infiltrant; G2: Casein phosphopeptide-amorphous calcium phosphate (CPP-ACP); G3: artificial saliva; G4: Sound Enamel. Each group was subdivided into three subgroups, where each subgroup was subjected to a different testing method. Subgroup 1: surface microhardness; subgroup 2: cross-sectional microhardness; subgroup 3: color measurement. Statistical analysis was performed by ANOVA, followed by Tukey’s post-hoc test.
RESULTS: Sound enamel group recorded the highest surface and cross-sectional microhardness results. No significant difference was found between the resin-infiltrant group and CPP-ACP regarding surface and cross-sectional microhardness at different lesion depths. Resin-infiltrant group showed the least color change (∆E) results compared to the other groups.
CONCLUSION: Resin-infiltrant can effectively enhance surface microhardness and enamel resistance to demineralization, additionally, reduce the staining susceptibility of white spot lesions (WSLs) after treatment. CPP-ACP application for four weeks seems to improve surface microhardness; however, has a limited effect in resisting staining of WSLs after treatment. © 2022 Australian Dental Association.
PMID:35224731 | DOI:10.1111/adj.12908
