AI Article Synopsis
- - The study aimed to evaluate the microhardness of enamel treated with two different pH bleaching agents and the impact of fluoride therapy before and after bleaching treatments.
- - Eighty bovine incisors were split into eight groups to test various combinations of bleaching agents and fluoride treatments, with hardness measured at three intervals and assessed using statistical analysis.
- - Results indicated that Pola Office bleaching resulted in the greatest enamel softening, while applying 2% NaF gel afterward effectively restored some enamel hardness, although the fluoride treatment after Pola Office+ had minimal benefits.
Article Abstract
Objective: To assess microhardness (VH) of enamel treated with two in-office bleaching agents with different pH and to study the effect of post- and prebleaching fluoride therapy.
Materials And Methods: Eighty bovine incisors were divided into eight groups: G1-Unbleached group; G2-2% NaF; G3-Pola Office (pH = 3.8); G4-Pola Office+ (pH = 7); G5-Pola Office followed by 2% NaF; G6-2% NaF followed by Pola Office; G7-Pola Office+ followed by 2% NaF; G8-2% NaF followed by Pola Office+. Bleaching was conducted 3x with 1-week intervals (T1/T7/T14). Specimens were kept in artificial saliva. VH was measured at T1, T7, and T14. Data were analyzed using repeated measure ANOVA. urface morphology was assessed using scanning electron microscopy.
Result: There was no significant difference among the groups at T1. No significant difference was found between G3 and G4 at all intervals. 2% NaF (G5/G6 vs. G3) significantly prevented softening at T7 and T14. Some nonsignificant hardening was observed for 2% NaF for G7/G8 vs. G4. At T14, G3 showed the lowest VH values. G5 showed higher VH values compared to other groups apart from G6-G7. No relationship between bleaching protocols and surface morphology was observed.
Conclusion: Pola Office caused the most softening. 2% NaF gel application after Pola Office bleaching was effective in recovering enamel hardness. Fluoride application after Pola Office+ bleaching provided little benefit.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10497361 | PMC |
| http://dx.doi.org/10.1155/2023/1041889 | DOI Listing |
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Article Synopsis
- - The study aimed to evaluate the microhardness of enamel treated with two different pH bleaching agents and the impact of fluoride therapy before and after bleaching treatments.
- - Eighty bovine incisors were split into eight groups to test various combinations of bleaching agents and fluoride treatments, with hardness measured at three intervals and assessed using statistical analysis.
- - Results indicated that Pola Office bleaching resulted in the greatest enamel softening, while applying 2% NaF gel afterward effectively restored some enamel hardness, although the fluoride treatment after Pola Office+ had minimal benefits.
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