Effectiveness of sodium bicarbonate combined with hydrogen peroxide and CPP-ACPF in whitening and microhardness of enamel

Ahrari, F. and Hasanzadeh, N. and Rajabi, O. and Forouzannejad, Z. (2017) Effectiveness of sodium bicarbonate combined with hydrogen peroxide and CPP-ACPF in whitening and microhardness of enamel. Journal of Clinical and Experimental Dentistry, 9 (3). e344-e350.

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Abstract

Background: This study investigated the effects of sodium bicarbonate (NaHCO3) combined with 1.5 hydrogen peroxide (H2O2) and casein phosphopeptide amorphous calcium phosphate fluoride (CPP-ACPF) on color and microhardness of enamel. Material and Methods: Seventy-five bovine incisors were immersed in a tea solution for 7.5 days. The specimens were randomly divided into five groups according to the whitening agent applied: 1) 94 NaHCO3, 2) a blend of 94 NaHCO3 and CPP-ACPF, 3) a blend of 94 NaHCO3 and 1.5 H2O2, 4) a blend of 94 NaHCO3, 1.5 H2O2 and CPP-ACPF, 5) control. The whitening procedure was performed for 10 times over 10 days. At each day, the buccal surfaces were covered with whitening agents for 5 minutes and then brushed for 30 seconds. After the 10 days, the teeth were again immersed in a tea solution for 10 minutes. Color assessment was performed at baseline (T1), after the first staining process (T2), after the whitening procedure (T3), and after the second staining process (T4). Finally, the specimens were subjected to microhardness test. Results: There was a statistically significant difference in the color change between T2 and T3 stages among the study groups (p<0.05), with the greatest improvement observed in group 4. Microhardness was significantly greater in groups 2 and 4, as compared to the other groups (p < 0.05). Conclusions: The combination of 94 NaHCO3, 1.5 H2O2 and CPP-ACPF was effective in improving color and microhardness of teeth with extrinsic stains and could be recommended in the clinical situation. © Medicina Oral S. L. C.I.F. B 96689336.

Item Type: Article
Additional Information: Cited By :2 Export Date: 16 February 2020 Correspondence Address: Ahrari, F.; Dental Research Center, School of Dentistry, Mashhad University of Medical SciencesIran; email: Farzaneh.Ahrari@gmail.com
Uncontrolled Keywords: Amorphous calcium phosphate Casein phosphopeptide CPP-ACP Hydrogen peroxide Microhardness Sodium bicarbonate Spectrophotometry Tooth color Tooth whitening
Subjects: WU Dentistry. Oral surgery
Divisions: Mashhad University of Medical Sciences
Depositing User: mr lib3 lib3
Date Deposited: 18 May 2020 05:02
Last Modified: 18 May 2020 05:02
URI: http://eprints.mums.ac.ir/id/eprint/16732

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