Comparative Analysis of Whitening Outcomes of Over-the-Counter Toothpastes: An In Vitro Study

被引：0
作者：
Islam, Md Sofiqul [1 ]
Padmanabhan, Vivek [2 ]
Shanati, Kamar Ali [1 ]
Naser, Ahmed Malalah [1 ]
Hashim, Nada Tawfig [3 ]
Smriti Aryal, A. C. [4 ]
机构：
[1] RAK Med & Hlth Sci Univ, RAK Coll Dent Sci, Dept Operat Dent, POB 12973, Ras Al Khaymah, U Arab Emirates
[2] RAK Med & Hlth Sci Univ, RAK Coll Dent Sci, Dept Pediat Dent, POB 12973, Ras Al Khaymah, U Arab Emirates
[3] RAK Med & Hlth Sci Univ, RAK Coll Dent Sci, Dept Periodontol, POB 12973, Ras Al Khaymah, U Arab Emirates
[4] Univ Sharjah, Coll Dent Med, Dept Oral & Craniofacial Hlth Sci, POB 27272, Sharjah, U Arab Emirates
来源：
DENTISTRY JOURNAL | 2025年 / 13卷 / 02期
关键词：
activated charcoal; blue covarine; carbamide peroxide; CIELab; hydrogen peroxide; sodium tripolyphosphate; staining-brushing cycles; teeth whitening; titanium dioxide; COLOR; TEETH; SATISFACTION; PERCEPTION;
D O I：
10.3390/dj13020045
中图分类号：
R78 [口腔科学];
学科分类号：
1003 ;
摘要：
Background/Objectives: Whiter teeth are widely accepted as the most beautiful. With the growing demand for whiter teeth, several manufacturers have launched different brands of whitening toothpaste claiming to be effective in removing tooth stains and whitening teeth. The objective of this in vitro study was to evaluate and compare the whitening effect of eight over-the-counter available toothpastes by measuring the changes in color using a digital colorimeter in a simulated staining-brushing cycle model. Methods: A total of 32 extracted bovine enamel were polished with 1000-2000 grit SIC paper and immersed in a tea staining solution for 30 min at 37 degrees C to create extrinsic staining. The specimens were randomly divided into eight groups (n = 4) and subjected to a staining-brushing cycle for 2 weeks. During this period, the specimens were stained for 5 min twice, brushed for 2 min twice per day, and immersed in artificial saliva for the remaining time. The colors of the enamel surfaces L*, a*, and b* were recorded, and the color difference (Delta E) was measured before the treatment and after 1 and 2 weeks of the staining-brushing cycle. Results: The repeated measures showed a significant reduction of (Delta E) after 1 week of the staining-brushing cycle in all eight experimental groups (p < 0.05). The (Delta E) was significantly reduced after the second week of the staining-brushing cycle in groups 1, 3, and 5 (p < 0.05). However, it was insignificant in groups 2, 6, 7, and 8 (p > 0.05). Among the tested materials, group 1 showed the highest and group 8 showed the lowest teeth-whitening effects. Conclusions: The over-the-counter toothpaste used in this study showed effective teeth-whitening. Charcoal-based toothpaste showed the highest efficiency in teeth whitening.
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页数：12
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