Title |
In Vitro Evaluation of the Efficacy of Different Over-the-Counter Products on Tooth Whitening
|
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Published in |
Brazilian Dental Journal, August 2015
|
DOI | 10.1590/0103-64402013x0111 |
Pubmed ID | |
Authors |
Muhammet Karadas, Zeynep Yesil Duymus |
Abstract |
This in vitro study evaluated the whitening effect of four different over-the-counter products compared with a 10% carbamide peroxide (CP) bleaching gel. Specimens obtained from bovine incisors were stained in a tea solution and randomly divided into six groups according to the product used (n=10): CT: conventional toothpaste (negative control); CWT: Crest 3D White toothpaste; CWR: Crest 3D White mouth rinse; CWS: Crest 3D White strips; DW: Dazzling White (paint-on gel); and OP: Opalescence PF 10% CP (at-home bleaching gel, positive control). Over-the-counter products and 10% CP were used according to the manufacturer's recommendations. Color measurements were performed according to the CIELab system using spectrophotometer after staining, and after 4 and 8 weeks of the treatment procedure. The ∆E, ∆L, ∆a, and ∆b values were calculated. The data obtained were analyzed by repeated-measures ANOVA. Tukey's test for multiple comparisons was applied (p<0.05). All groups, except CWT, were effective in tooth whitening in comparison with conventional toothpaste. There was no significant difference in tooth whitening between CWT and CT (p=0.93). CWS, DW and OP groups presented significantly higher color changes than the CWR group. DW and CWS showed similar tooth whitening to OP. |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 50 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Master | 9 | 18% |
Student > Bachelor | 8 | 16% |
Researcher | 4 | 8% |
Professor > Associate Professor | 4 | 8% |
Student > Doctoral Student | 2 | 4% |
Other | 4 | 8% |
Unknown | 19 | 38% |
Readers by discipline | Count | As % |
---|---|---|
Medicine and Dentistry | 19 | 38% |
Pharmacology, Toxicology and Pharmaceutical Science | 1 | 2% |
Biochemistry, Genetics and Molecular Biology | 1 | 2% |
Psychology | 1 | 2% |
Agricultural and Biological Sciences | 1 | 2% |
Other | 2 | 4% |
Unknown | 25 | 50% |