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RESEARCH ARTICLE
Year : 2022  |  Volume : 12  |  Issue : 3  |  Page : 100-106

Color change after tooth bleaching with ozone and 10% ozonized carbamide peroxide for in-office use


Faculdade São Leopoldo Mandic, Campinas, São Paulo, Brazil

Correspondence Address:
Roberta Tarkany Basting
Faculdade São Leopoldo Mandic, Campinas, São Paulo
Brazil
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2045-9912.330693

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There is a constant search for bleaching treatments that can offer greater safety with fewer adverse effects, especially in the techniques performed in the office, which usually employ hydrogen peroxide in high concentrations (35% to 40%) that are not recommended by some international control agencies. This in vitro study evaluated the color change after tooth bleaching with the use of ozone and a 10% ozonized carbamide peroxide bleaching treatment for in-office use. Thirty molars were allocated (n = 10): three applications of ozone (1 hour every 3 days); three applications of 10% ozonized carbamide peroxide (1 hour every 3 days); 10% carbamide peroxide agent (8 hours a day for 7 days). The teeth were mounted on a plaster model to simulate the dental arch, and trays made of silicone were used for the application of the bleaching agents and to allow ozone to enter through. The ozone concentration used was 60 μg/mL, with an oxygen flow of 0.25 L/min. The values of color change showed no significant differences among treatments. The variations in the parameters over time, as well as the values of ΔEab, ΔE00, and WID, showed that there was no significant difference among the three treatments. The use of ozone and 10% ozonized carbamide peroxide for in-office use was effective for tooth bleaching with clinically perceptible and acceptable color alterations. The study was approved on September 10, 2019 by the São Leopoldo Mandic Ethics Research Committee (CAAE No. 17711719.4.0000.5374).


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