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Comparative Evaluation of Effectiveness of 35% and 20% Concentration of Hydrogen Peroxide Alone and in Combination
Pradnya Nagmode1, Vaishnavi Deshmukh1, Sathish Abraham1
1Department of Conservative Dentistry and Endodontics, SMBT Dental College and Hospital, Sangamner, Ahmednagar, Maharashtra, India.
Aim:
To evaluate the color change in human enamel bleached with two concentrations of hydrogen peroxide (35% and 20%) alone and in combination with pomegranate extract using a reflectance spectrophotometer.
Materials And Methods:
Forty extracted permanent maxillary incisors were randomly divided into four groups: Group 1a: 35% hydrogen peroxide alone, Group 1b: 35% hydrogen peroxide + pomegranate extract, Group 2a: 20% hydrogen peroxide alone, Group 2b: 20% hydrogen peroxide + pomegranate extract. Pomegranate extract was prepared from 1500 g of peeled white pomegranate blended with 25 ml distilled water and centrifuged at 2000 rpm for 2 minutes at 4°C. Teeth were artificially stained following Sulieman et al.'s protocol and immersed in respective bleaching agents for 20 minutes. Color change (ΔE) was measured using a reflectance spectrophotometer.
Results:
Groups using pomegranate extract with hydrogen peroxide exhibited significantly greater ΔE values, indicating enhanced bleaching efficacy compared to hydrogen peroxide alone.
Conclusion:
Hydrogen peroxide combined with pomegranate extract significantly improves tooth color change compared to hydrogen peroxide alone.
