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Quintessence Publishing: Journals: QI
Quintessence International

Edited by Eli Eliav

ISSN 0033-6572 (print) • ISSN 1936-7163 (online)

October 2008
Volume 39 , Issue 9

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The effect of a mild increase in temperature on tooth bleaching

M. Perez Davidi, DMD/Ala Hadad/Ervin I. Weiss, DMD/Abraham Domb, PhD/Boaz Mizrahi/Nir Sterer, DMD, PhD

Pages: 771775
PMID: 19093051

Objective: To evaluate the effect of temperature on external tooth bleaching. Method and Materials: Human molars and premolars were internally stained and assessed using a standardized tea solution. The mesial aspects of the teeth were assigned to the treatment group (bleaching at 45C), and the distal aspects of the teeth were assigned to the control group (bleaching at 37C). An electronic chromometer with a tristimulus color analyzer was used to measure color change. The mean changes in the values of L*, a*, and b* from baseline to posttreatment were recorded, as were the overall color differences of the specimens in each group (DE*). Results: Increasing the temperature to 45C significantly (P < .05) increased the bleaching efficacy and reduced the time needed to gain a lighter tooth shade. Conclusion: A controlled increase in the temperature of the bleaching agent might be useful in achieving better tooth bleaching in a shorter period of time. (Quintessence Int 2008;39:771775)

Key words: at-home tray vital bleaching, bleaching, carbamide peroxide, chromometer, hydrogen peroxide, power bleach, thermocatalytic bleach, tooth whitening, vital bleach

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