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Quintessence Publishing: Journals: JOLA

 

The Journal of Oral Laser Applications

Edited by Prof Dr Andreas Moritz and Prof G. Lynn Powell

Official publication of the European Society for Oral Laser Applications

ISSN (print) 1473-7809 • ISSN (online) 1867-5611

Publication:
JOLA
Winter 2004
Volume 4 , Issue 4

Pages: 257-261
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Temperature Response of Permanent Teeth Bleached with a Blue LED System

de Fátima Zanirato Lizarelli, Rosane/Moriyama, Lílian Tan/Pelizon Pelino, José Eduardo/Bagnato, Vanderlei Salvador

Purpose: Bleaching procedures photoactivated by blue LED devices are commonly used. Since there are no scientific reports about pulp chamber temperature changes during blue LED use for bleaching agent activation, the purpose of this study is to quantify the intrapulpal temperature changes following irradiation at the enamel surface with a new blue LED system. Materials and Methods: Nine extracted permanent teeth (3 central maxillary incisors, 3 central mandibular incisors, 3 canines) were used. A high-precision thermocouple was inserted into the pulp chamber with a thermal conducting paste, and temperature changes were plotted. Results: The temperature increased by as much as 9°C, which would probably cause permanent pulpal damage. Conclusion: With the data obtained, it is possible to program the bleaching procedure accordingly to avoid thermal sensitivity and damage.

Keywords: LED, bleaching agent, human enamel, temperature response, photo activation

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