Surface and pulp chamber temperature rises during tooth bleacing using a diode laser: a study in vitro

MAM Sulieman, JS Rees, M Addy

Research output: Contribution to journalArticle (Academic Journal)

46 Citations (Scopus)

Abstract

Objective To measure the surface and pulp chamber temperature increases in vitro on upper and lower anterior teeth during a tooth whitening procedure using a diode laser. Method A thermocouple was used to measure the temperature increase on the surface of an extracted upper central incisor tooth. Pulp chamber temperature readings were made on upper and lower central incisors, lateral incisors and canines. A diode laser recommended for tooth bleaching was tested at three different power settings (1W, 2W, 3W). Temperature measurements were made with and without the bleaching agent present on the labial tooth surface. Results The increase in surface temperature readings ranged from 37°C (1W) to 86.3°C (3W) with no bleaching gel present. Pulp chamber temperature increases ranged from 4.3°C (1W) to 16°C (3W). The presence of the bleaching gel reduced temperature increases seen at the tooth surface and within the pulp. Conclusions The increase in the pulp chamber temperature with the laser used at 1-2W was below the critical temperature increase of 5.5°C thought to produce irreversible pulpal damage. However, a power setting of 3W produced a pulp chamber temperature increase above this threshold (16°C) and caution is advised when using this setting.
Translated title of the contributionSurface and pulp chamber temperature rises during tooth bleacing using a diode laser: a study in vitro
Original languageEnglish
Pages (from-to)631 - 634
Number of pages4
JournalBritish Dental Journal
Volume200 (11)
DOIs
Publication statusPublished - Jun 2006

Bibliographical note

Publisher: Nature Publishing Group

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