Response of Human Pulps to Different In-Office Bleaching Techniques: Preliminary Findings

This study evaluated a whitening effect and the likely side effect (tooth sensitivity and pulp response) of human teeth subjected to different in-office bleaching (IOB) techniques and materials, mainly the presence of calcium in the IOB materials. A calcium-free (CF) and a calcium-containing (CC) 35...

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Published in:Brazilian dental journal 2015-06, Vol.26 (3), p.242-248
Main Authors: Roderjan, Douglas Augusto, Stanislawczuk, Rodrigo, Hebling, Josimeri, Costa, Carlos Alberto de Souza, Reis, Alessandra, Loguercio, Alessandro D.
Format: Article
Language:English
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Summary:This study evaluated a whitening effect and the likely side effect (tooth sensitivity and pulp response) of human teeth subjected to different in-office bleaching (IOB) techniques and materials, mainly the presence of calcium in the IOB materials. A calcium-free (CF) and a calcium-containing (CC) 35% hydrogen peroxide (HP) gels were evaluated. The CF was refreshed every 15 minutes, three times (CF 3-15) or in a single 45-min application (CF 1-45) at one bleaching appointment. The CC was used only in a single 45-min application (CC 1-45). Each technique was applied in 5 mandibular incisors scheduled for extraction for different patients. In control group, no tooth bleaching was performed. The tooth colour (TC) and tooth sensitivity (TS) were recorded at baseline and after IOB. The teeth were extracted 2 days after the application of IOB and subjected to histological analysis. The data was submitted to appropriate statistical analysis (α=0.05). The changes of TC were similar between groups and statistically different from the control (p
ISSN:0103-6440
0103-6440
DOI:10.1590/0103-6440201302282