Histopathological Features of Dental Pulp Tissue from Bleached Mandibular Incisors

Mandibular incisors scheduled for extraction were subjected or not to three 15-minute applications of a 35% hydrogen peroxide gel. Two days thereafter, bleaching effectiveness (according to a value-oriented shade guide) was evaluated, and histological analysis of pulp tissue was performed. Immediate...

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Bibliographic Details
Published in:Journal of materials science and engineering. A 2014-06, Vol.4 (6A)
Main Authors: Roderjan, Douglas Augusto, Stanislawczuk, Rodrigo, Hebling, Josimeri, Costa, Carlos Alberto da Souza, Soares, Diana Gabriela, Reis, Alessandra, Loguercio, Alessandro Dourado
Format: Article
Language:English
Subjects:
Alterations
Bleaching
Color
Dentin
Deposition
Hydrogen peroxide
Recording
Teeth
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Summary:Mandibular incisors scheduled for extraction were subjected or not to three 15-minute applications of a 35% hydrogen peroxide gel. Two days thereafter, bleaching effectiveness (according to a value-oriented shade guide) was evaluated, and histological analysis of pulp tissue was performed. Immediately and two days after bleaching, tooth sensitivity (TS) experience was recorded. Bleached teeth of both groups showed significant color improvement (Mann-Whitney; p < 0.05). However, these teeth presented significant pulp alterations when compared with non-bleached teeth (Mann-Whitney; p < 0.05), including areas of superficial necrosis associated with mild inflammatory reactions. These data were achieved by recordings of TS immediately after bleaching (Fishers exact test; p
ISSN:2161-6213