Influence of post-bleaching time intervals on dentin bond strength.

Erica Cappelletto Nogueira Teixeira, Cecilia Pedroso Turssi, Anderson Hara, Mônica Campos Serra

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

It has been reported that bond strength of resin to tooth structure can be reduced when the bonding procedure is carried out immediately after the bleaching treatment. This study evaluated the effect of bleaching of non-vital teeth bleaching on the shear bond strength (SBS) of composite resin/bovine dentin interface and the influence of delaying the bonding procedures for different time intervals following internal bleaching. According to a randomized block design, composite resin cylinders (Z100/Single bond - 3M) were bonded to the flattened dentin surface of two hundred and fifty-six teeth which had previously been subjected to four different treatments: SPH - sodium perborate + 30% hydrogen peroxide; SPW - sodium perborate + distilled water; CP - 37% carbamide peroxide; and CON - distilled water (control), each one followed by storage in artificial saliva for 0 (baseline), 7, 14, and 21 days after bleaching (n = 16). The bleaching agents in the pulp chambers were replaced every 7 days, over 4 weeks. The SBS test of the blocks was done using a universal testing machine. The ANOVA showed that there was no significant interaction between time and bleaching agents, and that the factor time was not statistically significant (p > 0.05). For the factor bleaching treatment, the Student's t-test showed that [CON = CP] > [SPW = SPH]. The bleaching of non-vital teeth affected the resin/dentin SBS values when sodium perborate mixed with 30% hydrogen peroxide or water was used, independently of the elapsed time following the bleaching treatment.

Original languageEnglish (US)
Pages (from-to)75-79
Number of pages5
JournalPesquisa odontologica brasileira = Brazilian oral research
Volume18
Issue number1
StatePublished - Jan 2004
Externally publishedYes

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sodium perborate
Dentin
Shear Strength
Bleaching Agents
Tooth
Hydrogen Peroxide
Water
Tooth Bleaching
Artificial Saliva
Composite Resins
Dental Pulp Cavity
Therapeutics
Analysis of Variance
Students

ASJC Scopus subject areas

  • Dentistry(all)

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Influence of post-bleaching time intervals on dentin bond strength. / Teixeira, Erica Cappelletto Nogueira; Turssi, Cecilia Pedroso; Hara, Anderson; Serra, Mônica Campos.

In: Pesquisa odontologica brasileira = Brazilian oral research, Vol. 18, No. 1, 01.2004, p. 75-79.

Research output: Contribution to journalArticle

Teixeira, Erica Cappelletto Nogueira ; Turssi, Cecilia Pedroso ; Hara, Anderson ; Serra, Mônica Campos. / Influence of post-bleaching time intervals on dentin bond strength. In: Pesquisa odontologica brasileira = Brazilian oral research. 2004 ; Vol. 18, No. 1. pp. 75-79.
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