Bonding to NaOCl-treated dentin: effect of pretreatment with sodium toluene sulfinic acid.

Xianghong Li, Weidong Ma, Xiaodong Chen, Jiaming Zhao, Takashi Nakata, Kumiko Tanaka, Kei Takahashi, Yoshihiro Nishitani, Masahiro Yoshiyama

Research output: Contribution to journalArticle

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Abstract

The use of sodium hypochlorite (NaOCl) can decrease the bond strength of 4-META/MMA-TBB resin cement to root dentin. The aim of this in vitro study was to evaluate the effect of sodium toluene sulfinic acid (SA) as a pretreatment to increase bond strength to NaOCl-treated dentin. The root canal dentin of bovine teeth was treated with 6 methods: group 10-3 (10% citric acid/3% ferric chloride; control); group SA; group NC (sodium hypochlorite/10-3 solution); group NS-10-3 (NaOCl + sulfinic acid + 10-3 solution); group HSA-10-3 (NaOCl +H2O2 +NaOCl + sulfinic acid + 10-3 solution); group HO-10-3 (NaOCl + H2O2 + NaOCl +10-3 solution). The roots were then filled with Super-Bond C&B (SB) or Super-Bond sealer (SBS). Samples were stored in distilled water for 24 h at 37°C and then cross sectioned into five slabs (0.8 mm thick) that were subjected to "trimming" microtensile bond strength testing. All treated dentin surfaces and resin/dentin bond interfaces were analyzed under SEM. Compared with the control, NaOCl treatment significantly decreased the resin/dentin bond strengths. However, SA treatment following NaOCl irrigation resulted in no significant differences of bond strength values. Sulfinic acid was effective in restoring 4-META/MMA-TBB resin cement bond strength after NaOCl irrigation.

Original languageEnglish
Pages (from-to)129-136
Number of pages8
JournalJournal of Adhesive Dentistry
Volume14
Issue number2
Publication statusPublished - Apr 2012

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Sulfinic Acids
Toluene
Dentin
Sodium
Resin Cements
Sodium Hypochlorite
Dental Pulp Cavity
Citric Acid
Tooth
Super-bond
Water

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Bonding to NaOCl-treated dentin : effect of pretreatment with sodium toluene sulfinic acid. / Li, Xianghong; Ma, Weidong; Chen, Xiaodong; Zhao, Jiaming; Nakata, Takashi; Tanaka, Kumiko; Takahashi, Kei; Nishitani, Yoshihiro; Yoshiyama, Masahiro.

In: Journal of Adhesive Dentistry, Vol. 14, No. 2, 04.2012, p. 129-136.

Research output: Contribution to journalArticle

Li, Xianghong ; Ma, Weidong ; Chen, Xiaodong ; Zhao, Jiaming ; Nakata, Takashi ; Tanaka, Kumiko ; Takahashi, Kei ; Nishitani, Yoshihiro ; Yoshiyama, Masahiro. / Bonding to NaOCl-treated dentin : effect of pretreatment with sodium toluene sulfinic acid. In: Journal of Adhesive Dentistry. 2012 ; Vol. 14, No. 2. pp. 129-136.
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