Effect of 2% chlorhexidine digluconate on the bond strength to normal versus caries-affected dentin

Paula C.P. Komori, David Henry Pashley, Leo Tjäderhane, Lorenzo Breschi, Annalisa Mazzoni, Mario Fernando De Goes, Linda Wang, Marcela R. Carrilho

Research output: Contribution to journalArticle

72 Citations (Scopus)

Abstract

This study evaluated the effect of 2% chlorhexidine digluconate (CHX) used as a therapeutic primer on the long-term bond strengths of two etch-and-rinse adhesives to normal (ND) and caries-affected (CAD) dentin. Forty extracted human molars with coronal carious lesions, surrounded by normal dentin, were selected for this study. The flat surfaces of two types of dentin (ND and CAD) were prepared with a water-cooled high-speed diamond disc, then acid-etched, rinsed and air-dried. In the control groups, the dentin was re-hydrated with distilled water, blot-dried and bonded with a three-step (Scotchbond Multi-Purpose-MP) or two-step (Single Bond 2-SB) etch-and-rinse adhesive. In the experimental groups, the dentin was rehydrated with 2% CHX (60 seconds), blot-dried and bonded with the same adhesives. Resin composite build-ups were made. The specimens were prepared for microtensile bond testing in accordance with the non-trimming technique, then tested either immediately or after six-months storage in artificial saliva. The data were analyzed by ANOVA/Bonferroni tests (α=0.05). CHX did not affect the immediate bond strength to ND or CAD (p>0.05). CHX treatment significantly lowered the loss of bond strength after six months as seen in the control bonds for ND (p<0.05), but it did not alter the bond strength of CAD (p>0.05). The application of MP on CHX-treated ND or CAD produced bonds that did not change over six months of storage.

Original languageEnglish (US)
Pages (from-to)157-165
Number of pages9
JournalOperative dentistry
Volume34
Issue number2
DOIs
StatePublished - Mar 1 2009

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Dentin
Adhesives
Artificial Saliva
Diamond
Water
Composite Resins
Analysis of Variance
Air
chlorhexidine gluconate
Control Groups
Acids

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Komori, P. C. P., Pashley, D. H., Tjäderhane, L., Breschi, L., Mazzoni, A., De Goes, M. F., ... Carrilho, M. R. (2009). Effect of 2% chlorhexidine digluconate on the bond strength to normal versus caries-affected dentin. Operative dentistry, 34(2), 157-165. https://doi.org/10.2341/08-55

Effect of 2% chlorhexidine digluconate on the bond strength to normal versus caries-affected dentin. / Komori, Paula C.P.; Pashley, David Henry; Tjäderhane, Leo; Breschi, Lorenzo; Mazzoni, Annalisa; De Goes, Mario Fernando; Wang, Linda; Carrilho, Marcela R.

In: Operative dentistry, Vol. 34, No. 2, 01.03.2009, p. 157-165.

Research output: Contribution to journalArticle

Komori, PCP, Pashley, DH, Tjäderhane, L, Breschi, L, Mazzoni, A, De Goes, MF, Wang, L & Carrilho, MR 2009, 'Effect of 2% chlorhexidine digluconate on the bond strength to normal versus caries-affected dentin', Operative dentistry, vol. 34, no. 2, pp. 157-165. https://doi.org/10.2341/08-55
Komori PCP, Pashley DH, Tjäderhane L, Breschi L, Mazzoni A, De Goes MF et al. Effect of 2% chlorhexidine digluconate on the bond strength to normal versus caries-affected dentin. Operative dentistry. 2009 Mar 1;34(2):157-165. https://doi.org/10.2341/08-55
Komori, Paula C.P. ; Pashley, David Henry ; Tjäderhane, Leo ; Breschi, Lorenzo ; Mazzoni, Annalisa ; De Goes, Mario Fernando ; Wang, Linda ; Carrilho, Marcela R. / Effect of 2% chlorhexidine digluconate on the bond strength to normal versus caries-affected dentin. In: Operative dentistry. 2009 ; Vol. 34, No. 2. pp. 157-165.
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