Effect of an 8.0% arginine and calcium carbonate desensitizing toothpaste on shear dentin bond strength

G. Canares, T. Salgado, M. S. Pines, M. S. Wolff

Research output: Contribution to journalArticle

Abstract

• Objective: The objective of this study was to determine the effect of an 8.0% arginine and calcium carbonate desensitizing toothpaste (Colgate ® Sensitive Pro-Relief ) on shear bond strength of composites to bovine incisor dentin. • Methods: Bovine incisors were sectioned and prepared into 27 dentin specimens. The experimental group had 13 specimens treated for 10 sessions of two-minute brushing with an 8.0% arginine and calcium carbonate desensitizing toothpaste, followed by a 30-second agitated water wash. The control group had 14 specimens treated with flour of pumice only. Each specimen was dried, etched with 35% phosphoric acid for 15 seconds, and washed clean. A bonding agent was applied and polymerized. A 2.38 mm diameter column of Filtek Supreme A2 was bonded to the surface and polymerized as per manufacturer's instructions. Specimens were stored in water for at least 48 hours, subjected to a shear force at a crosshead speed of 0.5 mm/minute on an Instron mechanical testing device, and force at failure was recorded. A one-sided t-test was used to evaluate significant differences among the groups as measured by mean shear strength. • Results: Mean shear force was 19.6 ± 9.4 (SD) for the experimental group and 15.4 ± 6.0 for the control group with p = 0.0291. • Conclusion: No significant differences were found for bond strength to dentin treated with an 8.0% arginine and calcium carbonate desensitizing toothpaste or pumice. Dentists can still achieve optimal dentin bonding results if a patient is using Colgate Sensitive Pro-Relief to manage dentin hypersensitivity.

Original languageEnglish (US)
Pages (from-to)68-70
Number of pages3
JournalJournal of Clinical Dentistry
Volume23
Issue number2
StatePublished - 2012

ASJC Scopus subject areas

  • Dentistry(all)

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