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

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.

• Authors: G Canares, T Salgado, M S Pines, M S Wolff
• Journal: The Journal of clinical dentistry (J Clin Dent) Vol. 23 Issue 2 Pg. 68-70 ( 2012) ISSN: 0895-8831 [Print] United States
• PMID: 22779220 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Composite Resins
• Dentin Desensitizing Agents
• Dentin-Bonding Agents
• Resin Cements
• Toothpastes
• Arginine
• Calcium Carbonate

Topics

• Animals
• Arginine (pharmacology)
• Calcium Carbonate (pharmacology)
• Cattle
• Composite Resins
• Dental Bonding
• Dental Stress Analysis
• Dentin (drug effects)
• Dentin Desensitizing Agents (pharmacology)
• Dentin-Bonding Agents
• Resin Cements
• Shear Strength
• Toothpastes (chemistry, pharmacology)