ABSTRACT Aim: This study determined whether prior brushing with desensitizing toothpastes (Sensodyne Rapid Relief and Colgate Pro-Relief) affected the shear bond strengths of composite to dentine surfaces after appropriate use of two different dentine bonding agents (SingleBond and PQ-1). Materials and Methods: Sixty caries free molar teeth were cleaned, disinfected and embedded in individual cylinders of polymethylmethracyrlate. The occulsal surfaces were flattened to expose dentine and finished down with 600 grit silicone carbide paper. The teeth were randomly divided into six groups of 10 teeth each. Two groups served as control where dentine surfaces were brushed with pumice slurry. Of the remaining 4 groups, 2 groups were brushed with Sensodyne Rapid Relief and 2 groups brushed with Colgate Pro-Relief. The dentine surfaces were brushed to simulate 2 weeks of twice-daily toothpaste use. The specimens in each of the control groups and experimental groups were subjected to dentine bonding procedures (Single Bond or PQ-1), and application of hybrid composite resin (Z-250) according to the manufacturer’s instructions. A universal material testing machine, with a cross head speed of 0.05 mm/min was used to determine shear bond strengths. Results: Mean shear bond strengths ranged from 5.71 MPa (Colgate pretreatment, composite bonded with Single Bond) to 9.07 MPa (Sensodyne pretreatment, composite bonded with Single Bond). Results showed neither of the main effects, of toothpaste type or bonding agent were significant (p > 0.05) but their interaction was (F = 4.25, p = 0.02). Post hoc analysis showed that teeth brushed with the Sensodyne group, treated with the unfilled dentine bonding agent had a significantly higher bond strength than those treated with the filled dentine bonding agent. Conclusion: The desensitizing toothpastes that use the mechanism of occlusion of open dentinal tubules in the preliminary management of tooth sensitivity should not have an adverse effect on future restorative treatment modalities.
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Marchan, S. , White, D. , Pruszynski, J. , Manwah, T. , Bassaw, V. and Smith, W. (2014) The Shear Bond Strengths of Composite Bonded to Dentine Following Treatment with Two Dentine Occluding Desensitizing Toothpastes. Open Journal of Stomatology, 4, 121-125. doi: 10.4236/ojst.2014.43019.
 Rafeek, R., Marchan, S., Eder, A. and Smith, W.A.J. (2006) Tooth Surface Loss in Adult Subjects Attending a University Dental Clinic in Trinidad. International Dental Journal, 56, 181-186.
 Smith, W.A.J., Marchan, S. and Rafeek, R. (2008) The Prevalence and Severity of Non-Carious Cervical Lesions in a Group of Patients Attending a University Hospital in Trinidad. Journal of Oral Rehabilitation, 35, 128-134.
 Salvato, A.R., Clart, G.E., Gingold, J. and Curro, F.A. (1992) Clinical Effectiveness of a Dentifrice Containing Potassium Chloride as a Desensitizing Agent. American Journal of Dentistry, 5, 303-306.
 Silverman, G., Gingold, J. and Curro, F.A. (1994) Desensitizing Effect of a Potassium Chloride Dentifrice. American Journal of Dentistry, 7, 9-12.
 Petrou, I., Heu, R., Stranick, M., Lavender, S., Zaidel, L., Cummins, D., Sullivan, R.J., Hseuh, C. and Gimzewski, J.K. (2009) A Breakthrough Therapy for Dentin Hypersensitivity: How Dental Products Containing 8% Arginine and Calcium Carbonate Work to Deliver Effective Relief of Sensitive Teeth. Journal of Clinical Dentistry, 20, 23-31.
 Parkinson, C.R. and Willson, R.J. (2011) An in Vitro Investigation of Two Currently Marketed Dentin Tubule Occlusion Dentifrices. Journal of Clinical Dentistry, 22, 6-10.
 Pashley, D.H., Ciucchi, B. and Sano, H. (1994) Dentin as a Bonding Substrate. Deutsche Zahnarztl Zeitschrift, 49, 760-763.
 Pashley, D.H., Ciucchi, B., Sano, H. and Horner, J.A. (1993) Permeability of Dentin to Adhesive Resins. Quintessence International, 24, 618-631.
 ISO Specification ISO/TS 11 405 (E) (2003) Dental Materials—Testing of Adhesion to Tooth Structure.
 Canares, G., Salgado, T., Pines, M.S. and Wolff, M.S. (2012) Effect of an 8% Arginine and Calcium Carbonate Desensitizing Toothpaste on Shear Dentine Bond Strength. Journal of Clinical Dentistry, 23, 68-70.
 Ateyah, N.Z. and Elhejazi, A.A. (2004) Shear Bond Strengths and Microleakage of Four Types of Dentine Adhesive Materials. Journal of Contemporary Dental Practice, 5, 63-73.