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Effect of Short‐Duration, Localized Carbamide Peroxide Application to Remove Enamel Staining on Bond Strength of Resin Cement to Enamel
Author(s) -
Cooper Jeril R.,
Young Nancy B.,
Haywood Van B.,
Mettenburg Don,
Callan Richard S.,
Rueggeberg Fredrick A.
Publication year - 2016
Publication title -
journal of esthetic and restorative dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.919
H-Index - 60
eISSN - 1708-8240
pISSN - 1496-4155
DOI - 10.1111/jerd.12200
Subject(s) - carbamide peroxide , enamel paint , bond strength , materials science , peroxide , cement , composite material , dentistry , dental cement , chemistry , adhesive , medicine , organic chemistry , layer (electronics)
Objective Peripheral enamel staining is often noticed after removal of long‐term veneer or crown provisional restorations. Application of carbamide peroxide (CP) easily removes the stain, but the potential for immediate bonding with a resin‐based cement is questionable. This project tested the short‐term, shear bond strength of a commercial, photo‐curable, resin cement to bovine enamel after application of a 10% concentration of CP placed for different exposure times.Materials and Methods Bovine enamel was flattened and polished. Surfaces had either no CP application (control), or 10% CP applied for 10, 20, or 30 seconds. Teeth were acid‐etched, rinsed, dried, and controlled sized stubs of a commercial resin cement were photocured onto the treated surfaces. The shear bond strength of each specimen was determined using a universal testing machine, and results were compared using an analysis of variance at a preset alpha of 0.5 ( n = 10/group). Results No significant differences ( p = 0.819) in shear bond strength were found among any CP cleaning treatments or the experimental (nontreated) control. Conclusions Short‐term application of 10% carbamide peroxide prior to acid etching, to remove enamel stains in teeth prepared to receive ceramic veneers or crowns, does not reduce immediate shear bond strength of resin‐based cement to enamel. Clinical Significance Clinicians can confidently apply 10% CP for short‐term, localized stain removal on enamel and not be concerned about affecting subsequent bond strength of a resin‐based cement to enamel. (J Esthet Restor Dent, 2016)