HIGHLIGHTSPOBT in endodontic research predicts the clinical behavior of endodontic material s .
Introduction : There is limited literature on the impact of testing variables on the push‐out bond test ( POBT ) .
This review identified design s of the POBT used in the endodontic literature and aim ed to determine which experimental variables may influence the push‐out bond strength ( POBS ) .
Effect of tooth bleaching on bond strength of enamel-dentin cavities restored with silorane- and dimethacrylate-based materials.
The aim of this study was to evaluate the influence of  tooth bleaching  on the push-out bond strength of a composite resin based on dimethacrylates and silorane to cavities that involve both enamel and dentin . A total of 80 bovine incisors were sectioned on the buccal surface to obtain specimens ( 10 × 10 mm ) presenting enamel and dentin ( 1-mm thick each substrate ) . The specimens were r and omly distributed into eight groups ( n=10 ) , according to the bleaching protocol ( 1 - -none ; 2 - -10 % carbamide peroxide [ CP ] for 21 days , six hours each day ; 3 - -three applications of 35 % hydrogen peroxide [ HP ] in 15-minute sessions , one session every seven days for three weeks ; 4 - -10 % CP for 18 days , six hours each day + three applications of 35 % HP in 15-minute sessions , one session every seven days for three weeks ) and the restorative system applied ( Adper Single Bond 2 + Filtek Supreme ; Filtek Silorane adhesive and composite resin ) . After treatment , cavities were made ( 1.2-mm diameter on dentin ; 1.5-mm diameter on enamel ) with a diamond bur . At 24 hours after restoration , a push-out bond strength test was performed at a crosshead speed of 0.5 mm/min . The bleaching treatments did not significantly affect the bond strengths of either restorative system to enamel-dentin . Regardless of the bleaching treatment , the dimethacrylate-based resin system exhibited significantly higher bond strengths to enamel-dentin than did the silorane-based system
HIGHLIGHTSPOBT in endodontic research predicts the clinical behavior of endodontic material s .
Introduction : There is limited literature on the impact of testing variables on the push‐out bond test ( POBT ) .
This review identified design s of the POBT used in the endodontic literature and aim ed to determine which experimental variables may influence the push‐out bond strength ( POBS ) .