Influence of Blood Contamination on Push-Out Bond Strength of Three Calcium Silicate-Based Materials to Root Dentin

A proper bond between root canal filling materials and dentin surface is essential to resist dislodgement guarantee long-term success. Blood exposure likely occur in various clinical situations which calcium silicate-based are used; therefore, it fundamental render data concerning the influence of blood on strength. The present study aims evaluate effect contamination push-out strength obtained with three different biomaterials dentin; Ninety extracted human mono-radicular permanent teeth were selected. canals prepared Gates Glidden burs until a diameter 1.10 mm was achieved. Teeth then randomly divided into six experimental groups (n = 15) according presence/absence biomaterial used for (ProRoot® MTA, BiodentineTM, TotalFill® BC Putty). After one week, each sectioned segments (coronal, middle, apical regions). Specimens submitted tests. Fracture pattern evaluation performed. significance level set at 5%.; did not affect any tested cements (p > 0.05). Regardless contamination, TotalFill showed statistically higher when compared Biodentine 0.040) MTA 0.004). exhibited than 0.043). Biomaterials’ comparison within radicular segment revealed superior both over < 0.05) coronal segment. presented regarding 0.003). Fractures mostly adhesive.; Overall results indicate presents highest values, followed by and, lastly, MTA. resistance. as preferable alternatives application region. might be choice placement