Behavior of resin-based endodontic sealer cements in thin and thick films
Epita S Pane, Joseph EA Palamara, Harold H Messer
DENTAL MATERIALS | ELSEVIER SCI LTD | Published : 2012
OBJECTIVES: For root canal fillings, a thin layer of sealer cement is generally recommended. However, with resin-based sealers, lower bond strength to dentin has been shown in thin layers compared to thick, contrary to typical behavior of adhesive layers between two adherents. The aim of this study was to evaluate tensile and shear bond strength of thin and thick films of three resin-based sealers (one epoxy-based and two methacrylate-based) materials and to investigate corner effects of one methacrylate-based resin sealer. METHODS: Freshly mixed sealer cements were placed between metal-to-metal surfaces of plano-parallel stainless steel aligned rods with diameter 4.7 mm. Ten samples were pr..View full abstract
This research was supported by Postgraduate Research Fund of Melbourne Dental School, University of Melbourne and in part by Dentsply Australia, and some materials were donated by Dentsply Australia and Ultradent.