Dentin shear bond strength of compomers and composites

摘要

Objective: The aim of this study was to compare the shear bond strengths and fracture characteristics of two compomers bonded with a single step bonding agent with two modern composites, a microfil and hybrid, bonded with a fourth generation bonding agent. Methods: Freshly extracted human third molars were sectioned parallel to the occulusal surface to expose midcoronal dentin, prepared with 320-grit surface finish, and bonded (N=11 samples/group) following manufacturer's directions with the compomers (Dyract, DeTrey Konstanz, Germany or Compoglass, Vivadent, Schaan Liechtenstein) or the dentin bonding agent SMP+ (Scotchbond multi-Purpose Plus, 3M Dental Products, St. Paul MN) with Silu xPlus or Z100 (3M Dental Products, St. Paul, MN).