Interfacial fracture toughness of aged adhesive-dentin interfaces

摘要

Objective. To assess interfacial fracture toughness of different adhesive approaches and compare to a standard micro-tensile bond-strength (mu TBS) test after 6 months water storage.n Methods. Chevron-notched beam fracture toughness (CNB) was determined using a modified ISO 24370:2005 standard. Adhesive-dentin micro-specimens (1.0 mm x 1.0 mm x 8-10 mm) were stressed in tensile until failure to determine the micro-tensile bond strength (mu TBS).n Results. The highest mean mu TBS and interfac