An in vitro Study to Assess Glucose Microleakage Along Fiber Posts Cemented with 2- and 3-Step Etch-and-Rinse Resin Adhesive Systems

Abstract - The aim of the study is to compare the sealing ability of two adhesive systems. Thirty teeth were endodontically treated and were randomly assigned to 2 groups: G 1 – 3-step adhesive (Solobond-Plus) and G 2 – 2-step adhesive (Solobond-M). Posts containing glass fiber were cemented using the adhesive technique recommended by the manufacturer. All samples were mounted on a glucose leakage model. A 10 μL aliquot of solution was drawn from the glass bottle using a micropipette. The samples were then analyzed in a UV-Vis spectrophotometer. The two tested adhesive systems presented a similar capacity to prevent the glucose infiltration.

KEY WORDS: adhesive systems, dentin, dentin sealing, fiber posts, infiltration, sealing ability