Publications by authors named "Luiz Marquezini"
Purpose: To test the effects of sequential application of potassium oxalate gel/adhesive agent on in vitro dentin permeability.
Materials And Methods: Full crown preparations were made in extracted human molars to expose deep coronal dentin. The roots and pulp were removed and the resulting crown segments were connected to a special device (Flodec) to permit the measurement of the permeability of the specimens before and after treatments.
Objective: To evaluate the effects of surface moisture (wet or dry) and storage (24h or 3 months) on the microtensile bond strength (BS) of resin/dentin bonds mediated by two water/ethanol based adhesives Single Bond, 3M-ESPE, (SB) and Opti Bond Solo Plus, Kerr, (OB), and two acetone-based adhesives, One Step, Bisco, (OS) and Prime&Bond NT, Caulk/Dentsply, (PB).
Materials And Methods: Flat dentin surfaces were polished with 600-grit SiC paper, etched with 35% phosphoric acid for 15s and rinsed for 20s. Half the surface was maintained moist and the other half was air-dried for 30s.
Background: Flowability and viscosity vary for different adhesive systems owing to differences in their composition. These characteristics can be modified by environmental temperature.
Purpose: The purpose of this study was to determine the influence of temperature on the spreading (flow capacity) of simplified-step adhesive systems.