Barajas de la VL, Barceló F

Language: Spanish
References: 21
Page: 181-184
PDF size: 168.35 Kb.

ABSTRACT

Self-etching dentin adhesives offer a significant advance in step reduction in relation to phosphoric acid etchants, besides the well-known benefits such as clinical enamel and dentin adhesion. There are many comparative studies regarding dentin bond strength (with and without acid etching), most of them reporting low values for self-etching systems. These evaluations have been made using microtensile, shear bond and tension tests, but none of them had used the push out method. Objective: To evaluate and compare the adhesion quality of composite resin direct restorations in dentin using two adhesion systems with self-etchant and with phosphoric acid etchant. Method: 45 human extracted molars were collected and randomly divided into 3 groups with 15 samples each. The teeth were sectioned and restored with composite resin. Adhesion was evaluated using the push out resistance technique. ANOVA statistical analysis was made using one-way and Tukey test. Results: No statistical significant differences between AdheSE (26.8 MPa) and Single Bond (25.6 MPa), but there was with Prompt L-pop (10.6 MPa) were observed. Conclusion: The adhesive system without etchant (AdheSE), obtained adhesion values similar to those obtained with the phosphoric acid-etching system.

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