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Title: Microtensile bond strength of eleven contemporary adhesives to dentin
Authors: Inoue, S ×
Vargas, M A
Abe, Y
Yoshida, Y
Lambrechts, Paul
Vanherle, Guido
Sano, H
Van Meerbeek, Bart #
Issue Date: Jan-2001
Series Title: The journal of adhesive dentistry vol:3 issue:3 pages:237-45
Abstract: PURPOSE: To evaluate the microtensile bond strength (microTBS) of eleven contemporary adhesives to dentin, including three one-step self-etch systems, four two-step self-etch systems, three two-step total-etch systems, and one three-step total-etch system. MATERIALS AND METHODS: Resin composite (Z100) was bonded to flat, mid-coronal dentin from 33 extracted human third molars using the adhesives strictly according to the respective manufacturer's instructions. After storage overnight in 37 degrees C water, the bonded specimens were sectioned into 3 to 6 slabs of approximately 1 mm thickness and 2.5 mm width. They were then trimmed into an hourglass shape resulting in an interface area of approximately 1 mm2, and subsequently subjected to microTBS testing with a crosshead speed of 1 mm/min. RESULTS: The microTBS varied from 30.0 MPa for the one-step self-etch adhesive Prompt L-Pop 2 (ESPE) to 63.1 MPa for the three-step total-etch adhesive OptiBond FL (Kerr), the latter being the only one that significantly differed from all other microTBS values. Although not significantly different, one-step self-etch adhesives tended to have lower microTBS than two-step self-etch and two-step total-etch adhesives. Specimen failures during sample preparation occurred with Prompt L-Pop 2 (4 pretesting failures out of 17 specimens) and NRC/Prime & Bond NT (7 pretesting failures out of 14 specimens). CONCLUSION: Adhesives with simplified application procedures, either following a total-etch or self-etch approach, produced lower bond strengths to dentin than a conventional three-step total-etch adhesive. Some concern exists regarding the consistency in bonding effectiveness to dentin of some self-etch adhesives.
ISSN: 1461-5185
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Biomaterials - BIOMAT
× corresponding author
# (joint) last author

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