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Microtensile bond strength of eleven contemporary adhesives to enamel.
- Source :
-
American journal of dentistry [Am J Dent] 2003 Oct; Vol. 16 (5), pp. 329-34. - Publication Year :
- 2003
-
Abstract
- Purpose: To compare the microtensile bond strength (microTBS) to enamel of 10 contemporary adhesives, including three one-step self-etch systems, four two-step self-etch systems and three two-step total-etch systems, with that of a conventional three-step total-etch adhesive.<br />Methods: Resin composite (Z100, 3M) was bonded to flat, #600-grit wet-sanded enamel surfaces of 18 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 2-4 thin slabs of approximately 1 mm thickness and 2.5 mm width. They were then trimmed into an hourglass shape with an interface area of approximately 1 mm2, and subsequently subjected to microTBS-testing with a cross-head speed of 1 mm/minute.<br />Results: The microTBS to enamel varied from 3.2 MPa for the experimental one-step self-etch adhesive PQ/Universal (self-etch) to 43.9 MPa for the two-step total-etch adhesive Scotchbond 1. When compared with the conventional three-step total-etch adhesive OptiBond FL, the bond strengths of most adhesives with simplified application procedures were not significantly different, except for two one-step self-etch adhesives, experimental PQ/Universal (self-etch) and One-up Bond F, that showed lower bond strengths. Specimen failures during sample preparation were recorded for the latter adhesives as well.
Details
- Language :
- English
- ISSN :
- 0894-8275
- Volume :
- 16
- Issue :
- 5
- Database :
- MEDLINE
- Journal :
- American journal of dentistry
- Publication Type :
- Academic Journal
- Accession number :
- 14677612