Purpose: To compare the enamel shear bond strength of four hydrophilic adhesive systems: one multiple-bottle (Scotchbond Multi-Purpose Plus), two one-bottle (Stae, Single Bond) and one self-etching (Etch & Prime). Materials and Methods: 120 bovine incisor teeth were obtained, embedded in polyester resin, polished to 600 grit to form standardized enamel surfaces, and randomly assigned to four groups (n = 30). Each adhesive system was used on enamel according to the manufacturer's instructions, and resin-based composite (Z100) cylinders with 3 mm diameter and 5 mm height were bonded. Specimens were stored in humid environment for 1 week, and bond strength was determined using a universal testing machine, at a crosshead speed of 0.5 mm/minute. Results: The mean shear bond strength values (MPa ± SD) were: Single Bond: 24.28 ± 5.27 (a); Scotchbond Multi-Purpose Plus: 21.18 ± 4.35 (ab); Stae: 19.56 ± 4.71 (b); Etch & Prime 3.0: 15.13 ± 4.92 (c). ANOVA revealed significant difference in means (P < 0.01) and Tukey's test showed the statistical differences that are expressed by different letters for each group. It could be concluded that the self-etching adhesive system did not provide as good a bond to enamel surface, as did the one- and multiple-bottle systems.
|Original language||English (US)|
|Number of pages||4|
|Journal||American journal of dentistry|
|State||Published - Aug 1 1999|
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