Abstract：
:We examined the effect of warm air-drying on the enamel bond strengths and the surface free-energy of three single-step self-etch adhesives. Bovine mandibular incisors were mounted in self-curing resin and then wet ground with #600 silicon carbide (SiC) paper. The adhesives were applied according to the instructions of the respective manufacturers and then dried in a stream of normal (23°C) or warm (37°C) air for 5, 10, and 20 s. After visible-light irradiation of the adhesives, resin composites were condensed into a mold and polymerized. Ten samples per test group were stored in distilled water at 37°C for 24 h and then the bond strengths were measured. The surface free-energies were determined by measuring the contact angles of three test liquids placed on the cured adhesives. The enamel bond strengths varied according to the air-drying time and ranged from 15.8 to 19.1 MPa. The trends for the bond strengths were different among the materials. The value of the γS⁺ component increased slightly when drying was performed with a stream of warm air, whereas that of the γS⁻ component decreased significantly. These data suggest that warm air-drying is essential to obtain adequate enamel bond strengths, although increasing the drying time did not significantly influence the bond strength.
journal_name
Eur J Oral Scijournal_title
European journal of oral sciencesauthors
Shiratsuchi K,Tsujimoto A,Takamizawa T,Furuichi T,Tsubota K,Kurokawa H,Miyazaki Mdoi
10.1111/eos.12061subject
Has Abstractpub_date
2013-08-01 00:00:00pages
370-6issue
4eissn
0909-8836issn
1600-0722journal_volume
121pub_type
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