Publication: Effect of smear layer and surface roughness on resin-dentin bond strength of self-etching adhesives
Issued Date
2018-01-01
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ISSN
18811361
02874547
02874547
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2-s2.0-85061915342
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Mahidol University
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SCOPUS
Bibliographic Citation
Dental Materials Journal. Vol.37, No.6 (2018), 973-980
Suggested Citation
Pipop Saikaew, Pisol Senawongse, AFM Almas Chowdhury, Hidehiko Sano, Choltacha Harnirattisai Effect of smear layer and surface roughness on resin-dentin bond strength of self-etching adhesives. Dental Materials Journal. Vol.37, No.6 (2018), 973-980. doi:10.4012/dmj.2017-349 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/45727
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Title
Effect of smear layer and surface roughness on resin-dentin bond strength of self-etching adhesives
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Abstract
© 2018, Japanese Society for Dental Materials and Devices. All rights reserved. The purpose of this study was to evaluate the effect of surface roughness and smear layer on the micro-shear bond strength (µSBS) of two self-etching adhesives, Clearfil SE Bond (SE) and Clearfil Tri-S Bond (S3). Flat dentin surfaces were prepared with SiC papers (600-, 180-and 120-grit) and diamond burs (extra fine, medium and coarse). They were further divided into smear-covered and smear-free surfaces and bonded with respective adhesives. µSBS test was performed after water storage at 37ºC for 24 h. Smear layer thickness measurement was evaluated by scanning electron microscope (SEM). Surface roughness was examined by contact stylus profilometer. Smear layer thickness and surface roughness were significantly different among all groups (p<0.05). No difference in µSBS was observed among surface prepared by SiC whereas bur-cut smear layer had negative effect on µSBS, especially for S3. Surface roughness from different surface preparations had no influence on µSBS (p<0.05).