TY - JOUR
T1 - Bond strengths of three-step etch-and-rinse adhesives to silane contaminated dentin
AU - Soontornvatin, Vasavat
AU - Prasansuttiporn, Taweesak
AU - Thanatvarakorn, Ornnicha
AU - Jittidecharaks, Sumana
AU - Hosaka, Keiichi
AU - Foxton, Richard M.
AU - Nakajima, Masatoshi
N1 - Funding Information:
This research work was partially supported by Chiang Mai University (Grant No. CoE63-P005).
Publisher Copyright:
© 2021, Japanese Society for Dental Materials and Devices. All rights reserved.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/3/31
Y1 - 2021/3/31
N2 - This study aimed to evaluate the effect of silane coupling agent contamination on the microtensile bond strength (μTBS) of 3-step etch-and-rinse adhesives on dentin. Flat occlusal dentin surfaces were prepared and randomly divided into 8 groups (n=20) based on the tested adhesives; Scotchbond Multi-purpose or Optibond FL, with contamination of an experimental silane (2 vol% of 3-m ethacryloxypropyltrimethoxysilane at pH 4.5) before acid-etching, after-etching or after-priming; while the groups without silane contamination served as controls. μTBS data were analyzed by two-way ANOVA and Tukey’s HSD tests at a significance level of 0.05. Additional specimens of contaminated dentin were used to analyze changes in the organic molecules by Fourier transform infrared spectroscopy (FTIR). Silane contamination before acid-etching did not significantly change μTBS (p>0.05), but contamination afteretching and after-priming significantly decreased ^TBS of both adhesives (p<0.05). Silane contamination had an adverse effect on the dentin bond strength of 3-step etch-and-rinse adhesives especially after-priming.
AB - This study aimed to evaluate the effect of silane coupling agent contamination on the microtensile bond strength (μTBS) of 3-step etch-and-rinse adhesives on dentin. Flat occlusal dentin surfaces were prepared and randomly divided into 8 groups (n=20) based on the tested adhesives; Scotchbond Multi-purpose or Optibond FL, with contamination of an experimental silane (2 vol% of 3-m ethacryloxypropyltrimethoxysilane at pH 4.5) before acid-etching, after-etching or after-priming; while the groups without silane contamination served as controls. μTBS data were analyzed by two-way ANOVA and Tukey’s HSD tests at a significance level of 0.05. Additional specimens of contaminated dentin were used to analyze changes in the organic molecules by Fourier transform infrared spectroscopy (FTIR). Silane contamination before acid-etching did not significantly change μTBS (p>0.05), but contamination afteretching and after-priming significantly decreased ^TBS of both adhesives (p<0.05). Silane contamination had an adverse effect on the dentin bond strength of 3-step etch-and-rinse adhesives especially after-priming.
KW - 3-step etch-and-rinse adhesive
KW - Ceramic repairing
KW - Contamination
KW - Microtensile bond strength
KW - Silane coupling agent
UR - http://www.scopus.com/inward/record.url?scp=85103682127&partnerID=8YFLogxK
U2 - 10.4012/dmj.2020-025
DO - 10.4012/dmj.2020-025
M3 - Article
C2 - 33208575
AN - SCOPUS:85103682127
SN - 1881-1361
VL - 40
SP - 385
EP - 392
JO - Dental materials journal
JF - Dental materials journal
IS - 2
M1 - dmj/2020-025
ER -