TY - JOUR
T1 - Incorporation of a hydrophilic amide monomer into a one-step self-etch adhesive to increase dentin bond strength
T2 - Effect of application time
AU - Kuno, Yusuke
AU - Hosaka, Keiichi
AU - Nakajima, Masatoshi
AU - Ikeda, Masaomi
AU - Klein, Celso Afonso
AU - Foxton, Richard M.
AU - Tagami, Junji
PY - 2019/1/1
Y1 - 2019/1/1
N2 - The purpose was to evaluate the effect of a hydrophilic amide monomer on μTBS of one-step adhesive to dentin at different application times. Clearfil Universal Bond Quick (UBQ), experimental adhesive (UBQexp; same compositions as UBQ but hydrophilic amide monomer was replaced with 2-hydroxyethyl methacrylate), Clearfil SE ONE and Clearfil SE Bond were applied to midcoronal dentin prepared with 600-grit SiC at different application time (0, 10, 20 and 40 s). Water sorption (Wsp) and the ultimate tensile strength (UTS) of polymerized adhesives were also measured. UBQ showed significantly lower Wsp and higher UTS than UBQexp. At each application time, UBQ exhibited significantly higher μTBSs than UBQexp. UBQ showed the highest μTBS at 0 s application time among all the adhesives. When the application time was prolonged from 0 s to 10 s, only UBQ showed no significant difference. The hydrophilic amide monomer increased µTBS with reduction in Wsp and increase in the UTS and may allow a shortened application time.
AB - The purpose was to evaluate the effect of a hydrophilic amide monomer on μTBS of one-step adhesive to dentin at different application times. Clearfil Universal Bond Quick (UBQ), experimental adhesive (UBQexp; same compositions as UBQ but hydrophilic amide monomer was replaced with 2-hydroxyethyl methacrylate), Clearfil SE ONE and Clearfil SE Bond were applied to midcoronal dentin prepared with 600-grit SiC at different application time (0, 10, 20 and 40 s). Water sorption (Wsp) and the ultimate tensile strength (UTS) of polymerized adhesives were also measured. UBQ showed significantly lower Wsp and higher UTS than UBQexp. At each application time, UBQ exhibited significantly higher μTBSs than UBQexp. UBQ showed the highest μTBS at 0 s application time among all the adhesives. When the application time was prolonged from 0 s to 10 s, only UBQ showed no significant difference. The hydrophilic amide monomer increased µTBS with reduction in Wsp and increase in the UTS and may allow a shortened application time.
KW - Application time
KW - Hydrophilic amide monomer
KW - Micro-tensile bond strength
KW - Self-etch adhesive systems
UR - http://www.scopus.com/inward/record.url?scp=85075804449&partnerID=8YFLogxK
U2 - 10.4012/dmj.2018-286
DO - 10.4012/dmj.2018-286
M3 - Article
AN - SCOPUS:85075804449
SN - 0287-4547
VL - 38
SP - 892
EP - 899
JO - Dental Materials Journal
JF - Dental Materials Journal
IS - 6
ER -