Effect of remaining dentin thickness on microtensile bond strength of current adhesive systems.
The purpose of this study was to evaluate the effect of remaining dentin thickness (RDT) on the bond strength of current adhesive systems. Third molars were randomly allocated among four groups depending on the adhesive system used: Clearfil SE Bond ONE (SE1), G-Bond PLUS (GB), BeautiBond (BB), and Clearfil Mega Bond (MB). Bonded specimens were stored in water at 37°C for 24 h. Teeth were then sectioned perpendicular to the adhesive interface to produce beams. After measuring RDT of each beam, microtensile bond strength test was carried out using a universal testing machine at a crosshead speed of 1 mm/min. All data were analyzed by linear regression analysis. Bond strengths of one-step self-etch materials used in this study increased with an increase in RDT. In contrast, that of two-step self-etch adhesive system was not affected by RDT.
Department of Restorative Dentistry, Division of Oral Health Science, Graduate School of Dental Medicine, Hokkaido University.
Shihchun
S
Ting
Afm Almas
AA
Chowdhury
Feng
F
Pan
Jiale
J
Fu
Jihow
J
Sun
Shinichi
S
Kakuda
Shuhei
S
Hoshika
Yasuhiro
Y
Matsuda
Takatsumi
T
Ikeda
Yasuko
Y
Nakaoki
Shigeaki
S
Abe
Yasuhiro
Y
Yoshida
Hidehiko
H
Sano
D001840:Dental Bonding; D003799:Dental Stress Analysis; D003804:Dentin / Q000737:chemistry*; D006801:Humans; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D008964:Molar, Third / Q000648:ultrastructure*; D011897:Random Allocation; D013718:Tensile Strength