Shear bond strength of seventh generation bonding agents on dentin of primary teeth--an in vitro study.
This controlled, randomized, in vitro study evaluated the shear bond strength of several seventh generation bonding agents on the dentin of primary teeth. Six different adhesives were used: Xeno IV, Clearfil S3 Bond, Adper Prompt-L-Pop, AdheSE One, Bond Force, and Optibond (control). Ninety primary teeth were prepared by wet grinding with a 320-grit silicon carbide paper on a polishing wheel running at 110 RPM. After 24 hours of storage in water, shear bond strengths of each group were determined.  The mean shear bond strength of the tested adhesive systems to primary dentin was 12.27 MPa. One-way ANOVA testing showed a statistically significant difference between adhesive products (P < 0.001). Tukey HSD post hoc tests were used to assess which means were significantly different from one another. There was no statistically significant difference between the fifth generation adhesive system (Optibond) and the two seventh generation systems (Xeno IV and Bond Force), with Optibond exhibiting a lower mean shear bond strength compared to Bond Force. Within the limitations of this study, there is a significant difference between seventh generation bonding materials. Bond Force and Optibond appear to exhibit higher shear bond strengths than the other products.
Department of Pediatric Dentistry, Tufts School of Dental Medicine, Boston, MA, USA.
Geoffrey
G
Gonzalez
Alfred P
AP
Rich
Matthew D
MD
Finkelman
Catherine
C
Defuria
D000180:Acrylic Resins / Q000737:chemistry; D017554:Carbon Compounds, Inorganic / Q000737:chemistry; D001840:Dental Bonding; D003804:Dentin / Q000648:ultrastructure*; D017220:Dentin-Bonding Agents / Q000737:chemistry* / Q000145:classification / Q000592:standards; D006801:Humans; D008422:Materials Testing; D019279:Resin Cements / Q000737:chemistry; D033081:Shear Strength; D017655:Silicon Compounds / Q000737:chemistry; D013314:Stress, Mechanical; D013997:Time Factors; D014094:Tooth, Deciduous / Q000648:ultrastructure*; D014867:Water / Q000737:chemistry
D000180:Acrylic Resins; C489662:AdheSE cement; D017554:Carbon Compounds, Inorganic; C505694:Clearfil S3 Bond; D017220:Dentin-Bonding Agents; C092987:Optibond; C408584:Prompt L-Pop; D019279:Resin Cements; D017655:Silicon Compounds; D014867:Water; C022088:silicon carbide