Shear bond strengths of one-bottle adhesives to moist enamel.
OBJECTIVE
This study evaluated bond strengths of six one-bottle bonding agents and a control (primer plus unfilled resin) to moist enamel.


METHODS
One-hundred and five bovine teeth were randomly assigned to seven groups of 15. Enamel was etched for 15 seconds with 35% phosphoric acid. Etched enamel was rinsed, and excess water was blotted with tissue paper. Following application of the adhesive, composite resin was bonded using a gelatin capsule technique. Shear bond strengths to enamel were determined using a universal testing machine (Instron Corp., Canton, Massachusetts).


RESULTS
Mean bond strengths ranged from 21.9 MPa for OptiBond Solo (Kerr Corp., Orange, California) to 29.6 MPa for Prime & Bond 2.1 (Dentsply/Caulk, Milford, Delaware). Prime & Bond 2.1 had a significantly higher mean bond strength than the other adhesives.


CONCLUSIONS
The results of this study suggest that all of the one-bottle systems tested should provide clinically acceptable bonding to moist enamel.
Swift
E J
EJ
Department of Operative Dentistry, University of North Carolina, Chapel Hill, USA.
Perdigão
J
J
Heymann
H O
HO
Ritter
A V
AV
D000818:Animals; D017438:Bisphenol A-Glycidyl Methacrylate; D002417:Cattle; D001840:Dental Bonding; D003743:Dental Enamel / Q000737:chemistry; D017220:Dentin-Bonding Agents; D008422:Materials Testing; D008689:Methacrylates; D011109:Polymethacrylic Acids; D011897:Random Allocation; D019279:Resin Cements; D013718:Tensile Strength; D014867:Water / Q000737:chemistry
C103506:Bis-GMA, BPDM, HEMA dental-bonding resin; D017220:Dentin-Bonding Agents; D008689:Methacrylates; C092987:Optibond; D011109:Polymethacrylic Acids; C103500:Prime & Bond; D019279:Resin Cements; C084018:Scotchbond Multi-Purpose; C115612:single bond; D014867:Water; C074811:Tenure adhesive; D017438:Bisphenol A-Glycidyl Methacrylate