Self-etching primers--an alternative to the conventional acid etch technique?
METHODS
The aim of the present in vitro study was to evaluate the bonding capacity of three self-etching primers (Clearfil SE Bond [SE], Clearfil Liner Bond 2V [CLB], Novabond [NOVA]) to enamel. Two adhesive systems with a separate phosphoric acid etching procedure (Gluma Comfort Bond [GLU], Kurasper F [KU]) served as controls. 60 human incisors were used to evaluate shear bond strengths of composite cylinders to enamel.


RESULTS
Significant differences were found between the groups (p < 0.001). The mean value for groups GLU, KU, CLB and SE was 24 MPa. The shear bond strength recorded for the Novabond system was significantly lower (17 MPa).


CONCLUSIONS
The results of the present investigation indicate that enamel bonding especially with the self-etching primers CLB and SE is as effective as conventional phosphoric acid etching.
Fritz
U B
UB
Department of Orthodontics, University of Aachen, Germany. ulrikefritz@hotmail.de
Diedrich
P
P
Finger
W J
WJ
D000134:Acid Etching, Dental / Q000379:methods*; D006801:Humans; D008689:Methacrylates; D019279:Resin Cements
C029849:Clearfil Bonding Agent; C112274:Clearfil Liner Bond 2; D008689:Methacrylates; D019279:Resin Cements