Methods: New monomer system introduced in Adhese One Vivapen (Ivoclar/Vivadent, Lot K10655) adhesive system was compared with other self etch systems: AdheSe (Ivoclar/Vivadent, Lot G2718), Clearfil SE Bond (Kuraray Dental, Lot 4194), Clearfil S3 Bond (Kuraray Dental, Lot 41120), Unifil Bond (GC, Lot 0406021), Futura Bond NR (Voco, Lot 581031), Adper Prompt-L-Pop (3M Espe, Lot 223261) and etch and rinse systems: Single Bond (3M Espe, Lot 6FN) and Excite (Ivoclar/ Vivadent, Lot J14884) in combination with compomer Dyract (Dentsply, LOT 0304001162) and composite Tetric (Ivoclar/Vivadent, Lot E 46159) restaurations. Samples in the shape of cilinders were prepared in the teflon molds (3mm X 4mm). Cilinders were adhered to the tooth surface before testing. Testing of shear bond strenght was performed using Universal testing machine (Lrx Testing machine, AMATEK Lloyd Instruments Ltd). The type of fracture was assesed (adhesive, cohesive or mixed). Statistical analysis was performed using one way ANOVA and Tukey HSD test.
Results: There was no statistical difference between adhesive values of the tested adhesive systems and materials. The highest values of the shear bond test exhibited Clearfil S3 Bond (18,86 Mpa) and the lowest was assesed for the Adhese (15,97 Mpa). The differences between the values of different fracture types were not statistically significant.
Conclusion: Adhesion quality of new monomer formulation self etch adhesives is comparable to that of classical adhesive systems. Further laboratory evaluations are required to test adhesion quality of new monomer systems.