Table 1.
Conditioning for control and experimental groups.
Groups | ||||
---|---|---|---|---|
I (Control) Phosphoric acid | II Self-Etching Primer (SEP) | III Er:YAG laser | IV Er:YAG laser | |
Enamel conditioning | Ultra-Etch, Ultradent Products, Inc. | Transbond Plus SEP, 3M Unitek | OPUS DUO Er:YAG + CO2, Lumenis | |
Concentration: 35% Time: 15 sec | Time: 5 sec | Frequency: 7 Hz Sapphire tip Ø: 1.3 mm Energy density: 11.0 J/cm2 |
Frequency: 12 Hz Sapphire tip Ø: 1.0 mm Energy density: 19.1 J/cm2 |