Glycolic acid and ultrasonic activation : effects on smear layer removal, dentin penetration, dentin structure and bond strength of the root dentin filling material
Glycolic acid (GA) has been tested as enamel and dentin etchant, and final irrigant for smear layer removal. This study evaluated the effects of GA and ultrasonic activation (US) on smear layer removal, dentin penetration, dentin structure and bond streng