G1: no ultrasonic vibration application (control group); G2: tip of the ultrasonic device was positioned perpendicularly to core surface and close to the incisal edge (Fig. 1A); G3: tip of the ...

The clinical features of dental erosion include the loss of surface characteristics, a melted appearance, the presence of cupping on occlusal and grooving on incisal surfaces and shallow concavities ...