A Study of Air Scaler

In an attempt to determine how the degree of the experimental calculus removal and roughness of the metallic plate would be affected by air scaler and ultrasonic scaler, quantitative measurement and morphological studies were made. The results obtained were as follows: 1. On the calculus removal, larger effect was obtained by ultrasonic scaler than by air scaler. 2. On the roughness of the metallic plate, larger defect was observed by ultrasonic scaler than by air scaler. 3. Like rippling waves were observed under ultrasonic scaler and air scaler scanning electron microscopically.