Table 1.

One-way ANOVA test result for enamel surface damage from three groups

Post-debond enamel loss measured on OCT in µm	plier	Ultrasonic scaler	Laser
N	10	23	12
Mean	31.1	55.7	33.7
SD	6.3	10.0	6.0
Minimum	22.0	42.0	24.0
Maximum	42.0	84.0	42.0
First quartile	25.5	48.0	28.5
Median	31.0	54.0	33.0
Third quartile	36.5	58.0	39.5

F=43.523 P<0.001