Violation

The air-water spray used as a coolant in high speed cutting of a cavity will 1. decrease pulp damage. 2. reduce frictional heat. 3. keep the operating site clean. 4. reduce clogging of cutting instruments.

(2) and (4)

(1) (2) (3)

(1) and (3)

All of the above.

(4) only

Please describe the matter of abuse