In which of the following situations can air abrasion not be used?: (A) Caries excavation, (B) Debriding pits and fissures, (C) Cavity preparation, (D) Stain removal
Answer is C. Although promoted for caries excavation, air abrasion is not able to produce well-defined preparation wall and margin details that are possible with conventional rotary cutting techniques.
Ref: Sturdevant's art and science of operative dentistry. 4th edition page 328