A right-handed dentist is placing a restoration and the assistant must position the stool and mobile cart. Using the clock concept with the patient's head at 12 o'clock, which range is the assistant's zone? A 12 o'clock to 2 o'clock B 7 o'clock to 12 o'clock C 4 o'clock to 7 o'clock D 2 o'clock to 4 o'clock
Practice questions based on the DANB Radiation Health and Safety (RHS), Infection Control (ICE), and General Chairside Assisting (GC) content outlines, CDC dental infection-prevention guidance, the OSHA Bloodborne Pathogens Standard, and ADA/FDA radiographic selection criteria. DANB, CDA, RHS, ICE, and GC are marks of the Dental Assisting National Board; this site is not affiliated with or endorsed by DANB. The duties a dental assistant may legally perform — and any radiography permit or certification required — are set by your own state dental board. Confirm current requirements with that board and with DANB before testing.
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