what healthcare professional and abbreviation is described in the paragraph?

a (three blank spots) is a healthcare professional who works under the supervision of a licensed dentist in treating patients.
the abbreviation for this healthcare professional is
(blank spot)

The patient had a wire localization performed by radiology and was taken to the operating room. under local anesthesia of the left breast was prepped and draped in a sterile manner. a breast line incision was made through the entry point of the wire, and a core of tissue surrounding the wire approximately 1x2cm was removed