After preparing a site in the mouth of a patient to receive a dental prosthesis, the dental surgeon projects optically a grating upon said site in {TAIL ~ the mouth} of the patient and generates an interference pattern representing a holistic impression of {HEAD ~ said site} and its relationship to adjacent structures 
After preparing a site in the mouth of a patient to receive a dental prosthesis , the dental surgeon projects optically a grating upon said site in { TAIL ~ the mouth } of the patient and generates an interference pattern representing a holistic impression of { HEAD ~ said site } and its relationship to adjacent structures
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH