The system 19, wherein the scanner further comprises a video mode of operation in which {HEAD ~ a light source} illuminates {TAIL ~ the dentition} and an imaging device generates a video image of the dentition 
illuminates
The system 19 , wherein the scanner further comprises a video mode of operation in which { HEAD ~ a light source } illuminates { TAIL ~ the dentition } and an imaging device generates a video image of the dentition
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH