parcelling technique Flashcards
Also known as the extension cone paralleling technique (xcp) and long cone technique
paralleling technique
parallel
straight lines
separated by the same distance and never intersecting
perpendicular
intersecting at or forming a right angle
the long axis of the tooth
an imaginary line that divides the tooth longways into two halves
central ray
central portion of the primary beam of x-radiation
bisect
to divide into two equal parts
device used to position an intraoral receptor in the mouth and retain the receptor in position during exposure
beam alignment device aka film holders
size 1
anterior; placed in a vertical position
size 2
posterior; placed in a horizontal position
procedures
patient preperation, equpiment preperation, exposure sequence, receptor placement
how should the maxilla be postioned
parallel to the floor
which xrays should you do first in order
maxillary right Q1
mandibular left Q3
which Xrays should you do second in order
maxillary left Q2
Mandibular right Q4
which region is less likely to cause gagging
premolar region
anterior receptors =
vertical placement
