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CH. 17

Paralleling Technique

TermDefinition
Anterior region uses size 1 receptor, narrow and vertical always 1st
Posterior Region uses size 2 receptors, sideways horizontal
5 rules with paralleling technique receptor must cover area of interest, receptor must be positioned parallel to long axis of tooth, central ray must be perpendicular to receptor/long axis of tooth, central ray must be directed through contact areas, x-ray beam must be centered over recept
Object receptor distance distance between tooth and receptor must be increased to keep receptor parallel with long axis of tooth
Target receptor distance distance between source of x-rays and receptors
Paralleling technique allows PID to be parallel to long axis of tooth
Torus boney growth (can be md or mx and can affect receptor)
Main disadvantage of parallel technique receptor placing because of small mouth, shallow palate
Main advantages accuracy, simplicity, distortion
XCP extension cone paralleling
Size receptor used for posterior XCP size 2
What beam alignment devices are recommended in parallel technique to reduce radiation exposure Rinn XCP
How is a patient head positioned before exposing receptors
Created by: user-1888637
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