19.2

Beam Alignment Devices and Receptor Holding Devices

A device is used to position the receptor in the mouth and retain the receptor during exposure. Paralleling technique requires the use of a beam alignment instrument or a receptor-holding device to position the receptor parallel to the long axis of the tooth. Below are images of various beam alignment devices and receptor holding devices.

Examples of commercially available intraoral beam alignment devices are:

Practice Makes Perfect

Receptors Used for Paralleling Technique

Always ask the dentist what size receptors to use and how many anterior exposures to take.

Size 1 Receptor
  • Used in the anterior region
  • Long portion in the vertical direction
Size 2 Receptor
  • Used in the posterior region
  • Long portion in the horizontal direction

Media Attributions

  • Iannuci: Dental Radiography, 6th Edition, Chapter 19, CC BY-NC-ND

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DE 115: Dental Radiography Copyright © 2024 by verabodnarchuk; monicacoggin; alisonloach; and rbhatia2 is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License, except where otherwise noted.

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