7.2

Receptor Holders

A receptor holder is a device used to hold and align an intraoral dental x-ray receptor in the mouth.

Different types of receptor holders are:

• Disposable Styrofoam bite-block
• Molded-plastic devices (e.g., Snap-A-Ray)
• EndoRay
• Uni-bite

See the examples of the different types of receptor holders in the slides below.

Beam Alignment Devices

A beam alignment device is an instrument used to help the dental radiographer position the PID relative to the tooth and receptor.

Different types of beam alignment devices are:

• Rinn XCP and BAI Instruments (available with bite-blocks designed to hold traditional film or digital sensors)
• Collimating device (for use in conjunction with a beam alignment device and may be retrofitted onto the end of a standard PID to restrict the size of the x-ray beam and limit radiation exposure)

See the examples of the different types of receptor holders in the slides below.

Media Attributions

• Iannucci & Howerton: Dental Radiography Principles and Techniques, 6th Edition, Chapter 7, CC BY-NC-ND