Help Anxious Patients See the Bigger Picture

Learn how advances in dental imaging and patient-centered communication can help address radiation concerns while supporting appropriate diagnostic imaging.

By Kristen Pratt Machado On Oct 6, 2026

Which advancement helps reduce radiation exposure by limiting the size of the X-ray beam?

Dentist positioning an intraoral X-ray unit for a patient

ArtistGNDphotography / E+

Digital image manipulation

Rectangular collimation

Increased exposure time

Conventional film

Correct! Wrong!

Rectangular collimation restricts the primary beam to a smaller area, reducing the amount of radiation reaching the patient and helping reduce scatter radiation.

Which approach is recommended when discussing dental X-ray radiation with concerned patients?

Patient positioned in a panoramic dental X-ray machine

South_agency / E+

Use technical terminology to provide a comprehensive explanation

Avoid discussing radiation risks unless the patient asks

Compare dental X-ray exposure with familiar sources of radiation

Emphasize the risks without discussing diagnostic benefits

Correct! Wrong!

Using familiar comparisons, such as natural background radiation, can make radiation exposure easier for patients to understand. Discussing both the risks and diagnostic benefits can also help build trust and support informed decision making.

According to updated American Dental Association recommendations, which statement regarding radiation protection is correct?

Digital tooth visualization above a gloved hand

Natali_Mis / iStock / Getty Images Plus

Lead aprons should always be used during dental radiography

Thyroid collars are required for all dental radiographs

Conventional film is preferred over digital imaging

Oral health professionals should minimize exposures and use cone-beam computed tomography only when diagnostically necessary

Correct! Wrong!

The American Dental Association recommendations emphasize limiting radiation exposure, using digital imaging and rectangular collimation, taking only necessary exposures, and reserving cone-beam computed tomography for situations in which it is diagnostically warranted.

Help Anxious Patients See the Bigger Picture

Congratulations, you scored 100%! You really know your stuff.