Bitewing vs Periapical X-Rays: What Dental Teams Should Know


Bitewing and periapical X-rays are two of the most common images taken in a dental clinic. They look similar, but they serve different purposes.
Knowing the difference helps your team capture the right image the first time. Here is a clear comparison.
What a Bitewing X-Ray Shows
A bitewing captures the crowns of the upper and lower teeth in one image.
It is mainly used to check for decay between teeth and to monitor bone levels.
What a Periapical X-Ray Shows
A periapical image shows the entire tooth, from the crown to the tip of the root, plus the surrounding bone.
It is used to look at the root, the surrounding structures, and signs of infection or injury.
When Each One Is Used
In practice, the two often work together:
- Bitewings for routine decay checks
- Periapicals for diagnosing a specific tooth or problem
- Both as part of a full series when needed
Why Image Quality Matters for Both
Whichever image you take, it is only useful if it is clear and consistent.
A blurry or poorly exposed image can hide decay or a root problem, which leads to retakes and extra exposure.
Consistent quality assurance keeps both types of image diagnostic.
Get It Right the First Time
Reliable equipment and steady image quality reduce retakes for every kind of X-ray.
The Phantom XY System helps clinics keep image quality high across all their dental imaging.
Want sharper images and fewer retakes? Book a demo.






