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Drs. Smith and Domingue
200 Beaullieu Drive Bldg. 2 Lafayette, LA 70508

Why didn't my cavity show up on my x-rays?

Dental x-rays are not perfect detection tools. They are just that—tools. That means that occasionally you could have a condition that does not readily show itself in our digital imaging.

Limitations of Dental X-Rays

A few explanations may be accurate. First, your cavity may be so small it did not show up on your dental x-rays. A very small cavity has not yet caused enough damage to be visible through x-ray technology.

Secondly, your cavity could be hiding behind an existing filling. When you get decay near an existing filling, we call this secondary decay. Fillings are opaque and may actually block out part of your tooth from being x-rayed, rendering it invisible. 

Thirdly, your teeth could overlap. If you have very close teeth, taking an x-ray without overlap may be impossible. Additionally, when you have very close teeth, getting decay between them is more likely.

Another reason decay may not show up on your x-ray is that it could have started after your last set of x-rays. Your teeth are susceptible to decay all of the time, especially if you eat sugary or high acid foods. It is quite possible your decay did not develop until after your last dental exam and last set of x-rays.

Contact Our Lafayette Dental Clinic

Do you want to learn more about the dental x-ray technology we use at Drs. Smith and Domingue? Please contact our Lafayette LA dental clinic.

If you have difficulty using our website, please email us or call us at (337) 235-1523
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In response to the ADA and CDA recommendations regarding the COVID-19 virus, our office will be temporarily closed. Our staff will continue to respond to calls and emails during this time. Patients with a dental emergency will still be provided with care as needed. New and existing patients are also welcome to call or email to schedule appointments for when we return. Thank you for your understanding!