Last updated 04.14.2026
How often do you need dental X-Rays?
Learn how often dental X-rays are recommended, what affects your schedule and why Aspen Dental providers tailor imaging to your needs.
Most healthy adults need bitewing X-rays every 18–36 months — not at every checkup. The right schedule depends on your age, oral health history and risk factors. X-rays detect problems a visual exam cannot see: cavities forming between teeth, early bone loss and changes developing below the gumline. That is why frequency is based on your individual picture, not a fixed calendar.
What you'll learn in this article:
Low-risk adults typically need bitewing X-rays every 18–36 months, not at every visit
Children and higher-risk adults need X-rays more often because their oral health changes faster
Risk factors like gum disease, dry mouth or frequent cavities shorten your recommended interval
Digital X-rays deliver minimal radiation — roughly equivalent to one day of natural background exposure from the environment
Skipping X-rays may allow hidden problems to advance silently until they require more complex treatment
If you are unsure when your next set of X-rays are due, schedule an appointment with your nearest Aspen Dental provider.
There is no one-size-fits-all schedule
The American Dental Association (ADA) is clear: no universal X-ray timetable applies to every patient.1 Frequency depends on your oral health, age and active risk factors. For example, a patient with a decade of clean checkups is in a very different situation from someone managing gum disease or recurring cavities.
That variability is intentional. The ADA recommends X-rays only when clinically necessary; ordering them too often means avoidable exposure. Ordered too infrequently, they miss problems only visible on film. Your dental provider sets the right schedule based on your specific health history.
What factors put you in the higher-frequency category?
Your dental provider may recommend more frequent X-rays if you:
Have a history of frequent cavities or multiple fillings
Have gum disease or measurable bone loss around teeth
Have dry mouth caused by medication or a health condition
Smoke or use tobacco products
Have diabetes, which raises the risk of gum disease
Are currently in braces or have had recent significant dental work
Are a new patient whose dental history is not yet on file
If none of these apply and your checkups have been consistently clear, you most likely fall into the lower-frequency category.
How often each type of patient typically needs X-rays
Low-risk adults:
Bitewing X-rays every 18–36 months. This applies to patients with healthy teeth, no active gum disease and a stable dental history.
Higher-risk adults:
Every 6–18 months. Patients managing active decay, gum disease or ongoing concerns need closer monitoring.
Older adults:
More frequent monitoring may be recommended for patients over 65, particularly those taking medications that cause dry mouth, which raises cavity risk. Bone density changes and gum recession are also more common with age.
Children and teenagers:
Every 6–18 months, depending on cavity risk and development stage. Because teeth and jaws are still growing and decay can progress quickly, your dental provider will assess your child's specific needs.
New patients:
A full-mouth series or panoramic X-ray is standard at your first visit. Without a complete baseline image, your provider cannot safely evaluate existing restorations or detect problems inherited from prior care.
What are the different types of dental X-rays?
Not all X-rays show the same thing. Your dental provider selects the type based on exactly what they need to see.
Bitewing X-rays are the most common and show upper and lower back teeth together in a single image. They are the primary tool for finding cavities between teeth and detecting early changes in the bone supporting your teeth.
Periapical X-rays show the full length of individual teeth from crown to root tip. They help identify abscesses, root infections and problems in the surrounding bone that bitewings would not fully capture.
Panoramic X-rays capture the entire mouth — all teeth, the jaw, sinuses and nearby structures — in one wide image. They are used to assess wisdom teeth, jaw health and overall dental development. Knowing which X-ray your dental provider is recommending — and why — helps put the next question in context.
Is the radiation from dental X-rays something to worry about?
For most patients, no. The ADA follows the ALARA principle — "As Low As Reasonably Achievable" — meaning your provider only orders X-rays when the clinical benefit clearly justifies the exposure.1
Modern digital X-rays use significantly less radiation than older film-based methods. A full set of bitewing X-rays delivers roughly the same radiation dose as a single day of natural background exposure from the environment.2 When ordered appropriately, the diagnostic benefit far outweighs the minimal exposure.
What you miss when you skip X-rays
Cavities forming between teeth and early bone loss from gum disease are both invisible during a standard visual exam. Without X-rays, both can advance silently until they require far more involved treatment.
A small cavity caught on X-ray is typically a straightforward filling. Left undetected, the same cavity can reach the inner layer of the tooth and eventually require a root canal, a crown or an extraction. X-rays do not just find problems — they find them while they are still simple to treat.
When to see your provider
If you cannot remember your last set of X-rays, or if you recently changed providers, schedule a full evaluation. A dental provider will review your history, identify your current risk level and set the right interval for you.
Visit an Aspen Dental office near you to schedule your evaluation and find out exactly where you stand.
How often do you really need dental X-rays? FAQs
Does dental insurance cover X-rays every year?
Most dental plans cover bitewing X-rays once every 12 months as part of their preventive benefit, though this varies by plan. Insurance coverage and medical necessity are two separate things. Your provider determines how often X-rays are clinically appropriate — your plan determines what it will pay for. The two do not always align, and your provider's recommendation should take precedence.
I am pregnant. Is it safe to get dental X-rays?
When dental care is needed during pregnancy, X-rays can still be taken safely with proper protective shielding. Routine X-rays are typically deferred unless there is an active clinical concern. Let your dental provider know you are pregnant so they can adjust accordingly.
What happens if I have not had X-rays in several years?
Your dental provider will evaluate your current oral health and recommend the appropriate X-rays based on your needs. Depending on how long it's been and your risk factors, that may include a full-mouth series to establish a baseline or bitewing X-rays to check for cavities and other recent changes.
A long gap between X-rays doesn't automatically mean there's a problem. It simply means your provider needs an up-to-date view of your teeth and supporting structures to make informed recommendations.
Are digital X-rays meaningfully safer than older film X-rays?
Yes. Digital sensors require significantly less radiation to produce a clear image compared to traditional film X-rays. They also generate images immediately, reducing the chance of a retake, which further limits total exposure. Most Aspen Dental offices use digital radiography as standard.
Sources
1American Dental Association – X-Rays/Radiographs (Updated 2026): https://www.ada.org/resources/ada-library/oral-health-topics/x-rays-radiographs
2U.S. Food and Drug Administration / American Dental Association – Dental Radiographic Examinations: Recommendations for Patient Selection and Limiting Radiation Exposure: https://www.fda.gov/media/84818/download
