Can I ask my dentist to take fewer X-rays?

Yes, you can discuss your preferences with your dentist. However, understand that reducing X-ray frequency means your dentist has less information to work with. Problems that could have been caught early may go undetected. Your dentist will note any refusal and the limitations it places on their ability to diagnose.

My previous dentist took X-rays recently. Do I need new ones?

Your new dentist will likely want their own set, even if you had X-rays recently elsewhere. They need images taken with their own equipment and calibration to make accurate diagnoses. They also need a baseline to compare against at future visits. You can request your records be transferred, but a new set is typically still recommended.

How often do children need X-rays?

The American Academy of Pediatric Dentistry recommends bitewing X-rays every 6–12 months for children at high risk for cavities, and every 12–24 months for lower-risk children. Children benefit greatly from X-rays because their teeth change rapidly and cavities can progress quickly.

Do I need X-rays if I have no cavities?

Yes — X-rays detect more than just cavities. They show bone levels (important for gum disease monitoring), root health, impacted teeth, and other conditions that have nothing to do with cavities. Even patients with excellent oral health benefit from periodic X-rays.

What if I am pregnant?

Dental X-rays during pregnancy are generally considered safe when clinically necessary. We use a lead apron and thyroid collar for all patients. If you are pregnant, let us know and we will discuss whether X-rays are needed at your visit.

Are X-rays covered by dental insurance?

Most dental insurance plans cover bitewing X-rays once per year and a full-mouth series every 3–5 years. Coverage varies by plan. Our team can verify your benefits before your appointment.

How Often Do I Need Dental X-Rays? | Dental Learning Center

Quick Answer

Calendar and clock illustration representing dental X-ray scheduling

How often you need dental X-rays depends on your age, oral health history, and risk for decay or gum disease. Most adults with good oral health need bitewing X-rays once a year and a full set every 3–5 years. Children and patients at higher risk for cavities may need X-rays more frequently. New patients typically receive a full set at their first visit regardless of when they last had X-rays elsewhere.

What You'll Learn

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Adult frequency

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Children's schedule

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High-risk factors

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New patient X-rays

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Is There a One-Size-Fits-All Schedule?

No — and that is intentional. The American Dental Association and the FDA recommend that X-ray frequency be individualized based on each patient's specific risk factors, not a blanket schedule applied to everyone.

Your dentist considers your cavity history, gum disease status, age, dry mouth, diet, smoking history, and how long it has been since your last X-rays when deciding what type of X-rays to take and how often.

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Recommended Frequency by Patient Type

For adults with good oral health and no recent dental problems, bitewing X-rays are typically recommended once a year and a full-mouth series every 3–5 years. For adults with a history of cavities, gum disease, or other risk factors, bitewings may be recommended every 6 months.

For children, the American Academy of Pediatric Dentistry recommends bitewing X-rays every 6–12 months for children at high risk for cavities, and every 12–24 months for children at lower risk. Children's teeth change quickly, and X-rays help monitor development and catch problems early.

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Factors That Increase X-Ray Frequency

Certain conditions and habits increase the likelihood of dental problems developing between visits, which means more frequent X-rays are appropriate.

Higher-risk factors include a history of frequent cavities, current gum disease or bone loss, dry mouth (from medications or medical conditions), smoking or tobacco use, a high-sugar diet, orthodontic treatment, crowns or bridges that need monitoring, and a family history of significant dental problems.

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Why New Patients Need a Full Set

Your new dentist has no baseline

Without X-rays from your new dental office, your dentist cannot compare current images to past ones — which is how changes and early problems are detected.

Previous X-rays may be outdated

Even if you had X-rays at another office recently, your new dentist needs their own set taken with their equipment and calibration to make accurate diagnoses.

A full series reveals what bitewings miss

Bitewing X-rays only show the crowns of teeth. A full-mouth series includes periapical images that show roots, bone levels, and the entire tooth — essential for a complete picture.

It establishes your record at the practice

Your full-mouth series becomes the reference point for all future X-rays at Merchants Walk Dental. Future changes — bone loss, new decay, shifting teeth — are measured against this baseline.