How Often Do Kids Need Dental X-Rays?

Written By: Logan Grover, Content Writer

Reviewed By: Dr. Alison Grover, Board-Certified Diplomate Pediatric Dentist

Last Reviewed: October 9, 2026

How often kids need dental X-rays depends on 2 things: whether I can see between their back teeth, and how prone they are to cavities. That's why some checkups end with zero X-rays. A toddler whose back teeth still have gaps may not need any yet.

Kids need dental X-rays on a schedule set by cavity risk and tooth development. A 2026 guideline from the American Dental Association (ADA) calls for bitewings every 6 to 12 months for higher-risk children and every 12 to 24 months for lower-risk children. Both start once the back teeth touch. Low-risk teens wait 18 to 36 months.

The ADA wrote that January 2026 guideline with the American Academy of Oral and Maxillofacial Radiology (AAOMR). It updates the 2012 ADA and FDA recommendations on which patients need X-rays and how often. Checkups at Mini Miners follow the American Academy of Pediatric Dentistry's every-6-months schedule, adjusted for each child's risk, so a low-risk child won't need X-rays at every visit.

The 2026 Bitewing Schedule by Age and Cavity Risk

The schedule has 3 stages of tooth development and 2 risk levels. Every interval except the low-risk teen one applies only when the dentist can't see or probe between the back teeth.

Your child's teeth	Higher cavity risk	Lower cavity risk
Baby teeth only	Every 6 to 12 months	Every 12 to 24 months
Baby and adult teeth mixed	Every 6 to 12 months	Every 12 to 24 months
Adult teeth (teens)	Every 6 to 12 months	Every 18 to 36 months

Source: ADA and AAOMR, 2026.

Risk isn't fixed. A child's group can change from one exam to the next, so the interval can change too.

Baby teeth are the reason the intervals are counted in months. Decay moves faster through a baby tooth than an adult tooth, because baby tooth enamel is thinner.

Research in the Journal of Clinical Pediatric Dentistry found a cavity in a baby tooth took about 10 months to travel from the outer enamel to the dentin, and roughly another 17 months to reach the inner dentin. Checkups every 6 months are built to catch decay while it's still shallow and still cheap to fix.

Why Can a Checkup End With Zero X-Rays?

Because the guideline ties bitewings to what the dentist can't see, not to the calendar. If there's no decay and the back teeth still have gaps, I can check those sides without a picture.

The guideline puts it in 1 sentence: "Patients without evidence of disease and with open proximal contacts may not require a radiographic examination." Open proximal contacts means gaps between the back teeth.

That cuts against a line on other dental sites: that every new patient needs a baseline set of X-rays, whatever their risk. The guideline doesn't ask for one from a young child with gaps and no decay. A child's first set of bitewings usually waits for the back teeth to touch, unless there's decay or an injury to check.

At Mini Miners, we take low-radiation digital X-rays as needed to see between teeth and below the gumline. They're 1 part of a pediatric dental exam, and we take them only when the picture will change what we do.

How Safe Is the Radiation in a Child's Dental X-Ray?

Dental X-ray doses "carry negligible risk" when dentists use dose-reduction methods, according to the 2026 guideline. Those methods are choosing patients carefully, narrowing the X-ray beam, and adjusting exposure settings.

Children still need the extra care. From the guideline: "Children and young adults are more susceptible to the effects of radiation, so radiographs should be ordered judiciously." That's the case for taking the fewest pictures that answer the question.

The same guideline puts a number on 1 trade-off. Extraoral bitewings, taken from outside the mouth, give 3 times the dose of regular bitewings and may show less detail. It allows them for children with special health care needs and for kids who can't tolerate a sensor in the mouth.

Why Does My Child Still Wear a Thyroid Collar in Colorado?

Because Colorado's radiation rule still requires a thyroid collar for kids' X-rays taken inside the mouth. National guidance moved away from shielding, but the state rule still calls for one.

The ADA and AAOMR's 2026 guideline says routine lead shielding for children "is not indicated," because dose-reduction methods leave dental X-ray doses at negligible risk.

Colorado's radiation rule reads differently. Section 6.7.3.4 says: "Excluding cases in which shielding would interfere with the diagnostic procedure, thyroid shielding shall be required for pediatric patients when performing intra-oral imaging."

In a Colorado dental office, the state rule is the one that applies. So the national guidance is right about the science, and the collar stays on in Colorado because of the law.

What Changes When the X-Ray Unit Is Handheld

The picture is the same kind of bitewing. What changes is that a team member holds the unit, and Colorado adds rules for everyone nearby.

At Mini Miners Pediatric Dentistry, that means X-rays happen right in the treatment room. Your child stays in the chair and keeps watching the movie on the ceiling TV, with no separate X-ray room and no moving around. Kids pick that movie from more than 70, and our sensors are sized for a child's mouth.

Colorado's rules for handheld units include 2 that parents notice. If the unit has a scatter shield, it must be installed and used. And no bystanders can be within 2 meters (more than 6 feet) of the patient during the exposure. Parents are always welcome in our treatment rooms, so if you're in the room, plan to step back for that moment.

When Kids Need a Panoramic or 3D Scan

Later and less often than bitewings. Under the 2026 guideline, a first panoramic X-ray should wait until the first adult molars and all 4 adult lower front teeth are fully in. The exception is a problem the dentist suspects sooner.

After that, repeat panoramics "should be avoided unless justified by means of considerable changes in clinical status or developmental stage." A panoramic on a fixed 3- to 5-year cycle, which some offices still list, isn't part of the guideline.

What the guideline does support is a panoramic for a clinical reason, like teeth coming in late or an orthodontic concern. That's why a panoramic can come up during a Phase 1 orthodontics evaluation.

3D cone-beam CT (CBCT) has a narrower role. Per the guideline, the evidence doesn't support CBCT for finding cavities. It's for cases where 2D X-rays don't give enough information, such as trauma, suspected disease, or finding an impacted tooth.

Both scans take longer than a bitewing, so the guideline asks dentists to weigh whether a child can follow instructions and hold still.

When Your Child Can't Hold Still for X-Rays

Mini Miners has 3 ways to help: a chair that works sitting up, more time, and sedation when it's needed.

Our chairs recline partway, so a child who won't lie flat can still have X-rays sitting up. Kids with special needs get patient-led pacing and modified appointment lengths through our special needs care, with extra time scheduled so the visit stays unhurried.

When a child can't get through X-rays awake, moderate sedation is often all they need. Our sedation options run from mild nitrous oxide to deeper sedation with an anesthesiologist.

What Kids' X-Rays Cost at Mini Miners

On the Mini Miners Membership Plan, needed X-rays are included, as decided by the doctor at the exam. The plan costs $300 a year for toddlers from first tooth to age 3, or $250 for each toddler sibling. Kids 4 and up are $420 a year, or $360 for each additional sibling.

Both plans include 2 cleanings, 2 exams, and 2 fluoride treatments a year, with no deductibles, pre-approvals, or waiting periods, on a 1-year commitment. The plan isn't dental insurance. If you have insurance, X-ray coverage depends on your plan, and we accept most major insurance plans.

Check Your Child's X-Ray Schedule in Erie

Every child gets a different answer to how often kids need dental X-rays. Ask at the next checkup which risk group yours is in and when the next bitewings are due. Call (303) 500-3202 or text (720) 734-5890 to book checkups in Erie at 61 Erie Pkwy, Unit 101.

FAQs

How often do kids need dental X-rays if they've never had a cavity?

Kids at low cavity risk need bitewings every 12 to 24 months once their back teeth touch, under the 2026 ADA and AAOMR guideline. If the back teeth still have gaps and there's no decay, they may not need X-rays yet.

How often do kids need dental X-rays once they're teenagers?

Teens at low cavity risk can go 18 to 36 months between bitewing sets, the longest gap the 2026 guideline gives young patients. Teens at higher risk stay at every 6 to 12 months. A panoramic X-ray comes up only for a reason, such as an orthodontic concern or a big change in development.

Do kids need dental X-rays every 6 months?

Only some kids at higher cavity risk, and even then the 2026 guideline gives a range of 6 to 12 months. Lower-risk kids need bitewings every 12 to 24 months, so they don't need X-rays at every 6-month checkup.

Does my child need a new panoramic X-ray every few years?

No. Repeat panoramic X-rays should be avoided unless there's a considerable change in your child's mouth or development, per the 2026 guideline. The first one should wait until the first adult molars and all 4 adult lower front teeth are fully in, unless the dentist suspects a problem.

Are handheld dental X-ray machines safe for kids?

Radiation doses from dental imaging carry negligible risk when dentists use dose-reduction methods, according to the 2026 ADA and AAOMR guideline. Colorado adds its own rules for handheld units: a scatter shield must be installed if the unit has one, and no bystanders may be within 2 meters (more than 6 feet) of the patient during the exposure.

Can my child have dental X-rays sitting up?

Yes. Our chairs recline partway, so a child who won't lie flat can still have X-rays sitting up. When a child can't get through X-rays awake, moderate sedation is often all they need.

Can my child get X-rays between scheduled checkups?

Yes. A fall, a toothache, or swelling can call for an X-ray of that area outside the regular schedule. Current Mini Miners patients can reach the on-call dentist by calling (303) 500-3202 and pressing 2.