What can a dental provider see on your X-ray?

Your mouth hides a lot. A dental provider can check your teeth and gums with their eyes, but some areas are hard to see during a regular exam. X-rays provide a closer look between teeth, below the gums and beneath the surface. This gives your dental provider a fuller picture of your oral health. 

What you will learn in this article: 

• X-rays can find cavities between teeth that a regular exam would miss. 

• Bone loss from gum disease shows up on film before you feel any pain. 

• The ADA says radiation from dental X-rays is small compared to everyday sources.

• How often you need X-rays depends on your age, health and risk level.

If you have questions about why dental X-rays are needed or what yours may show, schedule an appointment with an Aspen Dental provider. They can examine your teeth, review your X-rays and explain what they find. 

Cavities hiding between teeth 

A dental provider can see the tops and fronts of your teeth. But the tight spaces between teeth are hard to check by eye. Decay there shows up as a dark shadow on an X-ray. The American Dental Association (ADA) notes that X-rays can uncover new cavities hidden from a visual exam.¹ Catching them early means less drilling and repair. 

Bone loss around your teeth 

Your teeth sit in your jawbone. Gum disease can slowly wear away that bone. The ADA explains that periodontal disease is a chronic infection that can destroy the structures holding your teeth in place, including the jawbone itself.² It can happen with no pain at first. On an X-ray, healthy bone sits close to each tooth's base. When bone is missing, the dental provider sees a gap where it used to be. Spotting this early gives you more options for care.  

Impacted teeth 

An impacted tooth is one that can’t come in the right way. It may be stuck in the bone or blocked by another tooth. Wisdom teeth are a common example. The ADA notes that an X-ray may uncover an impacted tooth that is not visible during the exam.¹ Your dental provider uses the image to plan the next step. 

Infections at the root 

An abscess is a pocket of infection at a tooth's root. The ADA explains it forms when pus builds up at the root tip in the jawbone.³ It can cause pain, but not always. On an X-ray, it can show up as a change in the bone near the root tip, which is how your dental provider often finds it. Finding it early means treatment can start before the infection spreads. 

Root and jaw problems 

The National Institute of Dental and Craniofacial Research explains that a dental provider may add an X-ray to the mouth exam when checking for osteonecrosis of the jaw. In this condition, part of the jawbone dies and may become exposed. The agency also recommends a complete dental exam with an X-ray before IV bisphosphonate treatment for cancer begins.⁴

Is radiation from dental X-rays a concern? 

It’s a fair question. According to the ADA, if you add up all the radiation a person is exposed to in daily life, dental X-rays make up a small slice of that total.⁵ Modern equipment and careful positioning also help keep your exposure as low as possible. 

How often will you need X-rays? 

There's no single answer. The ADA explains there's no fixed schedule: Your dentist weighs your age, how healthy your mouth is right now and whether you're at higher risk for problems before deciding when you're due for new images.⁵ A child with growing teeth may need them more often. An adult with healthy teeth may need them less. Your dental provider looks at your history to decide. 

If you’re unsure how often you need X-rays, talk with your dental provider. They can consider your age, oral health, dental history and risk of disease to decide when new images may be useful. 

What does a dental provider see on your X-ray? FAQs  

Still have questions about dental X-rays? These answers cover a few common concerns. 

Do dental X-rays hurt? 

No. You bite down on a small tab and the machine takes the image. It takes just a few seconds. 

Can I see what my dental provider found? 

Yes. Ask your dental provider to show you the images. They can walk you through what they see and what it means. 

What if a problem shows up? 

Your dental provider will explain what they found. They can go over your options and what comes next. Finding something early usually means treatment is more straightforward. 

What about X-rays during pregnancy? 

Tell your dental provider if you are pregnant or think you might be. They can decide whether to wait or use extra protection. 

Sources 

¹ American Dental Association, MouthHealthy: “X-rays.” https://www.mouthhealthy.org/all-topics-a-z/x-rays 

² American Dental Association: "Periodontitis." https://www.ada.org/resources/ada-library/oral-health-topics/periodontitis  
 
³ American Dental Association, MouthHealthy: "Abscess." https://www.mouthhealthy.org/all-topics-a-z/abscess 

⁴ National Institute of Dental and Craniofacial Research: “Osteonecrosis of the Jaw: Causes, Symptoms, and Treatments.” https://www.nidcr.nih.gov/health-info/osteonecrosis-jaw 

⁵ American Dental Association: “X-Rays/Radiographs.” https://www.ada.org/resources/ada-library/oral-health-topics/x-rays-radiographs