Oral cancer screening at the dentist: what to expect

The short answer

An oral cancer screening is a quick, painless exam your dentist or hygienist does as part of a regular checkup. They look at and feel your lips, tongue, cheeks, gums, the floor and roof of your mouth, your throat and your neck for anything unusual. It takes only a few minutes.

Catching cancer early can change the outcome a lot. If you notice a sore, lump or patch that lasts more than two weeks, do not wait for your next visit. Call a dentist or doctor.

Many people skip the question because it feels scary. Here is the helpful way to see it: a screening is a routine safety check, like checking your blood pressure. Most of the time it finds nothing, and that is the best result.

Why screening matters: the numbers

The American Cancer Society estimates about 60,480 new cases of oral cavity and throat (oropharyngeal) cancer in the U.S. in 2026, and about 13,150 deaths. The average age at diagnosis is 64. Lifetime risk is about 1 in 59 for men and about 1 in 139 for women.

Stage at diagnosis makes a big difference. The ACS reports 5-year survival for people diagnosed between 2015 and 2021:

• Tongue cancer: 88% when found while still localized (in one spot), 70% once it has spread to nearby areas, and 39% once it has spread far.
• Floor of the mouth: 72% localized, 43% regional, 22% distant.
• Lip: 95% localized, 62% regional, 46% distant.
• Oropharynx (the middle of the throat): 86% localized, 79% regional, 40% distant.

What happens during the screening

You may not even notice it, because it is built into your exam. The National Institute of Dental and Craniofacial Research (NIDCR) says the dentist or hygienist checks your face, neck, lips, entire mouth and back of your throat for signs of cancer.

Here is what it usually looks like:

Tell your dentist about anything you noticed, even if it seems small: a spot that appeared a few weeks ago, a rough edge, a sore that came and went. You know your mouth best. Small details help your dentist decide what to look at more closely.

• Looking at your face and neck for swelling or lumps, or for uneven areas.
• Checking the lips, inside the lips and the inside of the cheeks.
• Gently pulling your tongue out to look at the top, sides and underside, and the floor of your mouth.
• Looking at the roof of the mouth and the back of the throat.
• Feeling the neck and jaw with gentle pressure for lumps or tender spots.
• Looking at your gums and the places where dentures sit, if you wear them.

Warning signs to watch for

NIDCR advises to see a dentist or doctor if you have any of these for more than two weeks:

Most of these signs have simple causes, like a canker sore, a cold or a bitten cheek. The two-week rule is only a guide that tells you when it is no longer wise to wait. When in doubt, a quick visit is cheap peace of mind.

• A sore, irritation, lump or thick patch in your mouth, lip or throat.
• A white or red patch in the mouth.
• A sore throat that will not go away, a feeling of something caught in your throat, or hoarseness.
• A lump in your neck.
• Trouble chewing, swallowing or speaking, or trouble moving your jaw or tongue.
• Pain or bleeding in the mouth, or numbness in your tongue or mouth.
• Ear pain.
• Swelling in the jaw that makes dentures feel uncomfortable.

Who is at higher risk?

Anyone can get oral cancer, but some things raise the risk. NIDCR lists:

Many people with oral cancer have none of these risk factors, which is why everyone should be screened. Risk factors raise the odds. They do not decide the outcome.

• Tobacco in any form: cigarettes, cigars, pipes, e-cigarettes, chewing tobacco and snuff.
• Heavy alcohol use. Using both tobacco and alcohol raises the risk further.
• HPV (human papillomavirus), especially type 16. NIDCR says most throat cancers are linked to HPV, and HPV-related oral cancers have been rising.
• Age over 40, since most oral cancers happen in older adults.
• Too much sun on the lips.
• A diet low in fruits and vegetables.
• Inherited gene changes in some families.

How often should you get screened?

Because the screening is part of a regular dental exam, most people get one at each checkup. Many dentists see patients twice a year. If you have a higher risk, such as tobacco use, heavy drinking or a past mouth problem, ask your dentist how often you should come in. Your dentist may suggest you come more often.

You can do a simple check at home between visits. Once a month, look in a mirror with good light. Check your lips, the inside of your cheeks, your tongue (top, sides and underneath), the roof and floor of your mouth and your gums. Feel your neck and under your jaw for lumps. You are looking for anything new or different, and the key is time: a change that lasts more than two weeks needs a professional look.

If you wear dentures, take them out at the visit so your dentist can see the tissue underneath, and mention any sore spots right away. Sore spots from dentures should heal within a couple of weeks after an adjustment. If they do not, tell your dentist.

What happens if the dentist finds something

Most spots turn out to be harmless. A sore from a sharp tooth or a poorly fitting denture, a canker sore or an irritation from a cheek bite often heals on its own or after the cause is fixed. Your dentist may ask you to come back in a week or two to see if it healed.

If something looks unusual or does not heal, NIDCR says your dentist may recommend more tests or send you to a specialist. A biopsy, where a small sample is taken and tested, is the only way to know for sure. Having a biopsy done does not mean you have cancer. It means your dentist wants a clear answer.

If you are told you have cancer, there is a lot of help. Your care team will explain your options step by step, and early-stage mouth cancers have much better odds, as the numbers above show.

It helps to bring a short list of questions to your visit. For example: Is this spot normal? How long should I wait before it heals? Do I need a biopsy? Who will do it, and how will I get the results? Writing it down means you will not forget when you are nervous.

Get your exam at KDA

Your regular exam at Kendall Dental Associates includes a careful look at the soft tissues of your mouth, not just your teeth. Our hygienists take a full hour for routine cleanings, so there is time to talk about anything you have noticed. We also have digital X-rays and 3D scans to see what is going on below the surface.

We have served South Florida since 1973 from the Kendall Mall at 8833 SW 107th Ave, Miami, FL 33176. Our hours are Monday to Friday, 8:00 AM to 5:00 PM, with emergency care 24/7. We accept most dental insurances and most Medicare supplemental plans, and financing is available. Call 305-271-1421 to book an exam. If you have a sore that has lasted more than two weeks, call today instead of waiting for your next checkup.

Common questions

This article is general information, not medical advice. Your dentist will confirm what is right for you at your exam. General information checked against: nidcr.nih.gov, cancer.org, cancer.org.