Dental Care Before and During Cancer Treatment
If you are about to start chemotherapy or radiation to the head and neck, see a dentist before treatment begins if you can. Treating infection and unstable teeth beforehand lowers the chance of a dental problem interrupting cancer care, and it gives you a plan for the mouth changes treatment can cause. Bring your oncology team's contact details so the dentist can coordinate timing and precautions with them.
Why see a dentist before cancer treatment?
Chemotherapy can lower your ability to fight infection, and radiation to the head and neck can permanently change saliva and the jawbone. A dental evaluation before treatment is the chance to:
Find and treat infection in teeth or gums before your immune system is suppressed.
Deal with teeth that can't be kept healthy. If a tooth needs to come out, it is much safer to remove it before radiation, with time to heal, than afterward.
Record a starting point so changes during treatment are easier to spot.
Start prevention early, such as prescription fluoride if your saliva is likely to be affected.
I coordinate this timing with your oncologist or radiation oncologist so dental care fits your treatment schedule. I also serve on the Head and Neck Tumor Board at Baptist MD Anderson, where specialists review cases together. After treatment, an oral cancer screening at every checkup helps catch a new or recurring change early.
What mouth problems can cancer treatment cause?
Chemotherapy and radiation affect fast-growing cells, including the lining of the mouth. Common problems include:
Mouth sores (oral mucositis). Painful inflammation that can make eating and speaking hard. Read about evaluation of mouth sores.
Dry mouth. Radiation can damage the salivary glands, sometimes permanently. Saliva may become thick and scant, and cavities can develop quickly.
Infections. Yeast (thrush) and other infections are more likely when immunity is low.
Jaw stiffness. Radiation can tighten the chewing muscles and limit how wide you can open. This is radiation-induced trismus.
Taste changes, which often improve after treatment but don't always return fully.
What changes after head and neck radiation?
Radiation reduces blood flow to the jawbone. If a tooth is removed from bone that received a high dose, the bone may not heal. This is called osteoradionecrosis. For that reason, after radiation the goal is to keep teeth healthy enough that they never need extraction, and any surgery is planned carefully with your radiation history in mind.
Lower saliva also changes how fillings and crowns should be planned. I favor daily high-strength fluoride, closer follow-up and restorative materials chosen for a mouth with less natural protection.
What should you bring to a cancer-related dental visit?
Your current medication list
Your treatment plan and schedule, if you have it
Contact details for your oncology team
Any history of earlier head and neck radiation or surgery
Notes on changes in saliva, taste, mouth opening or soreness
Physicians can use our physician referral information to send records and coordinate timing.
How much time does the first visit take?
New-patient visits at our office are scheduled for two hours, normally an hour with me and an hour in hygiene. For a patient about to start cancer treatment, that time goes to the medical history, examination, any needed imaging and a plan that fits the treatment schedule. Our page on dental clearance before surgery, a transplant or cancer treatment explains what we send your team.
Where can you get dental care during cancer treatment in Jacksonville?
Our office is at 3675 Hendricks Avenue, near San Marco. Read about our dental care around head and neck cancer, see what a recent study found about lower radiation doses and dry mouth, or contact the office at 904-398-1549 to arrange an evaluation.
Sources
National Institute of Dental and Craniofacial Research. Cancer treatments and oral health.
National Cancer Institute. Oral complications of cancer therapies (PDQ), patient version.
About the author. CJ Henley, DMD, is a general dentist in Jacksonville. His practice focuses on cosmetic and restorative dentistry, dental implants and dental care around head and neck cancer treatment. His role is dental care and coordination with your medical team. He does not provide cancer treatment. Meet Dr. Henley.
CJ Henley, DMD, PA · 3675 Hendricks Avenue, Jacksonville, FL 32207 · 904-398-1549
Updated October 2026.