Can Radiation And Chemotherapy Cause Many Problems In The Mouth?
If you’re undergoing or about to undergo radiation or chemotherapy, you might be wondering how these treatments can impact your oral health. Unfortunately, the answer is yes—radiation to the head and neck, along with certain chemotherapy medications, can lead to various oral problems. But knowing what to expect can help you manage and prevent some of these issues.
How Radiation and Chemotherapy Affect Your Teeth
One of the main side effects of radiation and chemotherapy is reduced saliva production. Saliva plays a crucial role in protecting your teeth by neutralizing acids in your mouth and helping to wash away food particles. When saliva production decreases, it increases the risk of severe dental decay. Without enough saliva, your teeth are more vulnerable to acid, making them more brittle and prone to fractures.
This increased risk of dental decay can be particularly concerning for patients undergoing cancer treatment, as it may require additional dental care during an already challenging time. If you’re about to begin treatment, it’s essential to discuss your dental health with your dentist so they can help protect your teeth during this period.
The Impact on Your Jawbone
Radiation and certain chemotherapy medications can also affect the jawbone. One potential issue is a condition known as necrosis, where the bone in the jaw starts to break down and die without a clear cause. This can be a serious complication that may require surgery to address. If left untreated, necrosis can lead to more severe dental problems and even affect your overall oral structure.
Because the jawbone supports your teeth, any damage to it can compromise your dental health in the long term. That’s why it’s critical to have regular check-ups with your dentist throughout your cancer treatment, so any signs of necrosis or other complications can be detected early and managed appropriately.

Gum Health During Treatment
Another area that can be affected by radiation and chemotherapy is your gums. These treatments can compromise blood flow to the gums, increasing the risk of significant gum disease. When your gums aren’t getting enough blood flow, they can become more prone to infection, inflammation, and recession, all of which can lead to further dental issues down the line.
Before you start treatment, your dentist may recommend a tailored oral care routine to help maintain your gum health and minimize the risk of gum disease. Working closely with both your medical team and dentist is crucial in keeping your mouth healthy during this time.
Preparing for Treatment: Dental Clearance
If you’re preparing for radiation or chemotherapy, it’s important to get dental clearance from your dentist beforehand. This means having a comprehensive dental check-up to identify any existing issues that could be aggravated by your treatment. Your dentist and doctors will work together to create a personalized treatment and prevention plan to ensure your oral health is maintained throughout your medical journey.
We’re Here to Help
If you’re concerned about the side effects of radiation or chemotherapy on your dental health, our team at Pitt St Dental Centre is here to support you. Simply fill out this booking form or give us a call at (02) 9223 4767 to organise a consultation, and we’ll help make your treatment as smooth and comfortable as possible.
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The content is not intended to be a substitute for professional personal diagnosis or treatment. Always seek the advice of your dentist or another qualified health provider with any questions you may have regarding a dental or medical condition. Never disregard professional advice or delay seeking it because of something you have read or seen on the Site.
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