Cancer treatments save lives, but they can also have significant effects on oral health. Radiation therapy to the head and neck area, as well as chemotherapy, often impacts the teeth, gums, jaw and soft tissues of the mouth. At Dural Dental Practice, we regularly support patients before, during and after cancer treatment to help protect their oral health and quality of life.
Understanding what can happen and how dental care can help is an important part of your overall treatment journey.
How Cancer Treatments Affect the Mouth
1. Radiation Damage to Teeth and Salivary Glands
Radiation therapy to the head and neck can permanently damage salivary glands, leading to chronic dry mouth (xerostomia). Saliva is essential for neutralising acids and protecting teeth, so reduced saliva greatly increases the risk of:
- Rapid tooth decay
- Tooth sensitivity
- Enamel breakdown
- Cracked or weakened teeth
Radiation-affected teeth can decay rapidly, sometimes without pain, until significant damage occurs.
2. Oral Mucositis (Painful Mouth Sores)
Chemotherapy and radiation may cause oral mucositis, which appears as inflamed, ulcerated tissue inside the mouth. This can lead to:
- Pain when eating or speaking
- Increased infection risk
- Difficulty maintaining oral hygiene
3. Gum Disease & Infections
Cancer treatments can weaken the immune system, making the gums more vulnerable to:
- Gingivitis and periodontitis
- Fungal infections (such as oral thrush)
- Delayed healing after dental procedures
4. Jaw Bone Changes (Osteoradionecrosis)
Radiation can reduce blood supply to the jawbone, increasing the risk of osteoradionecrosis — a serious condition where bone fails to heal after trauma or tooth extraction. This is why careful dental planning is essential before and after radiation therapy.
5. Changes in Taste & Oral Sensation
Many patients experience altered taste, burning sensations, or numbness in the mouth, which can affect appetite and nutrition.
Why Dental Care Before Cancer Treatment Is Critical
A comprehensive dental assessment before starting radiation or chemotherapy can significantly reduce complications. At Dural Dental Practice, this may include:
- Identifying and treating existing decay or infection
- Removing teeth that may pose a future risk
- Providing fluoride treatments or custom fluoride trays
- Educating patients on protective oral care routines
Early intervention can prevent emergency dental problems during cancer treatment, when healing is more difficult.
How Dural Dental Practice Can Help
We take a gentle, preventative and coordinated approach to care for patients undergoing cancer treatment.
Our support includes:
- Pre-treatment dental clearance and planning
- Ongoing monitoring during treatment
- High-strength fluoride therapy to protect enamel
- Dry mouth management strategies
- Gum care and infection control
- Long-term maintenance after cancer treatment
We also work alongside your oncologist and medical team to ensure dental care is safe, appropriate and timed correctly.
What You Can Do at Home
Patients undergoing cancer treatment can protect their oral health by:
- Brushing gently twice daily with a soft toothbrush
- Using fluoride toothpaste or prescribed gels
- Avoiding sugary, acidic or very dry foods
- Staying well hydrated
- Using saliva substitutes if recommended
- Attending regular dental check-ups
Even small daily habits make a meaningful difference.
Life After Cancer: Ongoing Oral Care Matters
Dental issues related to radiation can appear months or even years later. Long-term dental monitoring is essential to:
- Prevent radiation-related tooth decay
- Detect changes in jaw health early
- Maintain comfort, function and confidence
At Dural Dental Practice, we are committed to supporting patients well beyond their active cancer treatment.
We’re Here to Support You
If you or a loved one is undergoing cancer treatment — or planning to — early dental care can make a significant difference. Our experienced team provides compassionate, personalised care tailored to your medical needs.
Contact Dural Dental Practice today to book a consultation or discuss how we can support your oral health during and after cancer treatment.
