If you are preparing for major surgery or cancer treatment, your doctor may recommend a dental check-up first, sometimes called dental clearance. This is because dental infections or problems can complicate medical treatment and recovery. Addressing them beforehand helps reduce risks and keeps you more comfortable during treatment.
Dental infections, such as abscesses or advanced gum disease, can be a source of bacteria that may cause complications, especially when the immune system is weakened or after certain surgeries. Painful dental problems can also be harder to treat once medical treatment has started. Identifying and treating problems early allows medical treatment to proceed more safely.
Before some heart valve surgeries and joint replacements, doctors may ask for dental assessment to reduce the risk of infection. The dentist checks for decay, gum disease and infected teeth, and treats them or recommends extraction where necessary. Your medical team will advise on timing.
Chemotherapy can lower the body's ability to fight infection and may cause mouth ulcers, dry mouth and bleeding gums. A check-up before treatment allows the dentist to treat infections, smooth sharp edges of teeth or fillings that might cause ulcers, and give advice on mouth care during treatment.
Radiotherapy to the head and neck can permanently reduce saliva and affect the jawbone's ability to heal. Teeth that may need extraction in the future are often removed before radiotherapy begins, allowing time for healing. The dentist will also provide high-fluoride products and a long-term prevention plan.
Some medications used for osteoporosis or cancer that affect bone can increase the risk of jaw healing problems after extractions. A dental check before starting these medications allows necessary treatment to be completed first.
The dentist will review your medical history, examine your teeth, gums and soft tissues, take X-rays and identify any treatment needed. They may communicate with your doctor about timing and findings.
Continue gentle oral hygiene, report mouth sores or pain, and keep regular dental appointments as advised by your medical and dental teams.
During chemotherapy or radiotherapy, the mouth can become sore, dry and more prone to infection. Brush gently with a soft or extra-soft toothbrush and a mild fluoride toothpaste, rinse regularly with a bland rinse such as salt water or a product recommended by your care team, and avoid alcohol-based mouthwashes, which can sting. Keep your lips moisturised and sip water often. Report mouth ulcers, white patches, bleeding or difficulty eating to your medical or dental team, as early support can make treatment more comfortable.
People who have had radiotherapy to the head and neck often need lifelong preventive dental care. Reduced saliva increases the risk of rapid decay, so high-fluoride toothpaste, fluoride trays or varnish and frequent check-ups are usually recommended. Extractions after radiotherapy need careful planning because of the effect on bone healing. Staying in close contact with your dentist and following a tailored prevention plan helps protect your teeth for the long term.
To treat infections and reduce the risk of complications during treatment.
As early as possible, ideally a few weeks before, to allow time for treatment.
If needed, yes, to coordinate safe treatment timing.
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