One of the side effects of chemotherapy and radiation treatment is xerostomia (dry mouth). It’s an unpleasant sensation caused by a reduced production of saliva in the mouth. This condition can increase the risk of developing tooth decay and can also cause a burning or painful feeling on the tongue and all around the mouth.
If you have cancer, you should clean your teeth and mouth at least four times a day, and floss at least once a day. If there are areas in your gums that are bleeding or that are sore, floss gently around them.
You also need to use a toothpaste that contains fluoride, in order to give a higher protection to your teeth against cavities. You can rinse your mouth with a solution of baking soda and salt in warm water several times a day, and this followed by rinsing with water alone. Other commercial mouthwashes may also be used to rinse your mouth, but as long as they don’t contain alcohol.
Full article: Cancer Treatments and Oral Health
In French: Que faire si on est atteint du cancer et on souffre de bouche sèche?