Oral recommendations for cancer patients

Before treatment

Patients diagnosed with cancer should undergo an oral check-up prior to the start of cancer treatment.


The general lines of action are as follows:

  • The necessary root canals (killing the nerve) will be carried out at the latest one week before the start of chemotherapy.
  • Non-restorable teeth, wisdom teeth at risk of infection and mobile teeth should be extracted two weeks prior to the start of treatment.
  • Cleaning and removal of any tissue irritants should also be carried out.

If the patient has a removable prosthesis ("put in and take out"):

  • If it has an inadequate fit, it must be removed.
  • If the setting is correct, it can be maintained.

During treatment.


  • It should preferably be done with an Oral-B PRO 2000 (CN170109.1) oscillating-rotating-pulsating electric toothbrush for thorough plaque control.
  • It should be done 2-3 times a day, for a minimum of 120 seconds each time.
  • After brushing, the mouth should be rinsed with water.
  • The brush should be air-dried and changed every 2-3 months.
  • Toothpaste should contain fluoride, ideally combined with tin, Oral-B Pro-Expert (CN 165793.0).

Tongue hygiene:

  • The tongue should be cleaned with a Halita tongue scraper (CN 313585.6).

Interdental hygiene:

  • Flossing/threading once a day.
  • In case of gingival recession, a suitable interdental brush should be used.
  • The floss and interdental brush can be replaced by an irrigator with an alcohol-free chlorhexidine 0.12% liquid reservoir such as Perio Aid (CN 342261.1).


  • Rinses containing alcohol should not be used.
  • To alleviate the oral dryness characteristic of the treatment, it can be rinsed with a saline solution containing sodium bicarbonate:
    • 1 litre of water + 1 tablespoon of salt + 1/2 tablespoon of bicarbonate in a glass bottle that is shaken well before each use.
    • Several rinses should be performed daily for 2 minutes.
    • Sodium bicarbonate neutralises the acidity generated by the reduced secretion of saliva, thus counteracting the development of caries.

Oral treatments:

  • You should see your dentist every three months.
  • Treatments that affect the oral mucosa, such as extractions, dental implants or periodontal treatments, should not be carried out.
  • In case of dental emergencies during chemotherapy treatment, your dentist will contact your oncologist to arrange the necessary treatment.
  • If the patient has a removable prosthesis ("put-on and take-off"), the care of these prostheses must be reinforced during cancer treatment:
    • If the prosthesis is made of resin, it should be immersed every night in a solution of Corega Bio-active Oxygen.
    • If the prosthesis is metal, it should be soaked every night in a solution of water and betadine (10 parts water to 1 part betadine).