Dental hygiene: gentle but regular
During treatment the mouth is often a way in for infection. With low platelets gums may bleed, and with neutropenia small sores can become infected. This section explains how to care for your teeth safely.

01Short answer
02Simple explanation
Extra-soft brush.
Twice a day.
Alcohol-free rinse.
Dentist: with your team.
03Scientific explanation
NCI: a dental check and clearing sources of infection before cancer treatment reduce mouth complications.
WHO: foodborne illness is more severe in people with weakened immunity; the five keys are keep clean, separate, cook thoroughly, keep food at safe temperatures, and use safe water and raw materials.
04What happens in the body?
Dentures
Clean them daily, take them out at night and wear them less if you have sores.

Blood counts
With very low platelets your team may suggest a soft sponge instead of a brush.

Neutropenia
When neutrophils are low, even ordinary germs can cause serious infection, which is why the rules are stricter.
General rules
This section is part of the general food-safety rules in “Handwashing: the simplest protection” and “Eggs and dairy: safe choices” and “Food safety: four simple rules”.
05Safety: four steps
Check, swap the risky, prepare properly, use in time.







06Key points at a glance
| Topic | In brief |
|---|---|
Dentures | Clean them daily, take them out at night and wear them less if you have sores. |
Blood counts | With very low platelets your team may suggest a soft sponge instead of a brush. |
Neutropenia | When neutrophils are low, even ordinary germs can cause serious infection, which is why the rules are stricter. |
General rules | This section is part of the general food-safety rules in “Handwashing: the simplest protection” and “Eggs and dairy: safe choices” and “Food safety: four simple rules”. |
07Key terms
- Gingivitis
- Red, bleeding gums.
- Fluoride
- A substance that protects tooth enamel.
- Foodborne infection
- An infection spread through food or water.
- Neutropenia
- Low neutrophils.
08Key points
- Gentle and regular.
- Change your brush.
- Report bleeding.
- When in doubt, throw it out.
- Call if you have a fever.
09Frequently asked questions
Is an electric toothbrush OK?
With a soft head and care, often yes; ask.
Can I have a tooth out?
Only at a time agreed with your team.
Are these rules for ever?
No. They are usually relaxed as blood counts recover; your team will say.
10Questions for your doctor
Take these questions to your appointment. The ones you save are collected on the “My questions” page and stay on this device only.
Is an electric toothbrush OK?
Can I have a tooth out?
Are these rules for ever?
12Sources
- National Cancer Institute. Oral Complications of Chemotherapy and Head/Neck Radiation (PDQ)
- World Health Organization. Five Keys to Safer Food manual
- World Health Organization. Food safety fact sheet
- U.S. Food and Drug Administration. Safe Food Handling
- National Cancer Institute. Eating Hints: Before, During, and After Cancer Treatment
- American Cancer Society. Diarrhea
- NHS (UK). Dehydration
- European Food Safety Authority (EFSA), 2010. Scientific Opinion on Dietary reference values for water
- National Center for Complementary and Integrative Health (NCCIH). Cancer and Complementary Health Approaches: What You Need To Know
- National Center for Complementary and Integrative Health (NCCIH). St. John’s Wort
Dentures
Blood counts
Neutropenia
General rules