What for?
To help prevent decay as part of suitable oral care.
← All explanationsSodium fluoride
What does sodium fluoride do in toothpaste?
Sodium fluoride is a fluoride compound used in products including toothpaste. Available fluoride supports mineral replacement in enamel and helps prevent tooth decay. The ingredient name alone is not decisive: fluoride concentration, regular use and an appropriate amount also matter.
For training & practice ↓
AI-generated
Choose a view
An ingredient and a concentration
A label may list sodium fluoride or NaF. The ppm figure describes the fluoride concentration. The ingredient name alone does not tell you how much fluoride a product contains.
Available at the tooth surface
Fluoride works mainly through its interaction with the tooth surface, saliva and plaque. It supports enamel mineral balance; it does not simply fill a larger established cavity.
Use appropriately and regularly
Fluoride toothpaste is part of regular oral care. Amount and concentration need to suit age. Other fluoride sources should be considered for children; do not add tablets or high-strength products on your own.
Read the full explanation
An ingredient and a concentration
A label may list sodium fluoride or NaF. The ppm figure describes the fluoride concentration. The ingredient name alone does not tell you how much fluoride a product contains.
Available at the tooth surface
Fluoride works mainly through its interaction with the tooth surface, saliva and plaque. It supports enamel mineral balance; it does not simply fill a larger established cavity.
Use appropriately and regularly
Fluoride toothpaste is part of regular oral care. Amount and concentration need to suit age. Other fluoride sources should be considered for children; do not add tablets or high-strength products on your own.
Notes on the teaching images
- Fictional teaching illustration, not a patient case or treatment result.
At a glance
The same at every age?
No. Amount and concentration need to be appropriate.
A substitute for brushing?
No. Fluoride and mechanical cleaning complement each other.
Knowledge in motion
Explained in 36 seconds.
Three steps. No audio.
Each scene can also be selected manually.
Silent educational film with German on-screen text and simplified teaching images. Not a patient case or a promised treatment outcome. The full English explanation is available as text.
Often confused
Ingredient name and strength
Sodium fluoride names a compound; ppm describes a concentration. Two products with the same ingredient can therefore supply different amounts of fluoride.
Quick answers
Is sodium fluoride better than other fluorides?
The name of a fluoride compound does not establish universal superiority for preventing decay. Concentration and regular, appropriate use are important.
Is fluoride the same as fluorine?
No. Fluorine is the chemical element; sodium fluoride contains fluoride as part of a chemical compound. The terms should not be treated as interchangeable.
Can fluoride products be freely combined?
No. Especially for children, toothpaste, possible supplements and other fluoride sources need to be considered together. Discuss suitable use with a dental or paediatric practice.
Why should toothpaste be spat out?
Toothpaste is intended for brushing, not eating. Adults spit it out after brushing. Immediately rinsing thoroughly with water removes some of the remaining fluoride; age-appropriate advice applies to children.
At the practice
For the appointment
You can bring this question to your appointment:
Which fluoride toothpaste and amount suit my age and risk of decay?
At a preventive appointment, we can discuss your oral care and the fluoride products you use.
Arrange an assessmentAppointment selection at DoctolibLearning layer for training & practiceUnderstand terminology and deepen knowledge
- NaF
- The chemical formula for sodium fluoride.
- ppm
- Parts per million; here a measure of fluoride concentration in a product.
Make the distinction
Sodium fluoride names a compound; ppm describes a concentration. Two products with the same ingredient can therefore supply different amounts of fluoride.
Sources and context
Editorial research: . General information, not an individual diagnosis or treatment recommendation. Teaching illustrations are simplified and do not depict a patient case.