Visual field guide 11Oral health
Fluoride, hydroxyapatite, sensitivity, whitening and SLS-free formulas do different jobs. Start with the active ingredient—not the flavour or the front-of-tube promise.
Decode the formula ↓An evidence-aware, 5-minute visual guide
THE USEFUL QUESTIONWhat is this toothpaste designed to do—and which ingredient is doing it?
A toothpaste is a delivery system: cleaning particles, flavour, moisture-retaining ingredients and one or more actives. The active is the fastest way to understand the product.
Fluoride helps slow mineral loss, supports remineralisation of early enamel damage, and makes the repaired surface more resistant to acid.
Sodium fluoride, sodium monofluorophosphate, or stannous fluoride
Hydroxyapatite is a calcium-phosphate mineral related to the mineral in enamel. Studies suggest it may help with early surface repair and sensitivity.
Hydroxyapatite or nano-hydroxyapatite (n-HA)
Sensitivity formulas work in different ways: some calm nerve signalling, while others block the microscopic dentine channels that carry a stimulus inward.
Potassium nitrate, stannous fluoride, arginine, or hydroxyapatite
Most whitening toothpastes polish or disperse stains on the outside of a tooth. They do not change the natural colour deep inside it.
Hydrated silica, bicarbonate, stain dispersants, or low-dose peroxide
Sodium lauryl sulphate is a detergent that creates foam. Skipping it does not stop brushing from working and may suit people who find foamy pastes irritating.
‘SLS-free’ on the pack; often a milder alternative surfactant
Both are discussed as remineralising ingredients, but they are not interchangeable in how established, standardised or recommended they are.
Fluoride has decades of clinical and public-health evidence for preventing tooth decay. In Australia, standard-strength fluoride toothpaste is the routine recommendation from age six onward, with age- and risk-specific advice for younger children.
DEFAULT FOR MOST PEOPLEClinical reviews report encouraging results for sensitivity and caries prevention. But products vary in particle type and concentration, trials are fewer, and the evidence base is not as mature as fluoride’s.
PROMISING ≠ EQUALLY ESTABLISHEDSome products combine fluoride with hydroxyapatite. Read the ingredient panel instead of assuming a mineral-focused toothpaste is fluoride-free.
For adults and people aged 13+, Australian guidance lists standard toothpaste at 1,000–1,500 ppm fluoride. Higher-strength products are for professional advice.
Use it consistently. New, severe, lingering or one-sided pain needs a dental assessment rather than a stronger shopping claim.
Check whether the product states its active and concentration. If you have frequent decay, dry mouth or high caries risk, discuss the trade-off with a dentist.
Low foam is not low cleaning. Keep the cavity-prevention active in view while changing the detergent system.
Does it match your main need?
For fluoride, find the ppm value.
Will you comfortably use it twice daily?
That leaves more fluoride in contact with teeth. Children need age-appropriate toothpaste and supervision so they use the right amount and do not swallow it.
Sensitivity can also come from decay, a crack, gum recession or another problem that toothpaste cannot diagnose.
These can signal a spreading dental infection. Seek urgent medical or dental care.
A dentist may recommend a different fluoride strength or prevention plan.