How to Choose a Toothpaste (It's Mostly One Ingredient)

In short: Fluoride is the ingredient that matters — check the ppm on the back: around 1350–1500 for adults, less for young children. Sensitivity pastes genuinely help with consistent use; whitening pastes only remove surface stain; charcoal pastes are often abrasive and fluoride-free. Technique and time matter more than brand.

Toothpaste marketing implies enormous differences between products. In practice one ingredient does most of the work, and it is on the back of the tube in small print.

Fluoride is the point

Fluoride is the ingredient with the strongest evidence base for preventing decay. It strengthens enamel and helps reverse very early decay before a cavity forms. Check the back for ppm:

• Adults and children 6+: around 1350–1500 ppm — standard adult toothpaste
• Children 3–6: a lower-fluoride children's paste, a pea-sized amount, supervised
• Under 3: a smear, and follow your dentist's advice
• High decay risk: your dentist may prescribe higher-strength paste

If the tube does not state a fluoride content, that is worth noticing.

The specialist ones

Sensitivity toothpaste. Genuinely works for many people, containing ingredients that block the tubules in exposed dentine. It needs consistent use over several weeks, not one application. If sensitivity is severe or sudden, get it examined — see tooth sensitivity.

Whitening toothpaste. Removes surface stain through mild abrasives. It does not change the natural colour of your teeth — that requires whitening treatment. Reasonable for stain, not a substitute.

Charcoal toothpaste. Popular and worth caution. Many are abrasive, and abrasion removes enamel permanently, which makes teeth look yellower over time because the darker dentine underneath shows through. Many also contain no fluoride. Not something most dentists recommend for daily use.

Herbal and fluoride-free. Some people prefer these. Be clear about the trade-off: without fluoride you lose the main evidence-based protection against decay.

What matters more than the brand

Technique, time and frequency — see how to brush and floss properly. An adequate toothpaste used well beats a premium one used for 40 seconds.

And spit, do not rinse. Rinsing washes the fluoride away immediately.

Ask your dentist

If you get frequent decay, have sensitivity, wear braces, or have dry mouth, ask for a specific recommendation. Every dentist on EnamDoc is verified against their dental council registration before they can accept a booking.