To provide optimal fluoride effectiveness against caries while minimising risk of negative effects from excessive ingestion from toothbrushing, the fluoride dose delivered at each occasion is critical. This is particularly important for young children, so using a 'pea-sized amount' is generally recommended.

Is pea sized toothpaste enough?

Adults – a pea sized amount

For adults or anyone that's old enough to brush their teeth independently (including children that can rinse well and floss on their own,) only a pea sized amount of toothpaste is necessary. Anything more than this is unnecessary.

What is pea sized toothpaste?

Yet most dentists recommend a pea-sized amount every time you brush, whether you use a toothpaste with fluoride or without. In case you're not friendly with the round green vegetable, a pea is about the same size as a kernel of corn or a chocolate chip.