Brushing advice is often given as one instruction for all children. In practice it changes several times between the first tooth and the teenage years — in technique, in toothpaste amount, and above all in how much the adult does.
Before the first tooth
Wipe the gums with a clean, damp cloth once a day. This removes milk residue and gets the child used to having their mouth cleaned, which makes the switch to a brush much easier.
First tooth to age three
Start brushing as soon as the first tooth appears, twice a day, with a small soft brush and a smear of fluoride toothpaste roughly the size of a grain of rice. The adult does the brushing. Sitting the child on your lap with their head tilted back gives you a clear view.
Ages three to six
Move to a pea-sized amount of fluoride toothpaste. Encourage the child to spit out afterwards and not rinse with water — rinsing washes away the fluoride that is still working. Let them have a turn first, then finish the job yourself.
Ages six to twelve
Adult molars arrive at the back, where brushes reach least well, so keep supervising. This is also the age to begin cleaning between teeth wherever teeth touch. Most children do not have the manual control to brush thoroughly on their own before about age seven or eight.
Teenagers
Technique is rarely the problem in teenage years; consistency and diet are. Braces, energy drinks, sports drinks and snacking patterns all raise risk. Interdental cleaning and a fluoride toothpaste twice a day matter more than ever, and a night-time brush should never be the one that gets skipped.
Getting the two minutes right
Small mechanics make a large difference at every age.
- Two full minutes, twice a day — use a timer, song or app if it helps
- Small circles at a gentle angle where the tooth meets the gum
- Cover all surfaces: outer, inner and chewing
- Spit, do not rinse
- Replace the brush every three months, or sooner if the bristles splay
The short version
The single most common gap is not technique but supervision — most children need an adult finishing their brushing for years longer than parents expect.
This article gives general dental health information and is not a diagnosis or a treatment plan for your child. For advice specific to your family, please speak to our team at the clinic.