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Kids & FamilyMarch 15, 2026·7 min read

Caring for Your Kids' Teeth: A Guide by Age

Baby teeth matter more than most parents realize — they shape the adult smile beneath them. Here's exactly what to do at every stage.

SM

Dr. Sarah Mitchell

Clinical Lead, After Hour Dentistry

Before the first tooth (0–6 months)

Wipe your baby's gums with a clean, damp cloth after feedings. This removes milk residue that feeds bacteria and gets babies used to having something in their mouth before teething starts. Never put a baby to bed with a bottle of milk, juice, or formula — the sugars pool against emerging teeth all night.

First tooth to age 3

As soon as the first tooth appears, brush twice a day with a tiny smear of fluoride toothpaste — about the size of a grain of rice. Book the first dental visit by age 1, even if there's just one tooth. Early visits are about comfort and prevention, not drilling; we show kids the equipment, count their teeth, and make it a positive memory.

Ages 3–6

Move up to a pea-sized amount of toothpaste. Kids at this age want independence, but they don't have the fine motor skills to brush effectively until around age 7–8. Let them brush first, then do a parental follow-up — especially the back molars. Floss any teeth that are touching.

Ages 6–12: sealants and permanent teeth

Permanent molars erupt around age 6 and again around age 12. These back teeth have deep grooves that trap food and bacteria — and they're where 90% of childhood cavities form. Dental sealants are a 5-minute, painless coating that prevents cavities for years. If your child has new adult molars, ask about sealants at their next visit.

Teens: the orthodontic window

Between 10 and 14 is the ideal age to evaluate bite and alignment. Jaw growth makes orthodontic work faster, and early treatment can prevent more invasive work later. A consultation doesn't mean braces — it means knowing whether treatment would help, and when to start.

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