Learning Portal · Ages 8–11

Grades 3–5 lessons

The science of smiles — plaque, cavities, and owning your own routine.

Inside a Tooth

Cut a tooth open (on paper!) and meet the three layers — enamel armor, dentin, and the living pulp — then find out why enamel is worth protecting for life.

Teeth basics · about 30 min

Open lesson

The Plaque Attack Plan

You're old enough to own your routine — the 45-degree angle, every surface, two minutes twice a day, floss once, and a brush you replace before it wears out.

Brushing & flossing · about 30 min

Open lesson

Snack Science

Run the numbers on snacking — it's not just how much sugar, it's how often. Meet the acid attack and learn why sipping all afternoon beats teeth up worse than dessert.

Healthy eating · about 30 min

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How Cavities Happen

Follow the decay chain from plaque to acid to a hole in the enamel — and find out why an early weak spot can still be rescued but a real cavity cannot.

Cavities · about 30 min

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Checkup Science

Every tool at the dentist has a reason. Find out what the scaler, the polisher, and the x-ray actually do — and why the hygienist and dentist have different jobs.

Visiting the dentist · about 29 min

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Enamel Defense: Fluoride & Sealants

Two defenses, two different jobs — fluoride rebuilds enamel from the mineral level up, while sealants physically block the grooves where brushes can't reach.

Fluoride & sealants · about 30 min

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The Mouth–Body Connection

Gums enter the story — what gingivitis is, why bleeding gums are a signal rather than something normal, and how scientists think mouth health and body health are linked.

Mouth & body · about 30 min

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