A model of the teeth is a hands-on way to learn how your mouth is built and why brushing matters. Using simple craft materials like marshmallows, clay, cardboard, or paper cups, students can make upper and lower teeth that are easy to see and label. The project helps connect art, health science, and careful observation.
It also gives students a safe way to practice explaining good dental habits.
Key Facts
- Most children have 20 baby teeth, while most adults have 32 permanent teeth.
- Incisors cut food, canines tear food, and molars grind food.
- Plaque is a sticky layer of bacteria that can form on teeth after eating.
- Brushing for 2 minutes, 2 times per day helps remove plaque from tooth surfaces.
- Fluoride helps strengthen tooth enamel and protect teeth from decay.
- A good tooth model should show tooth shape, gums, spacing, and the brushing direction.
Vocabulary
- Enamel
- Enamel is the hard outer layer of a tooth that helps protect it from damage and decay.
- Plaque
- Plaque is a sticky film of bacteria and food particles that forms on teeth.
- Gums
- Gums are the soft tissue around the base of the teeth that help hold them in place.
- Molar
- A molar is a wide back tooth used for crushing and grinding food.
- Fluoride
- Fluoride is a mineral that helps make tooth enamel stronger.
Common Mistakes to Avoid
- Making every tooth the same shape is wrong because real mouths have different tooth types for different jobs, such as cutting, tearing, and grinding.
- Placing teeth in one straight row is wrong because upper and lower teeth sit in curved arches inside the mouth.
- Forgetting to show the gums is wrong because gums are an important part of the mouth and help students understand where teeth are anchored.
- Brushing only side to side in the demonstration is incomplete because good brushing should also clean the gumline and the chewing surfaces of back teeth.
Practice Questions
- 1 A student uses 10 marshmallows for the upper teeth and 10 marshmallows for the lower teeth. How many marshmallow teeth are in the model?
- 2 If the project team spends 12 minutes shaping teeth, 18 minutes gluing parts, and 10 minutes labeling the model, how many total minutes does the project take?
- 3 Explain why a model that includes different tooth shapes is better for teaching dental care than a model with identical teeth.