Презентация по теме Зубы, 10 класс

Questions:
1. What kind of the material are made our teeth of?
2. Why should we use teeth paste with fluorides?
3. What is tooth decay caused by?
4. What do we need to develop good enamel?
5. How many parts has a tooth?
6. A layer, what does it mean?
7. The hardest substance in the body is…?
8. How much important for us the pulp?
9. What are the incisors and what do we use incisors for?
10. What are the molars?
11. When do we use the morals?
12. What are the canines?

Answers
1 . An enamel
2. To keep our teeth in good condition
3. By the acid that the bacteria in the mouth make from the sugar we eat.
4. We need calcium – so drink milk.
5. Two main parts.
6. which is softer than enamel but similar to bone.
7. An enamel
8. It protected by a layer

9. The sharpest teeth. To bite food
10. They are bigger and flatter than the other teeth.
11. To chew and grind food into small pieces
12. They are in the corners of our mouth and we use them to grasp and to tear food.

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