Human Teeth

The video tutorial explores the differences between infant and adult foods due to the presence of teeth. It explains the types of teeth—incisors, canines, premolars, and molars—and their specific functions. The structure of teeth, including enamel, dentine, pulp, and cementum, is detailed. The video also covers tooth care, the impact of sugary foods, and the process of tooth decay.

Why do infants consume different types of food compared to adults?

• Infants lack teeth at birth.

• Infants have a smaller stomach.

• Infants have a faster metabolism.

• Infants prefer sweet foods.

What is the primary function of incisors?

• Cutting and biting food

• Tearing food

• Grinding food

• Crushing food

Which type of teeth are used for tearing food?

• Incisors

• Molars

• Canines

• Premolars

How many premolars does a human have in total?

• Sixteen

• Twelve

• Eight

• Four

What is the role of molars in the mouth?

• Tearing food

• Grinding food

• Cutting food

• Piercing food

What is the hardest substance in the human body?

• Cementum

• Enamel

• Dentine

• Bone

Which part of the tooth contains nerves and blood vessels?

• Pulp

• Dentine

• Cementum

• Enamel

Why are sugary snacks and drinks harmful to teeth?

• They stain the teeth.

• They cause bad breath.

• They form acid that can erode enamel.

• They make teeth brittle.

What is plaque?

• A hard layer on teeth

• A sticky layer formed by germs

• A protective coating

• A type of tooth decay

What can tooth decay lead to if not treated?

• Faster tooth growth

• Infection and tooth loss

• Tooth whitening

• Stronger teeth