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Types of Teeth and Their Functions

1) Why Are the Canines of Carnivorous Wild Animals More Developed Than Herbivorous Animals?

  • Carnivorous animals feed on the flesh of other animals.
  • Tigers, leopards, and lions hunt herbivorous animals like deer, rabbits, monkeys, etc.
  • Depending on their food habit, the canines are more developed in carnivore animals to help tear flesh.

2) Write the Dental Formula of Humans and Explain It.

The dental formula of humans is—

  • There are 8 incisors; 4 in the upper jaw and 4 in the lower jaw.
  • There are 4 canines; 2 in the upper jaw and 2 in the lower jaw.
  • There are 8 premolars; 4 in the upper jaw and 4 in the lower jaw.
  • There are 12 molars; 6 in the upper jaw and 6 in the lower jaw.

3) What Is the Difference Between Milk Teeth and Permanent Teeth?

The differences between milk teeth and permanent teeth are—

Milk teeth Permanent teeth
i) Milk teeth have soft enamel. i) Permanent teeth have hard enamel.
ii) These teeth have shorter and thinner roots with a few nerve branches. ii) These teeth have longer and thicker roots with developed nerve branches.
iii) They are 20 in number. iii) They are 32 in number.

4) What is ‘Heterodont’?

The type of teeth arrangement where the teeth vary in shape and size is called heterodont.

5) What is Scurvy?

  • Scurvy is caused due to deficiency of vitamin C.
  • It affects gums and leads to swollen and bleeding gums.
  • Scurvy is also characterised by bruised skin.

6) Why Do Some People Wear Dental Braces?

  • Dental braces are used to correct misaligned or crooked teeth.
  • Braces can cure bite issues and can improve smiles.
  • These are made with high-quality metals.

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