Types of Teeth

Q.

13. Explain the term thecodont and diphyodont.

Q.

Name different types of teeth and their number in an adult human.

Q.

What is meant by dentition? Explain the following terms with respect to dentition.​

(a) Thecodont​

Q.

Teeth formed only once during lifetime in humans

1. Incisors

2. Canines

3. Premolars

4. Molars

Q. Choose the incorrect statement with regard to teeth in humans:

1. Homodont - All teeth are of the same type
2. Diphyodont - Two sets of teeth during the life time
3. Heterodont - Morphologically different teeth
4. Thecodont - Teeth embedded in the socket of jaw bone

Q.

Mammals have teeth of this type:

1. homodont

2. heterodont

3. acrodont

4. polyphyodont

Q. Which of the following types of teeth in humans is considered as monophyodont?

1. Premolar
2. Canine
3. Incisor
4. All of the above

Q.

The dental formula of heterodont teeth in human is

1. $\frac{2102}{2102}\times 2$

2. $\frac{0021}{0021}\times 2$

3. $\frac{2123}{2123}\times 2$

4. $\frac{212}{212}\times 2$

Q. Peristome teeth in Funaria occur in how many whorls?

1. Two
2. One
3. Three
4. Four

Q. Thecodont, diphyodont and heterodont teeth are characteristic of

1. Reptiles
2. Aves
3. Mammals/man
4. Amphibians

Q.

The last molar on each side in each jaw is called___.

Q. Choose the correct combination with respect to teeth in humans:-

1. Heterodont, thecodont, diphyodont
2. Homodont, acrodont, diphyodont
3. Homodont, thecodont, polyphyodont
4. Heterodont, pleurodont, polyphyodont

Q.

Give one difference between the following:

1. Crown and root

2. Incisor and canine.

Q.

___________ and ___________ are also called grinding teeth.

Q. Which of the following types of teeth specialized in ripping, shredding and tearing flesh?

1. Incisors
2. Canines
3. Premolars
4. Molars

Q. A 12 years old boy comes to dental OPD with complains of toothache. Dental student notes that this patient has 4 teeth less than an adult human. What should be the dental formula of boy?

1. 2123/2123
2. 2122/2122
3. 2102/2102
4. 2120/2120

Q. Name: (ii) The living part of the tooth

Q. Which of the following types of teeth in humans is considered as monophyodont?

1. Incisor
2. Canine
3. Premolar
4. All of the above

Q.

The picture below shows the teeth of a human adult. Study the diagram and answer the questions.

(a) The breaking up of food into small pieces by the teeth helps in ________(mechanical or chemical) digestion.
(b) Name the kinds of teeth :
(c) How many teeth does an adult human have?
(d) How many premolar teeth are in each jaw?
(e) How many molar teeth are in each jaw?
(f) Which teeth are best for biting? (Incisors or Molars)
(g) Which teeth are best for grinding food?

Q.

Teeth formed only once during lifetime in humans

1. Incisors

2. Canines

3. Premolars

4. Molars

Q. Humans have form of dentition. They also have two sets of teeth in different stages of life and are called .

1. diphyodont
2. dentine
3. heterodont
4. thecodont
5. wisdom teeth

Q. Humans have form of dentition. They also have two sets of teeth in different stages of life and are called .

1. diphyodont
2. dentine
3. heterodont
4. thecodont
5. wisdom teeth

Q.

Name the following

a) Anteriormost part of the nasal chamber bearing hair.

Q. Define Canals filled with a permanent material (gutta - percha)?

Q. A baby boy aged four years is admitted to play school and passes through a dental check­up. The dentist observed that the boy had twenty teeth. Which type of teeth are most likely to be absent?

1. Canines
2. Pre­molars
3. Molars
4. Incisors

Q. Which type of teeth is used for cutting or shearing food?

1. 
2. 
3. 
4. 

Q. In humans, which teeth are specialised for cutting

1. Incisor
2. Premolars
3. Molars
4. None of the above

Q. Which type of teeth is used for cutting or shearing food?

1. 
2. 
3. 
4. 

Q. A baby boy aged two years is admitted to play school and passes through a dental check-up. The dentist observed that the boy had twenty teeth. Which teeth were absent ?

1. Incisors
2. Canines
3. Pre-molars
4. Molars

Q. Match the teeth with their roles.

1. Grinding food
2. Cutting food
3. Tearing food
4. Crushing food