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Types of Teeth

Which one of ...

Question

Which one of the following pairs of types of teeth perform one common function as stated against it ?

(a) Incisors, canines - Holding

(b) Canines, premolars - Tearing

(c) Premolars, molars - Grinding

(d) Molars, incisors - Tearing

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Solution

(c) Premolars, molars - Grinding

Incisors-holding. tearing-canines, molars and premolars both help in grinding

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Question 2
Which of the following pair of teeth differ in structure but are similar in function?

(a) Canines and incisors
(b) Molars and premolars
(c) Incisors and molars
(d) Premolars and canines

Q. Match the following:

\begin{matrix} Types of Teeth & Functions i) Incisors & A) Piercing and tearing ii) Canines & B) Grinding food iii) Premolars & C) Cutting and biting iv) Molars & D) Crushing food \end{matrix}

Q. Study the following passage:
Most of the vertebrates have jaws with teeth. The mode of arrangement of teeth on the jaws is called dentition.
The various types of teeth seen in mammals are incisors (I) canines (C) premolars (P) and molars (M). They are used for biting, tearing, chewing and grinding, respectively.
Canines, the tearing teeth are well-developed in carnivores and ill-developed or absent in herbivores.

Now answer the following:
(i) In frogs, all the teeth in the upper jaw look-alike, whereas in human beings they are different. The type of dentition in human beings can be called .........
(a) Homodont (b) Isodont (c) Heterodont (d) Acrodont
(ii) The dental formula of a mammal is written as ICPM=2023/1023. The teeth missing in it are ................
(a) Incisors (b) Canines (c) Premolars (d) Molars

Q. During a dental check up in school, the dentist asked a group of students to name the teeth from the back of the mouth to the front in the correct order. He got four different answers. Identify the one that shows the correct order.
(a) 3 incisors, 2 canines, 1 molar, 2 premolars.
(b) 2 incisors, 1 canine, 3 premolars, 2 molars.
(c) 2 molars, 3 premolars, 2 canines, 1 incisor.
(d) 3 molars, 2 premolars, 1 canine, 2 incisors.

1. Incisors are chisel-shaped and are used for cutting.

2. Canine is dagger shaped and used for tearing.

3. Molars and Premolars are used for crushing and grinding.

Which of the above sentences is correct?

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