Question

Dental formula in human beings
A. 3223/3223
B. 2123/2123
C. 1232/1232
D. 2233/2233

Answer 1

Hint: The word dentition is basically used to show the arrangement of teeth, which include their number and types. Remember, normally an adult has 32 teeth. Different animals possess different types and shapes of teeth, it is based on nutrition type in animals or their eating habits.

Complete answer:
You may already know; all humans have four types of teeth namely-Incisors, Canines, Premolars and Molars. All the four types of teeth are situated on the jawbones which extends into the buccal cavity and all four types of teeth perform various functions such as tearing, cutting, crushing, and shredding the food. We all know teeth are very essential when eating because they help us to consume a wider palate of food and also perform a big role in digestion.
Keep in mind that, the method of describing the total number of teeth in humans and other animals based on their arrangement is termed as the Dental Formula, and is expressed using letters and figures. In dental formula, letters used in this formula are dependent on the four types of teeth namely, Incisor, Canine, Premolar, and Molar.
Always remember, The Dental Formula is expressed as:
(number of each type of teeth present in the upper one side jaw) / (The number of teeth present on one side of the lower jaw). In human adults we have- 2 incisors 1 canine 2 premolar 3 molar present in the upper jaw, whereas 2 incisors 1 canine 2 premolar 3 molar on the lower one side of jaw.

Therefore, our correct answer is the (B) option.

Additional information:
Humans and most other mammals have two different sets of dentitions termed- the deciduous dentition or milk teeth, and the permanent dentition (secondary dentition or adult teeth).

Note:
Remember, there are different types teeth
> Incisors are the four front teeth situated in both jaws, the upper and lower.
> Canines are four in the oral cavity.
> Premolars are teeth located behind and adjacent to the canines and functions to crush food.
> Molars are the most posterior teeth in the mouth.