149k views
1 vote
How many deciduous teeth does a child usually have?
1) 20
2) 24
3) 32
4) 36

User Tushark
by
7.4k points

2 Answers

1 vote

Final answer:

A child usually has 20 deciduous teeth, also known as primary or baby teeth, which begin to appear around 6 months of age and are eventually replaced by permanent teeth.

Step-by-step explanation:

how many deciduous teeth a child usually has is: 1) 20.

Deciduous teeth, also known as primary teeth or baby teeth, are the first set of teeth that emerge in infancy and early childhood. A normal set of deciduous teeth includes 20 teeth. These begin to appear at about 6 months of age. The incisors are typically the first to emerge, followed by the first molars, canines, and second molars. The sequence in which these teeth emerge is generally the same for most children, although the exact age at which each tooth comes in can vary.

Around the age of six, these deciduous teeth begin to be replaced by permanent teeth. By the time this process is completed, there will be a total of 32 permanent teeth, including incisors, canines, premolars, and molars. It is important to maintain good dental hygiene from early childhood to ensure the health of both deciduous and permanent teeth.

User Arthur Ronald
by
7.6k points
5 votes

Final answer:

A child typically has 20 deciduous teeth, which emerge starting at around 6 months of age and are eventually replaced by permanent teeth as the child grows.

Step-by-step explanation:

A child usually has 20 deciduous teeth, which are also known as baby teeth. These teeth begin to appear at about 6 months of age. Deciduous teeth are important for several reasons including helping children chew their food, speak clearly, and hold space in the jaws for the larger permanent teeth that will come in later. Between the ages of 6 and 12, these baby teeth are replaced by a full set of 32 permanent teeth.

Types of Deciduous Teeth:

Eight incisors (four on the top, four on the bottom)

Four cuspids (canines)

Four first molars

Four second molars

The sequence in which these teeth emerge is similar for most children, with individual variations in the exact age they appear. Each deciduous tooth holds a place for a future permanent tooth that will replace it. By understanding the developmental process of teeth, you can see the importance of caring for both deciduous and permanent teeth.

User Avinash Shah
by
7.9k points