Primary dentition

Primary Dentition

Primary dentition, also known as deciduous dentition or "baby teeth", is the first set of teeth in the growth development of humans and many other mammals. It comprises 20 teeth that come in by the time a child is 2 to 3 years old.

Development

The development of primary dentition begins in the embryo at the fetal age of six weeks. At this stage, the dental lamina forms within the developing jaws, which will eventually form the tooth buds for the 20 primary teeth. The first primary teeth to erupt are the lower central incisors.

Structure

Primary teeth are smaller in size and whiter in color compared to permanent teeth. They consist of two incisors, one canine, and two molars in each jaw quadrant. The primary molars are replaced by the permanent premolars.

Function

Primary dentition plays a crucial role in the development of the oral cavity and the health of adult teeth. They maintain the arch length within the jaw, are involved in the development of muscles and the jaw, and facilitate proper speech development.

Dental Care

Proper dental care for primary teeth is essential to prevent dental caries and other oral health problems. Regular dental check-ups, proper brushing and flossing, and a balanced diet are recommended for maintaining healthy primary dentition.

See Also

• Permanent dentition
• Tooth eruption
• Dental caries