Primary teeth, also known as "baby teeth" or "deciduous teeth," begin their development journey beneath the gums during the second trimester of pregnancy. These first teeth typically start to emerge above the gums between six months and one year after birth. By the time a child reaches preschool age, they usually have a full set of 20 baby teeth, including four molars in each jaw.

A common misunderstanding is that primary teeth are not significant for a child's long-term oral health. However, the American Dental Association (ADA) stresses their importance and advises parents to schedule a "baby checkup" with a pediatric dentist within six months of the first tooth appearing.

What are the functions of primary teeth?

The eruption of primary teeth can sometimes be uncomfortable. Offering chilled chewing rings, moist gauze pads, and clean fingers for the child to bite on can provide relief for tender gums. While most three-year-olds have their full set of primary teeth, this process happens gradually, typically starting with the front teeth.

Here are the key functions of primary teeth:

Supporting Speech Development

Clear speech is essential for a child's cognitive, social, and emotional development. The proper positioning of primary teeth aids in correct pronunciation and prevents the tongue from interfering during speech formation.

Facilitating Eating and Nutrition

Children with poorly formed or severely decayed primary teeth are more prone to dietary deficiencies, malnutrition, and being underweight. Proper chewing motions are learned over time and with practice. Healthy primary teeth support good chewing habits and facilitate nutritious eating.

Boosting Self-Esteem

Even very young children can be quick to notice unhealthy or crooked teeth. Proper care of primary teeth can make social interactions more comfortable, reduce the risk of bad breath, and promote confident smiles and positive social interactions.

Guiding Permanent Tooth Alignment

A primary function of primary teeth is to reserve the appropriate amount of space for the developing permanent teeth. These "spacers" also help guide the adult teeth into their correct positions and promote healthy jaw growth. If primary teeth are lost prematurely and left untreated, the remaining teeth can shift and fill the space incorrectly. For this reason, pediatric dentists often recommend space-maintaining devices.

Promoting Good Oral Health

Severely decayed primary teeth can increase the risk of childhood periodontal disease. In this condition, oral bacteria invade and damage the gums, ligaments, and eventually the bone supporting the teeth. If left untreated, primary teeth can be lost prematurely, causing health and spacing problems for the emerging permanent teeth. To prevent periodontal disease, children should follow an adult-supervised oral care routine daily, and infant gums should be gently wiped with a clean, damp cloth after feedings.

If you have any questions or concerns about your child's primary teeth, please contact their pediatric dentist.