Deciduous Teeth

By Dr. Chea Rainford | April 1, 2021

Deciduous teeth are more commonly known as baby teeth. Humans are born with two sets of teeth; the first set is called the primary, milk, or lacteal dentition. These teeth begin to emerge around 6 months of age, a process known as teething. Typically, the lower central incisors appear first, and teeth usually erupt in symmetrical pairs. By age 2 to 3, most children will have a full set of 20 deciduous teeth.

Why Do We Have Two Sets of Teeth?

At birth, an infant’s mouth is too small to accommodate a full set of permanent teeth. Deciduous teeth serve as placeholders, helping to guide the growth, alignment, and spacing of the adult (succedaneous) teeth that follow.

As permanent teeth develop, specialized cells called odontoclasts begin to resorb the roots of the baby teeth. This natural process causes the baby teeth to loosen and eventually fall out, making room for the permanent teeth to erupt.

Caring for Deciduous Teeth

One of the most common misconceptions is that baby teeth don’t matter because they’ll eventually fall out. But this couldn’t be further from the truth. Cavities in baby teeth can lead to pain, infection, and long-term oral health issues, including an increased risk of cavities in the permanent teeth.

Oral hygiene habits should begin early, even before the first tooth appears. Here’s how to get started:

  • Before eruption: Gently clean your baby’s gums with a soft, damp washcloth after feedings.

  • After teeth emerge, brush twice daily with a soft-bristled infant toothbrush and a small smear of fluoride toothpaste.

  • As more teeth erupt, begin flossing once adjacent teeth are in contact.

  • First dental visit: Schedule your child’s first appointment when the first tooth appears or by age 1, whichever comes first.

Treating Cavities in Baby Teeth

If your child develops a cavity in a baby tooth, it’s important to treat it. Untreated decay can spread, leading to pain, infection, and damage to the developing permanent tooth underneath. Your pediatric dentist may take X-rays and fill the cavity to prevent further progression.

Proper care of baby teeth is essential for maintaining overall oral and general health. As a parent, your commitment to early oral care helps set the foundation for lifelong healthy habits.

If you have questions or need guidance on caring for your child’s smile, contact our office. We’re always here to help.

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