Primary (Baby) Teeth Eruption

The eruption of primary teeth, also known as deciduous or baby teeth, follows a similar developmental timeline for most children. Primary teeth begin forming beneath the gums during the fourth month of pregnancy, making a nutritious prenatal diet crucial for the infant’s teeth, gums, and bones.

Generally, the first primary tooth appears between six months and one year. By age three, most children have a full set of 20 primary teeth. The American Dental Association (ADA) recommends scheduling a “well-baby” dental appointment about six months after the first tooth emerges. Pediatric dentists guide parents on prevention strategies and emphasize a gentle, consistent home care routine.

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Importance of Primary Teeth

Primary teeth support:

  • Speech development
  • Proper jaw growth
  • Good chewing habits
  • Correct spacing and alignment for adult teeth

Proper care helps prevent cavities, premature tooth loss, malnutrition, and childhood gum disease.

Order of Primary Tooth Eruption

The typical eruption sequence is as follows:

  • Central Incisors: Lower and upper front teeth (6–12 months). These are usually the first to be lost (6–7 years).
  • Lateral Incisors: Adjacent to central incisors (9–16 months). Lost between 7–8 years.
  • First Molars: Large flat teeth towards the back (13–19 months). Can be sore; lost between 9–11 years.
  • Canines (Cuspids): Next to lateral incisors (16–23 months). Lost between 10–12 years.
  • Second Molars: Backmost teeth (23–33 months). Lost between 10–12 years.

Additional Facts About Primary Teeth

  • Girls often experience earlier tooth eruption than boys.
  • Lower teeth usually erupt before upper teeth.
  • Teeth often erupt in pairs; some months may have no new teeth, while others may see multiple eruptions.
  • Primary teeth are smaller and whiter than permanent teeth.
  • School-age children usually have a mix of primary and permanent teeth.

If you have questions or concerns about your child’s primary teeth, please contact our office.