The Lifespan of Baby Teeth: When Do They Erupt & Fall Out?

July 10, 2024

a mom cleaning her baby's teeth

Children seem to grow up so incredibly fast. Two major markers of time for many parents are the eruption of their children’s baby teeth (primary teeth) and when they fall out, signaling their little one’s growth and development. During these times, routine visits to their pediatric dentist are crucial to make sure their oral structure is developing properly. Learn about your child’s dental health and development below, like when you can expect their first teeth to emerge and fall out, and how to tackle teething discomfort.

When Do Baby Teeth Grow In?

Primary teeth, more commonly known as baby teeth, are the first teeth that erupt into the mouth, as early as three months old and as late as 15 months old. To begin with, they have about 20 primary teeth that emerge as sets as follows:

  1. Lower then upper central incisors
  2. Upper then lower lateral incisors
  3. Upper and lower first molars
  4. Upper and lower canines
  5. Upper and lower second molars

During this six to eight-month age range, your baby will also begin to eat different solid foods in addition to breast milk and formula, including vegetable purees, eggs, and strips of protein like cooked chicken, so it’s an exciting time!

When Does Teething Start?

As early as three months old, you may notice that your baby shows signs of discomfort due to teething, as their gums will be sore, inflamed, and may ache. Your family’s knowledgeable pediatric dentist can help you find safe and effective methods to help curb their pain and irritation and allow everyone in the house to find a little more rest.

Some signs that could signal that your child is teething include:

  • Increased drooling
  • Face rash caused by drool
  • Fussiness
  • Red and swollen gums
  • Difficulty sleeping
  • A slight increase in body temperature, but no fever

When Do Baby Teeth Fall Out?

Baby teeth usually begin to fall out and make room for permanent teeth around six to seven years old, although the exact age can vary from child to child. By the time they turn 12, most or all of their baby teeth will have fallen out and their permanent teeth will be growing in.

During these key times in your child’s growth and development, routine trips to the pediatric dentist can help educate you about the changes that are occurring and ways to help your child get through them. Although the fussiness and discomfort surrounding teething may not be ideal, having a professional on your side to help guide you can be a big relief!

About the Practice

At Brush Pediatric Dentistry, our team is comprised of five highly skilled and compassionate board-certified pediatric dentists. In addition to being knowledgeable professionals, they’re also all kind and understanding mothers themselves, allowing parents to truly rely on them. As a team that’s well-versed in treating young children, our team is able to help them feel right at home whenever they’re with us. For questions or to schedule an appointment for your baby, visit Brush Pediatric Dentistry’s website or call 630-504-2223.