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Our Health Library information does not replace the advice of a doctor. Please be advised that this information is made available to assist our patients to learn more about their health. Our providers may not see and/or treat all topics found herein.

Primary (baby) teeth

Upper and lower sets of primary (baby) and secondary (permanent) teeth, showing cuspids, bicuspids, incisors, molars, and wisdom teeth

An infant's first teeth are called baby teeth or primary teeth. They usually start to come in (erupt) between 6 months and 12 months of age. A total of 20 primary teeth erupt by about 3 years of age. Children begin to lose their primary teeth between the ages of 6 and 11 years. They are replaced by secondary, or permanent, teeth.

Current as of: September 27, 2023

Author: Healthwise Staff
Clinical Review Board
All Healthwise education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

Main Street Pediatrics now offers the latest Pfizer COVID-19 vaccine and the flu vaccine, recommended by the CDC and the American Academy of Pediatrics for ages 6 months and above. Please call our office to schedule a COVID-19 vaccine visit for your child. For more details read our recent blog post.