Tooth Eruption Timeline

Dental Studio 4 Kids • June 13, 2018

Parents, and even older children, can become concerned about tooth development. Wondering when teeth should erupt, and being concerned when the teeth do not appear on schedule, is common. First, you need to remember that each individual is different. Guidelines are just guidelines, but Dr. Denisse Lasanta and our team at Dental Studio 4 Kids thought we would pass on this information to help you.

Primary teeth

Children normally have 20 primary or baby teeth. The first two to appear are usually the lower central incisors between six to ten months of age. These fall out between five and seven years of age.

Two upper central incisors – eight to 12 months
Two upper lateral incisors – nine to 13 months
Two upper cuspids or canines – 16 to 22 months
Two upper first molars – 13 to 19 months
Two upper second molars – 25 to 33 months
Two lower lateral incisors – ten to 16 months
Two lower cuspids or canines – 17 to 23 months
Two lower first molars – 14 to 18 months
Two lower second molars – 13 to 31 months

As you can see, all the primary teeth normally have erupted before three years of age, but the timeline can vary by four to six months. Except for the lower central incisors and second molars, upper teeth tend to appear before lower teeth.

Permanent or adult teeth

Adults normally have 32 permanent teeth. However, four of these are wisdom teeth or third molars, which are often removed.

Two upper central incisors – seven to eight years
Two upper lateral incisors – eight to nine years
Two upper cuspids or canines – 11 to 12 years
Two upper first premolars or bicuspids – ten to 11 years
Two upper second premolars or bicuspids – ten to 12 years
Two upper first molars – six to seven years
Two upper second molars – 12 to 13 years
Two upper third molars or wisdom teeth – 17 to 21 years
Two lower central incisors – six to seven years
Two lower lateral incisors – seven to eight years
Two lower cuspids or canines – nine to ten years
Two lower first premolars or bicuspids – ten to 12 years
Two lower second premolars or bicuspids – 11 to 12 years
Two lower first molars – six to seven years
Two lower second molars – 11 to 13 years
Two lower third molars or wisdom teeth – 17 to 21 years

Please discuss any of your dental concerns during your visit with Dr. Denisse Lasanta. If there is a problem with tooth development, the earlier we address it, the better the outcome. We specialize in pediatric dentistry and look forward to helping you and your child with all your dental needs. To learn more about tooth eruption, or to schedule an appointment with Dr. Denisse Lasanta, please give us a call at our convenient office in north Tampa, Lutz!

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