Baby Teething Stages

Written by jennifer dobbin
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Baby Teething Stages
Teething can be an exciting but uncomfortable time for parents and babies. (Photodisc/Photodisc/Getty Images)

The first few years of a baby's life include many important milestones, such as first smiles, steps, words and teeth. At birth, a baby's jaw bone generally houses 20 primary teeth, which erupt in stages. The teething stages are only meant to be guidelines for parents, as each child develops at his own pace.

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Incisors

Incisors are the first teeth to erupt, usually starting with the lower central incisors at 6-10 months of age. The upper central incisors erupt when the baby is 8-12 months old. Next come the upper lateral incisors, at 9-13 months, and the lower lateral incisors, at 10-16 months.

Canines (cuspids)

The next teeth to erupt are the canines, also known as cuspids. The upper canines erupt at 16-22 months, and the lower canines erupt at 17-23 months.

Molars

A baby's first molars generally appear shortly after his first birthday. The upper first molars erupt at 13-19 months, and the lower first molars erupt at 14-18 months. Around the child's second birthday, the second molars begin to erupt. The lower second molars erupt at 23-31 months, and the upper second molars erupt at 25-33 months.

Losing Teeth

Children begin to lose their primary teeth at 6-7 years of age. By age 17-21 years, all permanent teeth have erupted.

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