Baby Teething Timeline

Baby Teething Timeline

None of us wants our children to grow up too fast, but there are lots of marvels along the way and your baby’s first tooth is an exciting milestone.

Generally, teething can start anywhere from 3 months to 12 months of age. (Did you know? A small number of babies — 1 in 2,000 — may be born with a tooth already erupted!)

Some babies sail through teething with no symptoms at all while others may show signs that a tooth is on the way; look for teething signals such as constant drooling.

As with most aspects of child development, the baby teething timeline is different from child to child. As a general rule, once your baby starts teething he will sprout about four teeth every six months. These first teeth are known as primary or milk teeth, and they will eventually be replaced by permanent adult teeth when your child is between 6 and 12 years of age.

Your baby’s first teeth are likely to arrive between 4 and 7 months, with the front lower teeth (the central incisors) tending to come through first. Their counterparts on the upper jaw usually follow.

Teeth may come through more or less in pairs, with the upper and lower laterals appearing between 9 and 16 months, followed by the canines, which will probably make an appearance before your child is 2 years old. The last to appear are the molars, which don’t generally pop through until just before a toddler’s third birthday. While girls tend to teethe earlier than boys, most children are likely to have a full set of 20 teeth by the time they are 3 years old.

Growing teeth is not a competitive sport and your baby’s teeth will arrive when they are ready. So don’t be concerned if your friends’ children get teeth before your children do.

Remember that babies can chew even without teeth and it is always important to be mindful of choking risk and to supervise babies and young children when they are eating. Even when children have a full set of teeth, certain foods present a choking hazard; grapes, for example, should always be quartered (long ways) before being served to little ones.

Try not to worry. Instead enjoy every exciting milestone in your child's development. Rest assured that your baby’s teeth will arrive when they are ready.

Teething and Diaper Rash — Fact or Fiction?
According to U.S. pediatrician Thomas G. DeWitt, M.D., teething, diaper rash, and loose stools may happen at the same time but they are probably unrelated. Diarrhea with teething is not an expected side effect. If your baby has diarrhea while he is teething, watch carefully for signs of dehydration and please contact your healthcare professional if the baby is running a high fever (greater than 102 degrees Fahrenheit) or his stool contains blood or pus.

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