Upper Central Incisors Eruption
Teeth

Upper Central Incisors Eruption

Typical Timing & Development Window

Starts
26
wk avg
Median
43
wk
Std dev
±4
wk
Flag
51
wk
📊 Visual Timeline & Milestone Benchmarks
68% Starts Median Flag wk 23 5.3 mo wk 31 7.1 mo wk 39 9 mo wk 46 10.6 mo wk 54 12.4 mo
Typical range (68% of babies) Earliest typical start Median milestone age Pediatrician check-in flag

What these numbers mean

Starts ~wk 26

The average age babies first begin showing early signs of this skill. Before this, it's simply too early — there's nothing to worry about.

Median wk 43

The midpoint age: half of babies have reached this milestone by here, half a little later. It's a typical target, not a deadline.

Std dev ±4 wk

How spread out the timing is. About two-thirds of babies achieve it within one standard deviation of the median (the shaded band, wk 39–47). Wide bands mean a normal range of variation.

Flag wk 51

A gentle check-in point. If your baby hasn't shown this by around here, it can be worth mentioning to your pediatrician — most often it's still perfectly fine, just later.

About this milestone

The upper central incisors erupt through the top gums, providing central biting capabilities and enabling the baby to bite and cut soft foods.

What to try & how to support
  • 1. Continue to brush all erupted top and bottom teeth twice daily with a rice-grain amount of fluoride toothpaste.
  • 2. Offer cold, soft foods (like unsweetened apple purée) to help soothe the top gum line.
  • 3. Keep a soft, clean cloth nearby to wipe away heavy drool and keep your baby's face dry.
What to avoid & gentle reminders
  • 1. Avoid using hard, sharp, or brittle plastic toys for teething, as they can scratch emerging enamel surfaces.
  • 2. Avoid over-the-counter teething gels containing benzocaine or lidocaine due to associated medical safety warnings.
  • 3. Do not skip daily brushing sessions if the infant is fussy; prioritize shorter, gentler sweeps instead.

Prerequisites & Foundations

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