Upper side teeth: 9–13 months

The upper lateral incisors often arrive between 9 and 13 months, beside the two front teeth.

26 August 2026 · 2 min read · A Baby Bee Blossom family note

From our home

These are the smaller teeth on either side of the upper front pair. One side may arrive first.

What to expect

The new teeth sit beside the upper front teeth.
Both sides may not arrive together.

Simple care

Clean the front and back of each tooth.
Offer a cool teether if gums are sore.

Sources behind this note

American Dental Association: primary tooth development (opens in a new tab)

Wonder Weeks is referenced where it shaped our family's way of noticing change. Baby Bee Blossom is not affiliated with or endorsed by The Wonder Weeks.

The next little chapter

More Lab Notes

Teething

Lower front teeth: 6–10 months

The two lower front teeth often arrive first, usually between 6 and 10 months.

Teething

Upper front teeth: 8–12 months

The two upper front teeth often arrive between 8 and 12 months.

Teething

Lower side teeth: 10–16 months

The lower lateral incisors often arrive between 10 and 16 months, beside the bottom front pair.