Teething: the timeline and what actually helps

Medically-informed · Sources: AAP, FDA · Updated July 2026 · 4 min read

The real timeline

The average first tooth — usually a bottom front incisor — arrives around 6 months, but the normal range is enormous: some babies debut at 3–4 months, some celebrate their first birthday with a gummy grin, and both are fine. Order matters more than dates: bottom front pair, top front pair, then the neighbors working outward, with first molars typically in the second year. Drooling and everything-in-the-mouth from 3–4 months is usually developmental exploration, not necessarily an imminent tooth.

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What teething does — and doesn't — cause

Genuinely attributable: sore, swollen gums for a few days around eruption, extra drool, gnawing, crankiness, some disrupted sleep. Not attributable, per pediatric guidance: high fever, diarrhea, vomiting or a truly sick baby. A temperature of 100.4 °F (38 °C) or higher is illness until proven otherwise — and in a baby under 12 weeks it always needs same-day medical attention. "It's probably teething" is the most common way a real illness gets missed; when in doubt, treat symptoms as symptoms.

Is this normal for your baby?

FirstWeeks answers with your baby’s age and today’s log in mind — with pediatric sources attached.

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What safely helps

Cold and pressure are the whole toolkit: a solid rubber teether chilled in the refrigerator (not frozen solid), a clean cold wet washcloth to chew, a clean finger rubbing the gum, extra cuddles for the mood. If a rough patch needs more, age-appropriate acetaminophen — or ibuprofen after 6 months — dosed by your pediatrician's guidance for a day or two is reasonable. Wipe the drool valley on the chin and add a thin barrier layer to prevent the classic drool rash.

What to skip

Benzocaine gels and liquids for infants (FDA-warned — risk of methemoglobinemia, a serious blood-oxygen condition), homeopathic teething tablets (FDA-warned after inconsistent belladonna content), amber teething necklaces (strangulation and choking risk with no proven benefit), and liquid-filled or frozen-hard teethers that can leak or bruise. The boring cold rubber ring outperforms the entire boutique aisle.

Once teeth exist, they're teeth

Start brushing at tooth number one: soft infant brush, a rice-grain smear of fluoride toothpaste, twice a day. First dental visit by the first birthday or within six months of the first tooth. And no bottles in bed once teeth are in — milk pooling overnight is the classic route to early cavities.