Health

When Do Baby Teeth Come In? Complete Timeline

Q: When does the first tooth come in?

The first tooth typically emerges between **6 and 10 months** (usually a lower central incisor). Some babies get teeth as early as 4 months, others not until 12 months — all are normal.

Q: Is it normal if my baby has no teeth at 12 months?

Yes, it can be a normal variation, especially with a family history of late teething. If no teeth have erupted by **13-14 months**, consult with a pediatric dentist.

Q: Can teething cause a fever?

Teething may cause a **mild fever** ( 38.5°C / 101.3°F) is NOT from teething. A high fever suggests another cause like infection.

Q: When do baby teeth fall out?

Baby teeth start falling out around **age 6** and are completely shed by **12-13 years**. The shedding order usually follows the eruption order.

Q: Does my baby need a dental visit before age 1?

Yes, **first dental visit** is recommended before the first birthday or within 6 months of the first tooth's eruption. It helps with prevention and guides parents on baby oral care.

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Baby tooth eruption typically starts around 6 months and finishes around 30-33 months with all 20 primary teeth complete. This calculator shows which teeth should have come in by your baby's age and what's coming next.

Last reviewed: May 12, 2026 Verified by Hacé Cuentas Team Source: AAP — Baby's First Tooth, Argentine Pediatric Society — Pediatric Dentistry 100% private

When to use this calculator

Your baby is fussy and you want to know if they're teething.
You want to know how many teeth your baby should have at this age.
You want to prepare for the next teeth coming in.
Your pediatrician or pediatric dentist asked about your baby's teething progress.
You want to know when to start dental hygiene.

Example: 10-month-old baby

Age: 10 months.
Expected teeth: 4 central incisors (2 lower + 2 upper) + ~2 lateral incisors.
Total: ~4-6 teeth.
Next: Lower lateral incisors, first molars.

Result: At 10 months, your baby should have between 4 and 6 teeth: the 4 central incisors and possibly the upper lateral incisors. Next: lower lateral incisors.

How it works

1 min read

Baby Tooth Eruption Timeline

Tooth	Eruption (months)
Lower central incisors	6-10
Upper central incisors	8-12
Upper lateral incisors	9-13
Lower lateral incisors	10-16
First molars	13-19
Canines	16-23
Second molars	23-33

Total: 20 primary teeth (10 upper + 10 lower).

Rule of Thumb

Approximate number of teeth = age in months − 6 (from 6 to 26 months).

Teething Symptoms

Excessive drooling

Swollen or red gums

Irritability

Chewing on everything

Sleep difficulties

Mild fever (< 38°C / 100.4°F)

When to Start Dental Care

From the first tooth: Clean with a damp gauze or silicone toothbrush.

From age 2: Toothbrush with fluoride toothpaste (pea-sized amount).

First dental visit: Before the first birthday.

Related Calculators

Motor development — developmental milestones.

Baby sleep — dental pain affects sleep.

Frequently asked questions

When does the first tooth come in?

The first tooth typically emerges between 6 and 10 months (usually a lower central incisor). Some babies get teeth as early as 4 months, others not until 12 months — all are normal.

Is it normal if my baby has no teeth at 12 months?

Yes, it can be a normal variation, especially with a family history of late teething. If no teeth have erupted by 13-14 months, consult with a pediatric dentist.

Can teething cause a fever?

Teething may cause a mild fever (< 38°C / 100.4°F) from local gum inflammation, but a high fever (> 38.5°C / 101.3°F) is NOT from teething. A high fever suggests another cause like infection.

What can I give my baby for teething pain?

Cold teething rings (not frozen), gently rubbing the gum with a clean finger, or age-appropriate pain relief. Ask your pediatrician about acetaminophen at the right dose. Avoid benzocaine gels and homeopathic remedies.

When do baby teeth fall out?

Baby teeth start falling out around age 6 and are completely shed by 12-13 years. The shedding order usually follows the eruption order.

Does my baby need a dental visit before age 1?

Yes, first dental visit is recommended before the first birthday or within 6 months of the first tooth's eruption. It helps with prevention and guides parents on baby oral care.

Does breastfeeding affect my baby's teeth?

Breastfeeding supports healthy jaw development, but breast milk (and formula) contain sugars that can cause cavities if baby falls asleep feeding. Clean gums and teeth after the last feeding of the day.

How many teeth should a 6-month-old have?

At 6 months, teeth are just starting to erupt or haven't erupted yet. Most babies get their first tooth between 6-10 months, so 0 teeth at 6 months is completely normal.