When Do Babies Get Their First Tooth? Timeline and Teething Signs

Teething is a major milestone in your baby's development, but timing varies widely. While many parents expect teething around 6 months, babies may begin teething anywhere from 3 months to over a year old. Understanding the typical timeline, recognizing signs of teething, and knowing how to provide relief helps you navigate this developmental phase.

Teething Timeline

When Do Babies Start Teething?

The first signs of teething can appear as early as 3 months of age, though most babies show signs between 4-6 months. However, the first tooth doesn't usually emerge until 6-12 months, and some perfectly healthy babies don't get their first tooth until after their first birthday.

Key point: Late teething is completely normal and not a sign of developmental delay. Genetics plays a major role in when teething begins.

Order of Eruption

Teeth typically erupt in a predictable order, though variation is normal:

1. Lower front teeth (central incisors): 6-10 months
2. Upper front teeth (central incisors): 8-13 months
3. Upper lateral incisors: 9-13 months
4. Lower lateral incisors: 10-16 months
5. Upper first molars: 13-19 months
6. Lower first molars: 14-18 months
7. Upper canines: 16-22 months
8. Lower canines: 17-23 months
9. Lower second molars: 20-31 months
10. Upper second molars: 25-33 months

Most children have all 20 primary teeth by age 3. However, individual variation is significant, and this order is only a general guideline.

Late Teething

If your baby is 18+ months with no teeth, discuss with your pediatrician to rule out underlying conditions. However, even late teething is often familial (runs in families) and nothing to worry about.

Signs Your Baby Is Teething

Classic Teething Signs

• Excessive drooling: Often first sign; drool rash may develop on chin or cheeks
• Chewing: Babies chew on fingers, toys, blankets, or anything within reach
• Swollen gums: Gums become tender, swollen, and may appear purple or dark red
• Swollen face or cheeks: Facial puffiness and cheek fullness
• Pulling ears or rubbing cheeks: Pain radiates to ears and jaw
• Mild fever: Temperature slightly elevated (99-101°F / 37.2-38.3°C) but not over 102°F (38.9°C)
• Difficulty sleeping: Increased night waking and irritability at bedtime
• Decreased appetite: Less interest in eating due to sore gums

Signs That Are NOT Teething

Don't automatically blame teething for these symptoms—they may indicate other issues:

• High fever (over 101°F / 38.3°C): Suggest infection, not teething
• Diarrhea: While sometimes associated, severe diarrhea suggests infection
• Rash: Except for drool rash around the mouth, rashes aren't teething-related
• Vomiting or severe constipation: These warrant medical evaluation
• Cough or runny nose: Likely viral infection, not teething

If symptoms don't clearly fit teething or your baby has fever over 101°F, contact your pediatrician.

Comforting a Teething Baby

Cold Therapy

Cold numbs sore gums and reduces swelling:

• Cold teething rings: Refrigerate (don't freeze solid) rubber or silicone rings
• Cold wet cloth: Dampen a clean cloth, refrigerate, and let baby chew
• Cold spoon: Keep a spoon in the refrigerator to offer to baby (don't use frozen objects—they can damage gums)
• Cold food: For older babies eating solids, cold applesauce, yogurt, or mashed banana can be soothing

Pressure and Massage

• Gently rub sore gums with a clean finger
• Apply light pressure to swollen areas
• Use a clean, damp cloth to massage gums

Distraction

• Engage baby in play and activities
• Take a walk or change scenery
• Offer different textures: silicone teethers, soft toys, textured rings
• Safe chewing options: rubber teethers, wooden rings (ensure they're lead-free)

Pain Management

Over-the-counter pain relief:

• Acetaminophen (Tylenol): 160 mg per 5 ml; dosing based on baby's weight
• Ibuprofen (Advil): 100 mg per 5 ml; safe for babies 6+ months

Always follow dosing instructions based on your baby's age and weight. Consult your pediatrician for appropriate dosing.

Avoid:

• Topical anesthetics containing benzocaine (FDA warning due to risks)
• Teething tablets or gels with questionable ingredients
• Aspirin (risk of Reye syndrome)
• Numbing gels with unknown ingredients

Dietary Considerations

• Breastfeeding: Continue breastfeeding; offers comfort and soothing
• Bottle feeding: Some babies prefer bottles with cold milk during teething
• Soft foods: Pureed foods, soft fruits, mashed vegetables are easier on sore gums
• Avoid: Hard, crunchy, or sticky foods that could be choking hazards

Teething and Sleep

Sleep Disruption

Teething pain can disrupt sleep. Your baby may:

• Have difficulty falling asleep
• Wake frequently during the night
• Wake very early in the morning
• Skip naps due to discomfort

Maintaining Sleep Routine

• Keep bedtime and nap schedules consistent
• Offer comfort and pain relief before bed if needed
• Use familiar sleep cues (white noise, blanket, etc.)
• Be flexible with nighttime comfort—extra cuddles during teething are okay
• Return to normal routines once teething pain subsides

Dental Care for New Teeth

Cleaning New Teeth

Once the first tooth appears, begin dental care:

• Wipe new teeth with a damp cloth after meals and before bed
• Once teeth erupt, use a soft baby toothbrush (pea-sized amount of fluoride toothpaste for ages 2+, non-fluoride before age 2)
• Brush gently twice daily
• Avoid putting baby to bed with a bottle (increases cavity risk)

First Dental Visit

Schedule the first dental visit by age 1 or within 6 months of the first tooth appearing. A pediatric dentist can:

• Assess tooth development
• Establish good dental habits
• Screen for cavities or problems
• Provide guidance on feeding and tooth care

Common Teething Myths

Myth: Teething causes high fever

Reality: Teething can cause mild temperature elevation, but fever over 101°F suggests infection, not teething. Don't assume fever is just teething.

Myth: Teething causes diarrhea

Reality: Excessive drool from teething may slightly soften stools, but severe diarrhea isn't caused by teething and warrants evaluation.

Myth: All babies teethe at 6 months

Reality: Teething occurs anywhere from 3 months to 13+ months. Late teething is normal.

Myth: Teething causes rash

Reality: Excessive drool may cause drool rash around the mouth, but widespread rash suggests infection or allergic reaction.

When to Call Your Pediatrician

• Fever over 101°F (38.3°C) during teething—may indicate infection
• Difficulty eating or drinking due to pain (beyond normal teething fussiness)
• Tooth hasn't appeared by 18 months (rule out underlying issues)
• Teeth erupt in unusual order or location
• Signs of infection (swelling, pus, or severe pain)
• Baby refuses to eat or drink
• Extreme pain unrelieved by comfort measures

Final Thoughts

Teething is a normal developmental milestone that varies greatly among babies. While it can be uncomfortable, it's a temporary phase. By understanding the typical timeline, recognizing authentic teething signs, and providing comfort, you can help your baby through this period. Remember that some discomfort is normal, but severe symptoms warrant a pediatrician's evaluation. And soon enough, your baby will have a mouth full of teeth!