Most babies cut their first tooth between 4 and 10 months — usually a bottom front tooth — though anywhere in the first year and beyond is normal. Teething gets blamed for almost everything, so it helps to know what it genuinely causes and what it doesn't.
**What teething does *not* cause:** true fever of 100.4°F (38°C)+, diarrhea, vomiting, or a really sick baby. Those symptoms mean illness — don't write them off as teeth, especially in a baby under 3 months (call the doctor for any fever at that age).
Skip teething necklaces (amber or otherwise — strangulation and choking hazards), gels containing benzocaine or lidocaine (unsafe for infants, per FDA warnings), homeopathic teething tablets, and liquid-filled teethers that can leak.
The moment a tooth appears, start brushing twice a day with a soft baby brush and a rice-grain smear of fluoride toothpaste, and plan a first dental visit by age one.
*Always consult your pediatrician for advice specific to your baby.*
Daily play plans, CDC milestones, trackers — and CrySense, which reads your own logs when the crying starts.
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