There is a wide range of variability of when a first tooth may appear—some babies may not have any teeth by their first birthday! Around 3 months of age, babies will begin exploring the world with their mouth and have increased saliva and start to put their hands in their mouth. Many parents question whether or not this means that their baby is teething, but a first tooth usually appears around 6 months old. Typically, the first teeth to come in are almost always the lower front teeth (the lower central incisors), and most children will usually have all of their baby teeth by age 3.
Usually teething doesn’t cause children too much discomfort, however, many parents can tell when their baby is teething. Babies may show signs of discomfort in the area where the tooth is coming in, the gums around the tooth may be swollen and tender, and the baby may drool a lot more than usual.
Parents can help ease teething pain by massaging their baby’s gums with clean fingers, offering solid, not liquid-filled, teething rings, or a clean frozen or wet washcloth. If you offer a teething biscuit, make sure to watch your baby while he or she is eating it. Chunks can break off easily and can lead to choking. Also, these biscuits are not very nutritious and most contain sugar and salt.
A baby’s body temperature may slightly rise when teething; however, according to a 2016 study in Pediatrics, a true fever (temperature over 100.4 degrees Fahrenheit or 38 degrees Celsius) is not associated with teething and is actually a sign of an illness or infection that may require treatment. If your baby is clearly uncomfortable, talk with your pediatrician about giving a weight-appropriate dose of acetaminophen (e.g., Tylenol) or if over 6 months, ibuprofen (e.g., Advil, Motrin). Make sure to ask your pediatrician for the right dose in milliliters (mL) based on your child’s age and weight.
Many children, however, will have no problems at all when their teeth come in!