What Is a First Molar?
A first molar is a tooth used mainly for chewing or grinding food, a function often referred to as mastication. Adults and older children usually have four first molars in their mouths. In adults, a first molar is the sixth permanent tooth in both sides of the upper and lower jaw. For children, a first molar is typically the fourth deciduous (or baby) tooth in both sides of the upper and lower jaw. In babies, first molars usually appear between the ages of 13 to 19 months. During the teething process, babies typically experience symptoms like gum swelling and sensitivity. This can cause them to be fussy and irritable. Drooling, biting, refusing food, and sleeping problems are other possible signs of teething. Chewing on chilled teething rings and other similar objects can often help relieve teething pain in babies.