Baby teeth, which are also called primary teeth, are the first set of teeth to erupt in infancy. Baby teeth are temporary, meaning that they fall out and get replaced with adult teeth in childhood. A complete set of baby teeth consists of 20 teeth, including incisors, canines and molars. The eruption typically begins at 6-10 months old and will be finished by 2½-3 years old. Baby teeth fall out when the adult teeth growing from underneath resorb the baby teeth’ roots and therefore become loose. The first baby teeth that typically fall out are the lower two front teeth, followed by the upper two front teeth. During the teething process, there may be some soreness in the gums. A damp gauze or teething ring can be used to gently soothe the area.