By what age do most children typically have all their deciduous teeth?

Most children typically have all their deciduous teeth, also known as baby teeth, by the end of the second year. This is a developmental milestone that occurs during early childhood as children transition from infancy into toddlerhood.

Generally, a child will begin teething around six months of age, with the first teeth usually being the central incisors. By age three, a complete set of 20 primary teeth will have typically erupted, with the last teeth, often the second molars, coming in around age two. This timeframe can vary slightly among individual children, but the end of the second year is the widely recognized average when most children will have all their baby teeth in place.

Understanding this timeline helps caregivers and healthcare providers monitor dental development and readiness for further dental care, such as the transition to permanent teeth that begins around age six.