When should my child get their first baby tooth? This can vary significantly child to child. But typically between 6 months to 1 year. Click here to see the eruption chart provided by the ADA. Why are Baby Teeth important? Primary teeth often called "Baby Teeth" are important for many reasons. Children learn how to eat and chew solid foods with these teeth. They also learn to develop speech using these teeth. One of the most important things they do is act as space holde