Primary teeth are important to your child's future dental health because they help with proper chewing and eating, aid in speech development and add to an attractive appearance. A child who can chew easily, speak clearly and smile confidently is a happier child. Primary teeth permit normal development of the jaw bones and muscles. They save space for the permanent teeth and guide them into position. If a baby tooth is lost too soon, the teeth beside it may tilt, causing permanent teeth to come in crooked. In addition, your child's general health can be affected if diseased baby teeth are not treated.