Baby teeth play an essential role in the healthy growth and development of your child's facial muscles and jawbones. They help with speech development and chewing, and also hold the place for and help guide the new adult teeth to come into their proper position.
If a baby tooth is lost before its permanent replacement is ready to erupt due to trauma or decay, the neighboring teeth may shift into the gap or tilt out of alignment, interfering with the space needed for the permanent tooth to erupt correctly. That can result in crooked teeth or a crowded mouth, which may require future orthodontic treatments.