Usually permanent teeth come in under the baby teeth and wear away the baby tooth roots. This causes the baby teeth to become loose and fall out.
Sometimes the permanent teeth can be seen coming in behind the baby teeth, making two rows of teeth.
If you see this, do no panic! Encourage your child to wiggle their baby teeth after washing their hands with soap and water. If the baby teeth are still not wannting to come out, we can help you!
Once the baby tooth comes out the permanent tooth can then move into position with the help of your tongue.