Milk teeth play an important role in the alignment and spacing of permanent teeth. They support the upper and lower jaws vis-à-vis each other. Constant chewing with deciduous dentition is an essential prerequisite for the correct development of the jaws. If milk teeth are lost too early on, the position of the other teeth may be affected, which is why it is important that milk teeth should remain intact until they are replaced by permanent teeth.
Milk teeth are like babies - they need special care. And special protection, because the enamel of milk teeth and new permanent teeth is still soft and not yet fully mature.