It is essential that a child's primary teeth are healthy, because their development sets the stage for permanent teeth. If primary teeth become diseased or do not grow in properly, chances are greater that their permanent replacements will suffer the same fate. For example, poorly formed primary teeth that don't erupt properly could crowd out spaces reserved for other teeth. Space maintainers can sometimes be used to correct this condition, if it is spotted early enough. Read more about preventative care in children HERE