The main difference between milk and permanent teeth lies in their structure and longevity. Milk teeth are smaller and have shallower roots, designed to eventually fall out. Permanent teeth, with larger roots and harder enamel, are built to last a lifetime. The first permanent molars typically erupt behind the milk teeth around age 6, marking the start of the mixed dentition phase. Pr... https://unidental.in/milk-teeth-vs-permanent-teeth-guide/