The disease of early childhood caries (ECC) is the presence of 1 or more decayed (non cavitated or cavitated lesions), missing (due to caries), or filled tooth surfaces in any primary tooth in a child 71 months of age or younger. A mapping review found higher ECC prevalence in 3-6 years old, no differences in prevalence associated with countries economic status or between developed and developing countries. A systematic review was conducted in 2018...