The Maternal and Child Health Library at Georgetown University provides a series of Knowledge Paths that direct users to quality resources and tools for a range of health topics. Recently, they have updated their knowledge path on Oral Health for Infants, Children, Adolescents, and Pregnant Women.
While this particular Knowledge Path might be of particular interest to dental hygiene and nursing students, there are several more at this site that are worth taking a look at -- excellent starting points for research on many health topics.