I am sorry! I have not had a chance to write specifically about Infant Oral Healthcare. I have attached a few links of the American Academy of Pediatric Dentistry on the topic. These guidelines can also be found with a Google search.
Infant Oral Healthcare:
http://www.aapd.org/media/policies_guidelines/g_infantoralhealthcare.pdf
Perinatal (while in the womb) Oral Healthcare:
http://www.aapd.org/media/Policies_Guidelines/G_PerinatalOralHealthCare3.pdf