As stated previously, Betsy should receive a thorough dental exam and dental hygiene therapy, and have any carious lesions, or other dental conditions taken care of right away for the following reasons:

Dental Hygiene Therapy:
Betsy's periodontal tissues need to be evaluated to determine if periodontal disease is present. Studies have shown that: (click on the correct answer)

poor maternal periodontal health can increase an infant's potential for low birthweight and possibly for pre-term or premature birth
any infection, including periodontal infection, is cause for concern during pregnancy
pregnant women who have periodontal disease may be seven times more likely to have a baby that is born too early and too small
all of the above
none of the above