"It is good for their baby and will help support women in the workforce."
Coleman said the dental support would help mothers to take care of their own health during pregnancy.
"As pregnancy can lead to dental problems for some women, we will fund one dental course for all pregnant women and mothers up until their baby's first birthday, including a check-up and any resulting x-rays, extractions and fillings."
National believed in supporting families to have healthy babies who grew up to be healthy kids "and we are making real progress".
"Around 94 per cent of 8-month-olds are now immunised and around 800,000 children under 13 are benefiting from free GP visits and prescriptions."
Bennett said the parents and newborns package ensured that the benefits of a growing economy were passed on to families.
The package, which would begin on July 1, 2019 would cost $88 million a year from 2019 - 20, once the 22 weeks of paid parental leave was fully implemented.