Yes, if the mother doesn’t consume a healthy diet while she’s pregnant, pregnancy can lead to tooth health issues. The other two responses to this question that have been posted thus far are both inaccurate. On top of her own ongoing nutritional requirement for those minerals, a mother’s body must supply enough calcium and phosphorus throughout pregnancy to create a full newborn skeleton. Her body will draw both nutrients from her own teeth and bones to make up the difference if she doesn’t consume enough of them through her diet. She won’t likely notice the decline in her own bone density until later in life, but she could possibly experience tooth loss or get one or more cavities.

In the end, evolution has given more importance to foetal development than to the health of the teeth and bones of the mother. As long as the mother doesn’t get so ill to put her capacity to carry the pregnancy to term in danger, the foetus will receive the greater portion of any nutrients that isn’t consumed by both her and the growing child. According to natural selection, in many situations, the cost of producing a healthy child outweighs the long-term harm to the mother’s body.

The other responses are wrong since many pregnant women are unable or unwilling to consume a healthy diet. Many factors could be to blame for this, such as: