Mom to almost-18 Michelle Duggar is going to be one toothless old biddy, if this new study holds any water: according to the data, women who give birth to more children lose more teeth, regardless of socioeconomic status, reports Reuters. Even "in the highest socioeconomic group, women with no children were missing on average less than one tooth, those with one child were missing about two teeth and those with four or more were missing about five teeth." In the lowest social strata, women with four or more children were missing more than eight teeth, on average. Women are more prone to gingivitis during pregnancy, and when knocked up are less likely to go to the dentist, according to experts, who say gestating women want to avoid dental X-rays. [Reuters via MSNBC]