Recreate the cavity-preventing GMO bacteria BCS3-L1 from precursor
it's shocking that it hasn't been mentioned (ok, except by me in another comment) but flouridating municipal water systems through/after the 1960's at least in the US had a huge impact on the number of cavities/caries among children. Yuge. There are suspicions that fouride isn't good for us, and I mean beyond our precious bodily essences too, but in terms of teeth, it's been miraculous.I'm just mentioning it because people are talking about bacteria being "the deciding factor" to account for differences in outcomes, and there's a flouride elephant in that room.