Yesterday evening my teeth were suddenly so sensitive (all of the molars), that I was unable to brush them. Same thing this morning (no problems with eating though). I ve recently been to the dentist and have no teeth issues. I had eaten some cranberry sauce (unsweetened) yesterday during day. I generally eat a reduced carbohydrate diet . Did the cranberries cause trouble for the enamel? How do I strengthen it so they are not so senstive next time?