What is this? It doesn’t hurt. Just makes my mouth sour every time I eat or drink anything?

all of the sudden. My back molar hurt only after I eat. I flossed, brushed my teeth 2-3 times a day and still feel like there’s something in there. It wasn’t like this before. ...

I’m hoping I can continue these grades through high school and that can somehow benefit me because I don’t want to have to be 500k in debt when I’m done with dental school. S...