Fiona, I had all 4 of my wisdom teeth yanked when I was 19 (go figure..just as soon as I "got wise"...I removed it) LOL....&, about 3 yrs. ago, I lost a molar. I just think that, somewhere in between the wisdoms, & that molar, well, my "sweet tooth" must have been wedged in between them. It's...well, dang it, its just gone!
It's possible! I know mine is from quitting smoking...or was it the heart attack? We'll never know!