Many plagues were caused by lack of basic hygiene. Of course I wouldn't want to miss modern medicine, but living back then with a lot less people around and equipped with todays knowledge would actually be pretty neat.
....but not with my teeth....i would have probably died already if not for modern ways of dealing with tooth-aches....
I am in a similar boat. Most of things i would be ok but two in modern standards small issues would render me definitely deaf, likely infertile and possibly dead.
Apparently the main reason we need modern dentistry now is because of the amount of sugar we consume. If you were eating the food and drinks of the time you'd probably be ok