I use crest and just recently came from the hygienist 3 weeks ago and she found no significant problems, but I'm headed to the store now to by some tooth paste without polyethylene, until I figure out what's going on. Here is why. For all I know the shit could be good for your gums, but I'm not taking any chances.

http://khon2.com/2014/09/16/crest-toothpastes-controversial-ingredient-polyethylene/

 

Polyethylene ain't good for anything that wants to live.

 

Its ridiculous how everything requires research these days. Nothing can be taken for granted.