What is scientifically proven to be the best mouthwash?

Question

I was using this new Crest night mouthwash and remembering a science test we did in biology to find out what the best mouthwash was. Back then we came up with Scope even over the intensity of Listerine. I was wondering if anyone else has done a similar test and what they came up with.

Answer 1

Scope and Cepacol according to my Micro instructor.

Answer 2

scope doesn't do anything; it only freshens your breath.  if you want something that kills bacteria, and has research to back it up, along with the support of the American Dental Association (ADA), you're gonna have to go with listerine.  it's the only one with the ADA seal of approval

Answer 3

Baking soda and water.