"The longer you wait to have a tooth treated the more intensive, lengthy and costly the treatment will be."

more info:
apparently sodium compounds (especially sodium bicarbonate) prevents tooth decay. click here for info from site


help from wikipedia (for background information):
click here for info about sodium benzoate -(in listerine)
click here for info about sodium monofluorophosphate -(in toothpaste)
click here for info about sodium chloride -(salt)


more sites:
http://chetday.com/softdrinkdangers.htm

http://www.ehow.com/how_2192676_eggs-as-dental-hygiene-experiment.html



add:
risk assessment-
do not drink any of the liquids as they may contain unhealthy, unknown substances (and it'll taste gross)