I've often heard and read that soda causes tooth decay; most often the reason involves the sugars present in the soda being converted into acids which wear out the enamel.
I'm curious if there is anything in a soda that doesn't contain sugar, such as one that uses aspartame as a sweetener, that would cause tooth decay.
An example of the claim cited in the first paragraph:
MILLIONS of weight-conscious consumers believe it is a healthy choice: low in kilojoules and sugar-free.
But diet cola can make you fat and rot your teeth, according to new research.