The bacteria normally found in your mouth turn sugar into acid. While acid is attacking tooth enamel, you can’t feel a thing. But once the acid has begun to create a cavity and attacks the dentin under the enamel, the nerve fibers begin to send out a message that something is wrong. By then, you have tooth decay. So don’t wait until it hurts – Get your HealthCard4Freediscount dental card now so you can SAVE money while getting your teeth checked before you get a toothache!.