test tubes filled with liquid

The Science of Tooth Decay

Years ago when I was contemplating going to dental school, there was rumor that the occupation of dentist would soon become obsolete. Like a typewriter repairman or a switchboard operator, someday fixing cavities would be a thing of the past. Public water fluoridation, sealants and six-month cleanings were all that was necessary to rid humans of this disease and scientists were touting a vaccination for the bacteria that caused tooth decay.