Could this be the end...

Could this be the end of dentistry? "A genetically modified mouthwash has been developed which could effectively eliminate tooth decay, scientists claim. The mouth rinse contains a friendlier GM version of the bug that rots the teeth which does not produce enamel eroding acid. When the solution is squirted into the mouth, the good bugs take over from the Streptococcus mutans bacteria and prevent them from returning. According to the researchers, a single five-minute treatment costing less than $100 would last a lifetime."