IIRC plaque is mineralized by saliva in the same way as tooth enamel, so something that changes saliva in a way that prevents tartar from forming might be reduc

IIRC plaque is mineralized by saliva in the same way as tooth enamel, so something that changes saliva in a way that prevents tartar from forming might be reducing the amount of calcium in your saliva in a way that could potentially ultimately not be good for your teeth.