Immune system plays role in tooth and filling decay: UofT study
by from on (#4ECFN)
![TEETH___Content.jpg](http://media.zuza.com/3/f/3f10b043-74c8-4585-aea2-04d251c6ebdb/TEETH___Content.jpg)
Toronto researchers say they've shown for the first time that the body's own immune system likely plays a role in both the decay of teeth and the breakdown of fillings.