In order to determine the average strength of the jaws, Dr. G. E. Black, president of the Chicago Dental University, some time ago devised an instrument of very simple design but with a name that ...

More than a third of New Jersey's children have untreated tooth decay, far outpacing the national average. Advocates point to limited access to care.

Story continues below photo gallery More than a third of New Jersey's children have untreated tooth decay, far outpacing the national average. And the leading cause, advocates say, is the limited ...