§ Mrs. Joyce Butlerasked the Minister of Health what research has been undertaken in this country into the new compound containing zirconium which is 146W now being tested in America as a preventive of tooth decay.
§ Mr. K. RobinsonI do not know of any, but any scientific reports from abroad will be carefully examined. I have had no reports from America or elsewhere of such controlled clinical trials as would be necessary to evaluate this substance.