These hearings before the Select Committee on Nutrition and Human Needs of the United States Senate include testimony on the subject of research into the use of phosphates to prevent dental decay. The purpose of the hearing was to explore certain dental health questions raised during the committee's recent hearings on the Television Advertising of Food to Children. It was brought to the committee's attention during those hearings that considerable research has been conducted on the possibilities of adding phosphates to various foodstuffs--presweetened cereals and refreshment drinks--to help reduce the problem of dental decay in children. Some of the most extensive research in this area was privately conducted by the General Foods Corporation during the last decade, with the special approval of the Food and Drug Administration. The committee's hearing focuses on these studies. Representatives of the Food and Drug Administration, as well as the General Foods Corporation, testified. These witnesses included: Dr. Lloyd B. Tepper, associate commissioner for science, accompanied by Dr. Ogden C. Johnson, director, Division of Nutrition, Office of Sciences; Dr. Clarence C. Gilkes, dental officer, Division of Surgical-Dental Drug Products; Mr. Gerald F. Meyer, director, office of Legislative Services, Food and Drug Administration, and A. S. Clausi, vice president and director of corporate research, General Foods Corporation. [Two pages of copyrighted materials have been deleted from this document. Some pages may not be clearly legible due to the size of the print.] (Author/JM)