An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Frank AL, Abou-Rass M, Glick DH.Frank AL, et al.J Am Dent Assoc. 1978 Feb;96(2):202-10. doi: 10.14219/jada.archive.1978.0067.J Am Dent Assoc. 1978.PMID: 272410No abstract available.