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.
Heyman RE, Slep AM, White-Ajmani M, Bulling L, Zickgraf HF, Franklin ME, Wolff MS.Heyman RE, et al.Oral Health Prev Dent. 2016;14(4):315-20. doi: 10.3290/j.ohpd.a36468.Oral Health Prev Dent. 2016.PMID: 27351733