EditorialA box of toothbrushes at Dr. Michael D. Fox elementary school, which an on-site dental hygienist for students, in Hartford, Conn. on Sept. 14, 2022. (Ike Abakah/The New York Times)
EditorialBefore the pandemic struck, Tiffany Foy, right, was part of a team of dental hygienists who fanned out to schools in rural and urban parts of Oregon to provide free care to thousands of children. (Joe Kline/The New York Times)