J. Henry Clarke, School of Dentistry Archive Collection, Accession No. 2011-001
20th century
Black and white photograph of a woman demonstrating toothbrushing technique. Image is labelled, "7. Brush all back lower teeth on inside from gums up" and inscribed, "Dr. O.B. Hill. Salem, Ore."
20th century
Black and white photograph of a woman demonstrating toothbrushing technique. Image is labelled, "7. Brush all back lower teeth on inside from gums up" and inscribed, "Dr. O.B. Hill. Salem, Ore."
