Whitehead's dental mouth gag
Gag (Surgical instrument)
Dental instruments and apparatus
Used to open the mouth during dental work, or when the mouth cannot open naturally because of forward dislocation of the jaw joint's intraarticular cartilage pad
Nickel-plated steel instrument with ridges along each side to allow the dentist to gradually open the patients' mouth wider.
Health Sciences Library
State University of New York at Buffalo
Phisick Medical Antiques
Contact the History of Medicine Collection, http://ublib.buffalo.edu/libraries/units/hsl/history/
Dental mouth gag
Whitehead, Walter, “Whitehead's dental mouth gag,” Digital Collections - University at Buffalo Libraries, accessed January 22, 2018, https://ubdigit.buffalo.edu/items/show/16856.