MEASURING THE RADIOPACITY OF THE LIP AND MANDIBLE
ALBERT G. RICHARDS B.S., M.S.1
1 School of Dentistry, University of Michigan, Ann Arbor, Mich.
Two penetrometers are described which permit the measurement of the radiopacity of the soft and osseous tissues of the lip and mandible. Data are presented which indicate how the tube voltage should be changed to produce radiographs of uniform density on a variety of types of patients. Additional uses for penetrometers also are listed.
Submitted on July 31, 1952
