United States. Surgeon-General's Office, American Roentgen Ray Society · New York : Middleditch · leaf 229
Fig. 1. Position of patient, film and tube for exposure of upper molar region.Note elevation of head and slight downward tilt of cone. 221 … t?tp 2 Adjustment for exposure of upper bicuspids, canine, and lateralincisor Note tC™ £tilts Se than in Fig. 1. This same tilt of cone is usedfor exposing the central incisors. 222