United States. Surgeon-General's Office, American Roentgen Ray Society · New York : Middleditch · leaf 231
Fig. 3. Adjustment for exposure of lower molars. Head is lowered tolevel of body. Note position of fingers and thumb, also that cone is tilted slightlyupward. 223 … Fig. 4. Adjustment for exposing lower bicuspids, canine, and lateralIncisor. Note extension of chin, also marked upward tilt of cone.* This sameupward tilt of cone and extension of chin apply to the lower central Incisors. 224
