. Elementary and dental radiography / by Howard Riley Raper . Fig. 131. Fig. 132. Fig. 131. Congenital absence of the upper second bicuspid. Observe the orthodontia appliance in position. (Radiograph by Lewis of Chicago.)Fig. 132. Delayed eruption of an upper second bicuspid. The orthodontia appliance in positionis being used to make space in the arch for the delayed tooth. (Radiograph by Lewis of Chicago.). Fig. 133. A badly impacted lower second bicuspid, with no space at all for it in the dental arch.(Radiograph by Pancoast of Philadelphia.) THE USES OF THE RADIOGRAPH IN DENTISTRY 151 which
. Elementary and dental radiography / by Howard Riley Raper . Fig. 131. Fig. 132. Fig. 131. Congenital absence of the upper second bicuspid. Observe the orthodontia appliance in position. (Radiograph by Lewis of Chicago.)Fig. 132. Delayed eruption of an upper second bicuspid. The orthodontia appliance in positionis being used to make space in the arch for the delayed tooth. (Radiograph by Lewis of Chicago.). Fig. 133. A badly impacted lower second bicuspid, with no space at all for it in the dental arch.(Radiograph by Pancoast of Philadelphia.) THE USES OF THE RADIOGRAPH IN DENTISTRY 151 which should have been occupied by the permanent cuspid; A radio-graph was made (Fig. [30) to locate the missing lateral. It was notpresent in the jaw. Though 1 am not absolutely sure of this, T nevertheless feel quite certain that the permanent lateral was mistaken for atemporary tooth and extracted when the patient was about seven oreight years old—a mistake which could not have happened had the dentistused radiographs. Fig. 131 proves the absence of a second bicus- Tifls. 131 and 132. pid and shows that bridgework must be resorted to, to fill the space. Fig. 132 discloses the presence of a second bicuspid and shows that it will not be necessary to make a bridge. As they appeared before radiographs were taken the cases, from which Figs. 131 and 132 were made, were similar. Fig. 133, a case of Dr. Crye
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