. Elementary and dental radiography / by Howard Riley Raper . d teeth to show more exactly their location, and so aid in theextraction; (4) in showing the orthodontist when he may move the com-ing permanent teeth by moving the deciduous teeth; (5) in determiningmore exactly than can be done with the single radiograph the size andlocation of a pus cavity or cyst; (6) in cases of fracture of the mandible;(7) in locating exactly bone whorls, calculi in the glands or ducts ofglands and foreign bodies in the antrum; (8) in learning the size, shapeand location of the antrum as an aid in opening into


. Elementary and dental radiography / by Howard Riley Raper . d teeth to show more exactly their location, and so aid in theextraction; (4) in showing the orthodontist when he may move the com-ing permanent teeth by moving the deciduous teeth; (5) in determiningmore exactly than can be done with the single radiograph the size andlocation of a pus cavity or cyst; (6) in cases of fracture of the mandible;(7) in locating exactly bone whorls, calculi in the glands or ducts ofglands and foreign bodies in the antrum; (8) in learning the size, shapeand location of the antrum as an aid in opening into it; and (9) in casesof tumor to locate more definitely the offending body. STEREOSCOPIC RADIOGRAPHY 3i; Plastic Radiography. There is no one thing which so limits the usefulness of the radio-graph as its lack of good perspective. Hence our interest in stereoscopicradiography. Hence, also, our interest in plastic radiography. Plastic radiography is a method of making radiographs in such away that the parts stand out in bas relief. A better name than plastic. Fig. 353. Plastic reproduction of Fig. 34 7.


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