Oral surgery; a text-book on general surgery and medicine as applied to dentistry . ig. 223.—Epithelioma About the Molar Tooth. Appearance of lower jawwhen made on plate at correct angle. Teeth as far forward as lateral in-cisors may be shown perfectly. Half of jaw next to tube is thrown up onshadows of molar and orbit and is to be disregarded. tion may fail to reveal the fracture, which may be discov-ered only when the path of the ray is made to traverse thepath of the fracture. Usually, however, fractures of thejaw are accompanied by considerable displacement and thediagnosis is easy. Disloc
Oral surgery; a text-book on general surgery and medicine as applied to dentistry . ig. 223.—Epithelioma About the Molar Tooth. Appearance of lower jawwhen made on plate at correct angle. Teeth as far forward as lateral in-cisors may be shown perfectly. Half of jaw next to tube is thrown up onshadows of molar and orbit and is to be disregarded. tion may fail to reveal the fracture, which may be discov-ered only when the path of the ray is made to traverse thepath of the fracture. Usually, however, fractures of thejaw are accompanied by considerable displacement and thediagnosis is easy. Dislocation of the lower jaw andankylosis are not easily diagnosed by the X-ray, on accountof the difficulty of passing the ray in such a direction thatthe articulation may not have superimposed upon it the 428 X-RAY IN ORAL SURGERY shadows of the dense portions of the base of the bodies in or about the mouth are best locatedstereoscopically, as described below. Salivary calculi are usually quite opaque to are more frequent in the submaxillary duct, and here. Fig. 224.—X-Ray Technic. the shadow of the calculus is usually superimposed uponthe shadow of the lower jaw, and hence may be overlooked,unless a careful scrutiny of the plate be made. Technic—The length of exposure necessary to producea radiogram varies with the location. Thus, a plate which
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectsurgery, bookyear1912
