. Elementary and dental radiography . w in child nine years old. 1 he arri>w ]<oints to thetooth in the cyst. The light area represents the cyst. (Radiograph by Pancoast, of Philadelphia.) ciduous second molar tooth at the lower border of the jaw and surroundedby an ovoid clear area. A diagnosis of dentigerous cyst was made. At operation through the mouth the shell of bone was found to con-tain, not the usual fluid, but a resilient mass of pinkish-white tissue sur-rounded by a sac of darker color. The contents, including the soft tissues,the tooth shown in the picture and the sac, were r
. Elementary and dental radiography . w in child nine years old. 1 he arri>w ]<oints to thetooth in the cyst. The light area represents the cyst. (Radiograph by Pancoast, of Philadelphia.) ciduous second molar tooth at the lower border of the jaw and surroundedby an ovoid clear area. A diagnosis of dentigerous cyst was made. At operation through the mouth the shell of bone was found to con-tain, not the usual fluid, but a resilient mass of pinkish-white tissue sur-rounded by a sac of darker color. The contents, including the soft tissues,the tooth shown in the picture and the sac, were removed and the cavitylightly packed with gauze. The patient is making an uneventful further diagnosis of the case will depend on microscopic examinationof the tissue. Fig. 258 was made for a patient of Dr. J. 25$ and 259, Lane, of Philadelphia. Age of patient, eight. Theradiograph shows an unerupted second bicuspid sur-rounded by a light area representing a dentigerous cyst. The upper wall 224 DENTAL RADIOGRAPHY. Fig. 258. A dentigerous cyst containing a lower second bicuspid. (Radiograph by Pancoast, of Philadelphia.) of the cyst and its fluid contents were removed, leaving the tooth in later radiograph (Fig. 259) shows that the tooth is gradually eruptinginto position. (This history is quoted from a paper by Dr. Cryer.) 44. Tn €a$c$ of tumor, Bcnidtt or Ittalidnant. I have already reported a case of cystic tumor, which was referredto the college clinic to have the tumor cut off. There was nothing tocut off, and a radiograph showed a cavity in the bone, aspiration ofwhich accomplished a cure. The following cases occurred in the practice of Tifl. 260. Dr. Cryer : The two patients were sent by different practitioners from different portions of the State of THE USIlS OP THE RADIOGRJlH IX DEXTISTRY 22
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