. Elementary and dental radiography . ht to be aft of the foreign material, which proved to be cement and gutta-percha—mostly cement—was removed through the external alveolar plate. A radiograph (Fig. 220) was made, and shows some cement (the larger shadow) and some gutta-percha (the small shadow) still in the abscess cavity. These bodies were removed and another radio-Tig. 221. graph (Fig. 221) made to prove that no foreign irri-tating body remained in the abscess cavity. THE USES OE THE RADIOGRAPH IN DEXTISTRY 203 The pus sinus was then curetted, washed, cau-Tlg. 222. terized, injected with


. Elementary and dental radiography . ht to be aft of the foreign material, which proved to be cement and gutta-percha—mostly cement—was removed through the external alveolar plate. A radiograph (Fig. 220) was made, and shows some cement (the larger shadow) and some gutta-percha (the small shadow) still in the abscess cavity. These bodies were removed and another radio-Tig. 221. graph (Fig. 221) made to prove that no foreign irri-tating body remained in the abscess cavity. THE USES OE THE RADIOGRAPH IN DEXTISTRY 203 The pus sinus was then curetted, washed, cau-Tlg. 222. terized, injected with bismuth paste, and another radiograph (Fig. 222) made. All of this work wasdone at one sitting, and consumed about two hours time. The radiograph(Fig. 222) shows that the bismuth paste does not entirely fill the abscesssinus. It has been my experience that the most vigorous and earnestefforts often fail to completely fill an abscess cavity with bismuth manufacturers of the paste tell us that every crevice must be filled.


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