. Interpretation of dental & maxillary roentgenograms . Fig. 14.—Inflammatory periapical tissue of the more acute type, showing prepon-derance of polymorphonuclear Fig. IS.—Chronic type of periapical inflammation. Preponderance of small roundcells. Capillary blood vessels are seen, establishing a connection between the focusof infection and the general circulation. 40 [INTERPRETATION OF ROENTGENOGRAMS of this tissue, which is infiltrated with various blood ele-ments, but especially polymorphonuclear and small roundcells, particularly the Latter (chronic proliferative peri-cementitis).
. Interpretation of dental & maxillary roentgenograms . Fig. 14.—Inflammatory periapical tissue of the more acute type, showing prepon-derance of polymorphonuclear Fig. IS.—Chronic type of periapical inflammation. Preponderance of small roundcells. Capillary blood vessels are seen, establishing a connection between the focusof infection and the general circulation. 40 [INTERPRETATION OF ROENTGENOGRAMS of this tissue, which is infiltrated with various blood ele-ments, but especially polymorphonuclear and small roundcells, particularly the Latter (chronic proliferative peri-cementitis). This peridental thickening takes place atthe expense of the bone of the alveolar process, and asproliferation of round cells occurs, the bone becomes rare-lied and finally destroyed (chronic rarefying- osteitis),leaving- a space filled with a mass of chronic inflamma-tory granulation tissue, the so-called granuloma. Thegranuloma is composed, therefore, of small round cells,polymorphonuclear and endothelial leucocytes, foreign-body giant cells, fibroblasts, capillaries, and fibrous tissue,and sometimes masses of epithelial cells, to which atten-tion will be called
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