General and dental pathology with special reference to etiology and pathologic anatomy; a treatise for students and practitioners . tified squamous epithelium has lostits characteristic appearance; the projections of epithelial cells between the papillae ofconnective tissue have become elongated. The gingiva was the seat of a chronic inflam-mation which by continuity involves the peridental membrane and the alveolar marks the beginning of pocket formation. a, a, elongated epithelial projections; b,connective-tissue stroma. are also to be seen. The infection spreads slowly as a gener
General and dental pathology with special reference to etiology and pathologic anatomy; a treatise for students and practitioners . tified squamous epithelium has lostits characteristic appearance; the projections of epithelial cells between the papillae ofconnective tissue have become elongated. The gingiva was the seat of a chronic inflam-mation which by continuity involves the peridental membrane and the alveolar marks the beginning of pocket formation. a, a, elongated epithelial projections; b,connective-tissue stroma. are also to be seen. The infection spreads slowly as a generalrule, and. involving the fibers of the peridental membrane and thealveolar process, initiates the progressive process of destructionin the supporting tissues of the tooth (Figs. 320-325). The pus 594 DENTAL PATHOLOGY pocket is the result of the destruction of the peridental fibersand of the alveolar process. The proteolytic toxins formed inthe course of the inflammatory process liquefy the peridentalfibers. The pathologic phenomena which develop in the bone of thealveolar process in pocket formation are characteristic of an. // Fig. 318.—Chronic inflammation of gingiva. The epithelial prolongations in the sub-jacent connective tissue elongate as the result of the continued low degree of connective-tissue stroma has lost its characteristic appearance and the cells and fiberswhich were present under normal conditions have been replaced by inflammatory cells;i. e., mononuclear wandering cells comprising mononuclear leucocytes, lymphocytes, andplasma cells and polymorphonuclear leucocytes in small numbers, a, a, elongated epithelialprojections; b, b, round cell infiltration. Mast cells are also to be located under thehigher magnifications. infectious osteomyelitis. The medullary substance contained inthe cancellated spaces becomes the seat of a chronic inflamma-tion in which osteoclasts play an active part. The hard sub-stance of the bone disappears through osteo
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectpathology, bookyear19
