General and dental pathology with special reference to etiology and pathologic anatomy; a treatise for students and practitioners . ubgingival Fig. 312.—Subgingivaleral incisor with its root deposits in upper right lat- deposits in upper right dis-covered with subgingival eral incisor, distal view. over half of itslength. the result of an abnormal degree of irritation of the gingivaltissues (Figs. 310-316). The irritation is afforded by the de-composition of food debris and mucin at the necks of the teeth,by ragged or rough edges of fillings, poorly adapted gold crowns,or from any
General and dental pathology with special reference to etiology and pathologic anatomy; a treatise for students and practitioners . ubgingival Fig. 312.—Subgingivaleral incisor with its root deposits in upper right lat- deposits in upper right dis-covered with subgingival eral incisor, distal view. over half of itslength. the result of an abnormal degree of irritation of the gingivaltissues (Figs. 310-316). The irritation is afforded by the de-composition of food debris and mucin at the necks of the teeth,by ragged or rough edges of fillings, poorly adapted gold crowns,or from any other form of prosthetic appliance or defective res-toration leaving a rough edge at the neck of the tooth whichcontinually irritates the gingiva. Any form of injury to the gin-giva may become the etiologic factor in the deposition of subgin- 390 SUBGINGIVAL DEPOSITS 391 gival deposits. Gingival irritation is not, however, by any meansentirely due to defective crowns or fillings, but may be broughlabout by defective or insufficient contact points leading to foodimpactions in the interproximal spaces, with concomitant irri-.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectpathology, bookyear19
