. Interpretation of dental and maxillary roentgenograms . Fig. 16.—Case of long-btamling periai->ical inflammation,preponderance of fibrous tissue. showing fewer cells and. Fig. 17.—Mass of squamous epithelial cells (debris epitheliaux paradentaircs)bedded in chronic periapical inflammatory tissue. 42 INTEEPEETATIOISr OF EOENTGENOGRAMS thus depriving the latter of its blood supply, and con-verting it into a necrotic foreign body. Coincident with the chronic abscess or granuloma for-mation, rarefaction and absorption of the necrotic cemen-tum of the root apex takes place by the action of end
. Interpretation of dental and maxillary roentgenograms . Fig. 16.—Case of long-btamling periai->ical inflammation,preponderance of fibrous tissue. showing fewer cells and. Fig. 17.—Mass of squamous epithelial cells (debris epitheliaux paradentaircs)bedded in chronic periapical inflammatory tissue. 42 INTEEPEETATIOISr OF EOENTGENOGRAMS thus depriving the latter of its blood supply, and con-verting it into a necrotic foreign body. Coincident with the chronic abscess or granuloma for-mation, rarefaction and absorption of the necrotic cemen-tum of the root apex takes place by the action of endo-thelial leucocytes and foreign-body giant cells. This isusually accompanied by the production of new cementumby cementoblasts that have not been destroyed, formingirregular thickenings of the root. Sometimes this hyper-cementosis is the principal lesion found. The contents of the spaces produced hy periapical boneabsorption, including bacteria and their products, havedirect connection ivith the general circulation throughcapillary blood vessels and lymphatics in the ivalls of thecavities and running in all directions through the granu-lation tissue. While the outer
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectradiographydental
