Principles and practice of operative dentistry . animals, like the elephant. These formations are the result of long-con-tinued or chronic irritation. As its name implies, it is a form of secondarygrowths which combine the elements of both dentin and bone, or, morecorrectly, of cementum (Fig. 499). It is developed, according to Salter,by the general conversion and intrinsic calcification of the several tissuesof the pulp. It- is usually vascular, frequently arranged in systems aroundvessels, like the Haversian systems of bone, and it sometimes has truelacunge. It has fewer dentinal tubules tha
Principles and practice of operative dentistry . animals, like the elephant. These formations are the result of long-con-tinued or chronic irritation. As its name implies, it is a form of secondarygrowths which combine the elements of both dentin and bone, or, morecorrectly, of cementum (Fig. 499). It is developed, according to Salter,by the general conversion and intrinsic calcification of the several tissuesof the pulp. It- is usually vascular, frequently arranged in systems aroundvessels, like the Haversian systems of bone, and it sometimes has truelacunge. It has fewer dentinal tubules than any other form of dentin, andis usually very transparent. It is made up of various calcification islandsor systems of secondary dentin, which are finally fused together and ad-herent to the primary dentin (Fig. 500). The mass may contain anynumber of Haversian systems and numerous true bone lacunae, especiallyresembling those found in the cementum. These masses of osteodentin are found in teeth which show marked DISEASES AND INJURIES OF THE D
Size: 1298px × 1925px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectdentist, bookyear1920
