Principles and practice of operative dentistry . he 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
Principles and practice of operative dentistry . he 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 DENTAL PULP. 451 evidences of a former resorption of dentin, and although in many casesthe tissues increased in amount, a considerable portion was found to occupy Fig. Section of osteodentin. (After Salter.) the situation of the normal dentin which had been removed by the pro-cess of resorption. Bodecker* has also described this form of new growth as secondarydentin with forms analogous to Haversian systems. Fig. 500.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectdentist, bookyear1920
