. The science and practice of dental surgery. Fio. 407.—Longitudinal section of fibroid degeneration of the pulp. D, Dentine; P, Pulp. X 45. and every vestige of nerve bundle and vascularsystem. The condition may be considered to be anatural old-age termination of the life of ahealthy pulp, dependent not upon the age of its possessor, but on the constitutional lesionsalready noted. In complete fibrosis no tracesof cellular organization of cell nuclei, or inter-stitial cementing substance, can be found any-where. Nerve fasciculi, odontoblasts, pulp. Fig. 408.—Transverse section of fibroid degen
. The science and practice of dental surgery. Fio. 407.—Longitudinal section of fibroid degeneration of the pulp. D, Dentine; P, Pulp. X 45. and every vestige of nerve bundle and vascularsystem. The condition may be considered to be anatural old-age termination of the life of ahealthy pulp, dependent not upon the age of its possessor, but on the constitutional lesionsalready noted. In complete fibrosis no tracesof cellular organization of cell nuclei, or inter-stitial cementing substance, can be found any-where. Nerve fasciculi, odontoblasts, pulp. Fig. 408.—Transverse section of fibroid degeneration of the pulp. D, Dentine. X 45. cells, blood vessels, equally share the processof fibrification, and are no longer recognizableunder the microscope. But the connectivetissue stroma, which is merely a loose net\vorkin normal circumstances, has either becomegrossly hyperplasic or quite obliterated, andits place occupied by a new firm fibrous struc-ture devoid of cells, nuclei, or any regulararrangement of the constituent parts. Largealveolar spaces (areolae) appear; rows of longthick fibres of various shapes and sizes, somebifurcated, others plain, others possessingfibrous offshoots, are visible; the odontoblastsare .sheaved at first, and then reduced tothin fibrous cords or bundles of fibres. Theareolae at times may measure from 220 ^ x 160 /xto X 10 /i 5 /x, and abound in the central portionsof the pulp in the \acinity of the blood vesselsand nervous systems. The basal layer of WeUand the odontoblasts themselves are the lastto unde
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdentistry, bookyear19
