Principles and practice of operative dentistry . ^ -:tr f/. wm 7 1 wi Uc /? n v? ^ Fig. 196.—Longitudinal section of root of tooth in situ, showing relation of the tissues and Sharpeysfibres in the alveolar process. (F. B. Noyes.) 2), dentin ; N, Nasmyths membrane ; C, C, cementum ; F,fibres supporting gingivus ; F1, fibres joining the outer layer of periosteum over the alveolar process(Sharpeys fibres) ; F-, fibres running from cementum to bone ; B, bone or alveolar process. 1 Turning under ofthe base of theenamel-organ. Fig. 197.—Vertical section of a dental follicle, showing the blood-vesse
Principles and practice of operative dentistry . ^ -:tr f/. wm 7 1 wi Uc /? n v? ^ Fig. 196.—Longitudinal section of root of tooth in situ, showing relation of the tissues and Sharpeysfibres in the alveolar process. (F. B. Noyes.) 2), dentin ; N, Nasmyths membrane ; C, C, cementum ; F,fibres supporting gingivus ; F1, fibres joining the outer layer of periosteum over the alveolar process(Sharpeys fibres) ; F-, fibres running from cementum to bone ; B, bone or alveolar process. 1 Turning under ofthe base of theenamel-organ. Fig. 197.—Vertical section of a dental follicle, showing the blood-vessels and nerves entering at the base of the follicleand a peculiar turning under of the enamei-organ at the base of the dental papillae. (V. A. Latham.) X 96. Eb E E E Ik ^n CbC n Fig. 198.—Section of pericementum in situ, showing epithelial bodies. (F. B. Noyes.) X 408. D, dentin ; C, cementum;Cb, cementoblasts ; Fb, fibroblasts ; E, E, E, epithelial structures. HISTOLOGY OF THE DENTAL TISSUES. 57 vessels and nerves. It is in reality periosteum, slightly modified to adaptit to its environment and special functions. The peridental membrane is derived from the sacculus of the dentalfollicle. It is continuous with the periosteum of the alveolar process, andappears to he a reflection of this membrane, to line the walls of the alveoliand invest the root of the tooth. Fig. 193 shows the membrane at anearly developmental period dipping in between the forming roots of thetooth of a field-mouse. The dental sacculus is c
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectdentist, bookyear1901
