Principles and practice of operative dentistry . Formeddentin Fig. 140.—Section of develo]:)ing- human molar, showing the relations of the various structures. (V. A. Latham.) X 1000. Formed dentin Odontoblasts Stratumintermedium Ameloblasts. Pulp Fig. 141.—Section of developing human tooth, showing ameloblasts highly magnified. (Zeiss one-twelfth oU immersion.) 44 OPERATIVE DENTISTRY. of ameloblasts, and another between this 4ayer of ameloblasts and thestratum intermedium, the formation and character of which has not beendemonstrated (Fig. 143). WilHams has designated these layers by the terms
Principles and practice of operative dentistry . Formeddentin Fig. 140.—Section of develo]:)ing- human molar, showing the relations of the various structures. (V. A. Latham.) X 1000. Formed dentin Odontoblasts Stratumintermedium Ameloblasts. Pulp Fig. 141.—Section of developing human tooth, showing ameloblasts highly magnified. (Zeiss one-twelfth oU immersion.) 44 OPERATIVE DENTISTRY. of ameloblasts, and another between this 4ayer of ameloblasts and thestratum intermedium, the formation and character of which has not beendemonstrated (Fig. 143). WilHams has designated these layers by the terms inner and outer amelo-blastic membranes, and describes them as being composed of a finely fibrousstructure. The inner layer or membrane is particularly interesting from thefact that it seems to be composed of two sets of fibres running in nearlyopposite directions, but neither direction corresponding with the long axisof the ameloblasts. One set of these fibres passes in a somewhat more oblique course than theothers, and becomes confluent with the ends of the enamel-prisms, while theother set sweeps downward in a circular course, crossing the more oblique-running fibres and the enamel-prisms nearly at right angles. Mummery hasbeau
Size: 1558px × 1604px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectdentist, bookyear1920
