Dental cosmos . wa-rn. Fig. 4.—Enamel-organ from the cuspid of a young cat. D, dentine ; S, undeveloped enamel;T, Tomess process of the enamel-cells; SEi, internal enamel epithelium ; , stratum inter-medium; , enamel-pulp. Zeiss Apochrom. comp. ocular. 4. 625 diam. Mahrenthalsmethod (pyroligneous acid). deeply black by osmic acid. The inner enamel-epithelium is formedof one layer of high columnar cells. From the beginning up to theend of the formation of the enamel, it is the same cells which have thefunction of depositing that hard substance. Notwithstanding a mostcareful investi
Dental cosmos . wa-rn. Fig. 4.—Enamel-organ from the cuspid of a young cat. D, dentine ; S, undeveloped enamel;T, Tomess process of the enamel-cells; SEi, internal enamel epithelium ; , stratum inter-medium; , enamel-pulp. Zeiss Apochrom. comp. ocular. 4. 625 diam. Mahrenthalsmethod (pyroligneous acid). deeply black by osmic acid. The inner enamel-epithelium is formedof one layer of high columnar cells. From the beginning up to theend of the formation of the enamel, it is the same cells which have thefunction of depositing that hard substance. Notwithstanding a mostcareful investigation, I have not succeeded in discovering the so-calledreserve cells described by Waldeyer and others. Those authors weredoubtless deceived by sections oblique and not sufficiently thin. Count Spee proved first that the young enamel is stained black byosmic acid ; also in the enamel-cells there are found, after treatmentwith osmic acid, here and there a few black globules, which must be ii94 THE DENTAL COSMOS. rega
Size: 2603px × 960px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthor, bookcentury1800, bookdecade1890, booksubjectdentistry
