A text-book of dental histology and embryology, including laboratory directions . Enamel showing both striation and stratification. (About 80 X)Fig. 24. Enamel showing striation. (About 1000 X) 60 CHARACTERISTICS OF THE ENAMEL TISSUE Imperfections in the cementing substance render thestriation more apparent because they increase the differencein refraction between the two substances. The action ofacid either upon isolated rods or upon sections rendersstriation more apparent because it attacks the cementingsubstance faster than the globules forming the rods, andtherefore increases the refractio
A text-book of dental histology and embryology, including laboratory directions . Enamel showing both striation and stratification. (About 80 X)Fig. 24. Enamel showing striation. (About 1000 X) 60 CHARACTERISTICS OF THE ENAMEL TISSUE Imperfections in the cementing substance render thestriation more apparent because they increase the differencein refraction between the two substances. The action ofacid either upon isolated rods or upon sections rendersstriation more apparent because it attacks the cementingsubstance faster than the globules forming the rods, andtherefore increases the refraction. Von Beber has claimedthat the appearance of striation was caused by the action ofacid on the section, and that even in mounting in balsamthe acidity of the balsam affected the tissue. It is true thatany action of acid increases the distinctness of the cross-striation, but it is not the cause of it. Stratification, or the Bands of Retzius.—If longitudinalsections of moderate thickness are observed with the lowpower, brownish bands are seen running through the enamel,which suggests the appearance of stratification in were first des
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectteeth, bookyear1912
