A text-book of dental histology and embryology, including laboratory directions . Hh— c The structural requirements for a strong enamel wall: AB, the bevel of thecavosurface angle. The rods forming the margin of the cavity at B reach thedentine at E, and are supported by the portion ABE. considered no stronger after the filling is inserted than itwas before. Moreover, when the dentine has been decalcifiedor destroyed by the action of caries, the acid which hasdecalcified the dentine has also acted upon the enamel, dis-solving the cementing substance from between the rods, from ENAMEL MUST REST
A text-book of dental histology and embryology, including laboratory directions . Hh— c The structural requirements for a strong enamel wall: AB, the bevel of thecavosurface angle. The rods forming the margin of the cavity at B reach thedentine at E, and are supported by the portion ABE. considered no stronger after the filling is inserted than itwas before. Moreover, when the dentine has been decalcifiedor destroyed by the action of caries, the acid which hasdecalcified the dentine has also acted upon the enamel, dis-solving the cementing substance from between the rods, from ENAMEL MUST REST UPON SOUND DENTINE 83 within outward, often to a great extent, and the structureis very imperfect. Enamel that has been so weakened willnot withstand the force of mastication, and sooner or laterwill crack or break away from the filling material. Itshould be removed and the wall formed in tissue whosestructure is perfect. Occasionally cases arise where an Fig. 45 c I.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectteeth, bookyear1912
