A text-book of dental histology and embryology, including laboratory directions . roximal gingivus is well shown. The fibers springingfrom the cementum interlace and pass around bloodvesselsand fibers which are passing up into the gingivus, and finally19 290 THE PERIDENTAL MEMBRANE are inserted into the cementum of the next tooth. In thisway it will be seen that the teeth in the entire arch are firmlybound together by the fibers in the gingival portion. This Fig. 223 V H^k^l M *^t:? mi1 \ s^ , *H Hi -;m 1 * ^HEk > ^^^^^Ste^* Transverse section of the peridental membrane in the gingival port
A text-book of dental histology and embryology, including laboratory directions . roximal gingivus is well shown. The fibers springingfrom the cementum interlace and pass around bloodvesselsand fibers which are passing up into the gingivus, and finally19 290 THE PERIDENTAL MEMBRANE are inserted into the cementum of the next tooth. In thisway it will be seen that the teeth in the entire arch are firmlybound together by the fibers in the gingival portion. This Fig. 223 V H^k^l M *^t:? mi1 \ s^ , *H Hi -;m 1 * ^HEk > ^^^^^Ste^* Transverse section of the peridental membrane in the gingival portion (fromsheep): E, epithelium; F, fibrous tissue of gum; B, point where peridental mem-brane fibers are lost in fibrous mat of the gum; P, pulp; F, fibers extending fromtooth to tooth. (About 30 X) explains the way in which the positions of all the teeth areaffected by the loss of a single one in the arch, and the wayin which the movement of one tooth will draw its neighborsafter it. It also explains the separation of the central PLATE XIV M. Per Al Pd -Al :Gn ?AlP ?I) Cm. Pd Al Transverse Section of the Peridental Membrane in theOcclusal Third of the Alveolar Portion (from Sheep). M, muscle fibers; Per, periosteum; Al, bone of the alveolar process; Pel, peri-dental membrane fibers; P, pulp; D, dentine; Cm, eementum. ARRANGEMENT 291 incisors when the frenum labium passes through between theteeth, and is inserted on the lingual surface of the alveolarprocess. If these incisors are to be held together perma-nently, normal attachment of fibers * extending from thecementum of one tooth to that of the other must be fibers in this area are also well shown in Fig. 224, and Fig. 224 - ,• iA% • >, . lit-- v*«» . i : *>j.,.- -?- ?,. $?. ^] ?> .V^>. - ,-. lip ? ;• ;\^ ~y^ ,,t • • . ?• ,. ** .•> j .,-. , /? A portion of the peridental membrane between two incisors of a young sheep,showing the fibers extending from tooth to tooth. it can be und
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectteeth, bookyear1912
