. The science and practice of dental surgery. ^ ^^^ A, Fig. 567.—Vertical section tlxrough canine and rightmaxilla o£ man, aged twenty-eight, showing lateststages o£ extremely acute condition associated with pyorrhoea alveolaris . X 35. Apex o{ root formed by hyperplasic cementum;B, Hyperplasic periodontal membrane ; C, Sequestrumof bone; D, Osteoclasts producing laoimal absorptionof bone of socket. (A. Hopewell-Smith : DentalCosmos.) invasion. Senimal calculus may or may not bepresent, but is not sufficient in itself to inducethe condition (20). J. F. Colyer says that the initial stage ischar
. The science and practice of dental surgery. ^ ^^^ A, Fig. 567.—Vertical section tlxrough canine and rightmaxilla o£ man, aged twenty-eight, showing lateststages o£ extremely acute condition associated with pyorrhoea alveolaris . X 35. Apex o{ root formed by hyperplasic cementum;B, Hyperplasic periodontal membrane ; C, Sequestrumof bone; D, Osteoclasts producing laoimal absorptionof bone of socket. (A. Hopewell-Smith : DentalCosmos.) invasion. Senimal calculus may or may not bepresent, but is not sufficient in itself to inducethe condition (20). J. F. Colyer says that the initial stage ischaracterized by the formation of a stagnationarea in the normal sj)ace around the neck of thetooth. Infection with pathogenic organismsrapidly follows, for even in the early stagesorganisms are present, that are known to beassociated with chronic forms of disease inother parts of the body. The stagnation areais a septic focus, and destruction of the 506 attachment of the muco-periosteum of the toothfollows. By this process the pockets are m
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdentistry, bookyear19
