. The science and practice of dental surgery. nd theshrinkage that follows it, lead to a \\ideningof the guigival margin and general enlarge-ment of the pockets, with hyperplasia of the peri-odontal membrane. If a pathogenic infectiontakes place, pyogenic bacteria invade and settledown in these pockets, and pyorrhoea results. Food and other foreign materialscollect in the enlarged pockets and lead to theformation of pus. They may possibly set up asuppurative gingivitis, with the productionof tartar. Histologically there seems to be somechange in the oral epithelium at aU points, espe-cially at
. The science and practice of dental surgery. nd theshrinkage that follows it, lead to a \\ideningof the guigival margin and general enlarge-ment of the pockets, with hyperplasia of the peri-odontal membrane. If a pathogenic infectiontakes place, pyogenic bacteria invade and settledown in these pockets, and pyorrhoea results. Food and other foreign materialscollect in the enlarged pockets and lead to theformation of pus. They may possibly set up asuppurative gingivitis, with the productionof tartar. Histologically there seems to be somechange in the oral epithelium at aU points, espe-cially at the periphery, where it has been lost bydesquamation. The gum has become inflamed. and the cementum is somewhat enough its peripheral portions areremarkably smooth and well defined, .seldomexhibiting the foveolae of Howship occupied bylarge mycoplaxes, except the cementum at theapices. If it is at aU hyperplasic, it is accidentaland not a result of pyorrhoea . Sharpeysfibres and their canals show no signs of bacterial.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdentistry, bookyear19
