. The science and practice of dental surgery. ucing at timesvarious forms of dyscrasia in the latter. 2. Local— (a) Apparent-—Effects of Dental Caries.—Theaction of micro-organisms on Nasmyths mem-brane and the enamel—no matter whether theybe liquefying or non-liquefying—produces prob-ably no direct effect on the pulp; there are noevidences to show it. When the outer zone ofdentine is reached, however, and the micro-organisms are able easily to penetrate its depth,on account of its tubularity, changes at onceoriginate. Tlie first phases of the plienomena associatedwith breach of surface are co
. The science and practice of dental surgery. ucing at timesvarious forms of dyscrasia in the latter. 2. Local— (a) Apparent-—Effects of Dental Caries.—Theaction of micro-organisms on Nasmyths mem-brane and the enamel—no matter whether theybe liquefying or non-liquefying—produces prob-ably no direct effect on the pulp; there are noevidences to show it. When the outer zone ofdentine is reached, however, and the micro-organisms are able easily to penetrate its depth,on account of its tubularity, changes at onceoriginate. Tlie first phases of the plienomena associatedwith breach of surface are concomitant withcellular activity; and a barrier to the bacterialincursions, composed of adventitious dentineconveniently classified as areolar, cellular, fibril-lar, hyaline, and laminar (10), is thrown up onthe pulp side as a rampart. But the con-structive do not proceed pari passu witli the less rapidly accomplished, and an entrance tothe pulp cavity is effected, in spite of the loweredphysiological resistance, and in spite of the.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdentistry, bookyear19
