Diseases of the soft structures of the teeth and their treatment; a text-book for students and practitioners . of the intense caustic action it may be stated that inthe hands of some practitioners the Buckley desensitizing pasteconstitutes the routine application for the purpose of destroyingthe pulps in deciduous teeth. The same deleterious results areobtained with the so-called Norwegian Dentin Anesthetic. This7 OS DISEASES OF THE l>i:\ TAL PULP compound contains carpain and paucin, two alkaloids which acisomewhat like erj throphlein, L they kill the pulp. Occasionally protoplasm pois
Diseases of the soft structures of the teeth and their treatment; a text-book for students and practitioners . of the intense caustic action it may be stated that inthe hands of some practitioners the Buckley desensitizing pasteconstitutes the routine application for the purpose of destroyingthe pulps in deciduous teeth. The same deleterious results areobtained with the so-called Norwegian Dentin Anesthetic. This7 OS DISEASES OF THE l>i:\ TAL PULP compound contains carpain and paucin, two alkaloids which acisomewhat like erj throphlein, L they kill the pulp. Occasionally protoplasm poisons arc recommended for the pur-pose of desensitizing dentin. In many instances these drugs arcerroneously referred to as caustics. A protoplasm pe designated as ;i drug which endangers, or even kills, living-cellstructure without visible changes. Protoplasm poisons are not self-limiting in their action. Arsenic trioxid and, to a less extent,the alkaloids ncr\ ocidin, erythrophlcin and paucin are the principalsubstances of this group that have been employed as desensitizing Denti. Odontoblasts Nerve bundles I ... Section of a tooth treated with Buckleys desensitiring paste. Pulp showsextensive necrotic areas Dear point of application. 11 temisch. I agents. Arsenic, when applied even in the very minutest quan-tities, will usually always kill the pulp, as its action cannot becontrolled. This is equally true of the above named alkaloids; theyhave only historical interest at present. Local Anesthetics mid Sedatives. True local anesthetics, i. *..cocain or its substitutes when applied t exposed sound dentinwithout pressure do not produce any pharmacologic effects. Even ifsealed into ;i Fairly deep-seated cavity in which the underlyingdentin i> not decalcified, no effect is obtained. Living protoplasmreacts unfavorably against the ready absorption of substances i»\endosmosis for two reasons: l ! I The albumin molecule i^ rela- HYPERSENSITIVE DENTIN 99 tively very large and i
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Keywords: ., bookcentury1900, bookdecade1920, bookiddiseasesofso, bookyear1922
