Diseases of the soft structures of the teeth and their treatment; a text-book for students and practitioners . Place the twopoles of the battery about 1 inch apart on the wet paper and turnon the current. In a few moments a pink spot will develop wherethe positive pole touches the paper. The two electrodes are terminals attached for the purpose ofconveying the current to the patient, and consist of a negativeelectrode which is to be placed on the patients skin surface, anda positive electrode to be introduced into the tooth. The negativeelectrode may be a piece of metallic tubing held firmly i
Diseases of the soft structures of the teeth and their treatment; a text-book for students and practitioners . Place the twopoles of the battery about 1 inch apart on the wet paper and turnon the current. In a few moments a pink spot will develop wherethe positive pole touches the paper. The two electrodes are terminals attached for the purpose ofconveying the current to the patient, and consist of a negativeelectrode which is to be placed on the patients skin surface, anda positive electrode to be introduced into the tooth. The negativeelectrode may be a piece of metallic tubing held firmly in thepatients hand, or a sponge electrode fastened to his wrist, or oneof various modifications thereof. The size of the negative handelectrode is important; it should present at least five square inches 208 mrfa DISB \J3ES OP Till-: DENTAL Pi pface ;in;1 which are to be brought into contact with the large surface of the negative electrode reduces the resistance, andconsequently the tingling sensation or even blistering caused bythe hen of a small electrode is avoided. The writer prefers the. l n; Metal oegath\ mere contact may occur. To place the negative electrode NECROSIS AND GANGRENE OF THE DENTAL PULP 209 upon the patients cheek, lip or gum surface by means of a clampor spring, as recommended by some operators, is to be avoided, forthe reason that severe burns may result. It has been stated thatthis blistering results from the formation of caustic sodium hydroxid
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Keywords: ., bookcentury1900, bookdecade1920, bookiddiseasesofso, bookyear1922
