. Periodontal disease and its treatment by ionic medication . ival trough,from which bleeding readily occurs on pressure. A processof breaking down of the gingival fold, the alveolar bone andsuperficial fibers of periodontal tissue is established, andalthough no pus is present, pathogenic organisms inhabitthe tissues, which are in a condition to facilitate their growthand maintenance. Examination of the necks of the teeth will invariablydisclose irritants in the form of calcareous deposits andstagnant food. Treatment consists in thorough instrumenta- 68 TREATMENT OF PERIODONTAL DISEASE tion, r
. Periodontal disease and its treatment by ionic medication . ival trough,from which bleeding readily occurs on pressure. A processof breaking down of the gingival fold, the alveolar bone andsuperficial fibers of periodontal tissue is established, andalthough no pus is present, pathogenic organisms inhabitthe tissues, which are in a condition to facilitate their growthand maintenance. Examination of the necks of the teeth will invariablydisclose irritants in the form of calcareous deposits andstagnant food. Treatment consists in thorough instrumenta- 68 TREATMENT OF PERIODONTAL DISEASE tion, removing every particle of foreign substance and polish-ing the surfaces of the teeth. Bleeding and tenderness ofthe gums will often interfere with accomplishing this endsatisfactorily at the first operation, but ionization shouldbe carried out then, and the case seen again in a few days,when invariably marked improvement will be noted, andthe completion of instrumentation and polishing facilitated,Ionization with zinc ions should be carried out by passing a. Fig. 21.—Progressing periodontal disease. spear-shaped zinc electrode of large enough size to readily passinto the gingival trough and wound at the point with a fewshreds of cotton-wool saturated with 3 per cent, zinc chloride,the electrode should be steadily held in position, the patientholding the indifferent electrode. The current from thepositive pole should then be turned on gradually, with theobject of passing 2 or 3 ma. at least, if this amount can betolerated. The electrode should be moved very slowly, inperfect contact around the necks of the teeth with a wiping INFECTION OF THE PERIODONTAL MEMBRANE 69 motion, taking about half a minute to pass from interspaceto interspace on the outer surface of each tooth, but herediscretion must be exercised—parts obviously worse requiremore time at the expense of parts less affected. The salivashould be kept away with cotton swabs, and the zinc chloridereplenished from time
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