. The Dental cosmos. nfilled, and that it deviated distally toclose approximation with the right lat-eral incisor. The skiagraph furthershowed that the fistula did not passthrough the mandible, but that it hadprogressed in the line of least resistanceto the soft tissues, and favored by root apex being situated below theattachment of the genio-hyoid muscle,the pus had found an exit through theskin below the chin. Operation. Careful prophylactic treat-ment having been instituted at a previous sitting, the case was ready for surgi-cal treatment. Tincture of iodin waspainted over the g
. The Dental cosmos. nfilled, and that it deviated distally toclose approximation with the right lat-eral incisor. The skiagraph furthershowed that the fistula did not passthrough the mandible, but that it hadprogressed in the line of least resistanceto the soft tissues, and favored by root apex being situated below theattachment of the genio-hyoid muscle,the pus had found an exit through theskin below the chin. Operation. Careful prophylactic treat-ment having been instituted at a previous sitting, the case was ready for surgi-cal treatment. Tincture of iodin waspainted over the gum for the sterilizationof the part prior to the introduction ofthe hypodermic needle. Local anesthesiawas produced by the injection of aboutfifteen drops of a one per cent, solutionof cocain hydrochlorid and adrenalinchlorid. This was freshly prepared bydropping two one-sixth grain pellets ofcocain which contained one three-hun-dredth of a grain each of adrenalin intothirty-four drops of distilled water, the Fig. After operation. quantity of the alkaloid injected not ex-ceeding one-sixth of a grain. When the part was well anesthetized,an incision was made with a lancet overthe apical third of the root, being carefulto avoid the frenum labii, and cuttingfreely to the bone. Another incision wasthen made, bisecting the first in the formof the letter X. The tissues were thenpressed apart to admit a bur, and a No. 2Schamberg bone-bur, driven by the en-gine, was passed between the central andlateral, and the root excised. The rootwas found to be smoothly dressed, andthe excised portion was removed with aWatling spoon excavator. The necrosedsinus walls were then carefully curettedwith the same instrument, and the cavityirrigated with hydrogen dioxid to removeall root-cuttings, as well as pus and otherdebris. The operation on the bone was thentemporarily abandoned, and the abscess NATIONAL DENTAL ASSOCIATION. 451 below the chin was opened. Gentle pres-sure was then applied to the
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdentist, bookyear1912
