. Dental materia medica and therapeutics; with special reference to the rational application of remedial measures to dental diseases ... of the apex. Nothingis more dreaded by the patient than this first puncture. A fine,very sharp-pointed needle causes very little pain, and the sim-ple compression of the gum tissue with the finger tip is oftenquite effective. The pain may be entirely obviated by holdinga pledget of cotton saturated with the prepared anesthetic solu-tion on the gum tissue for a few moments, or by applying a TECHNIQUE OF THE INJECTION. 477 very small drop of liquid phenol on th
. Dental materia medica and therapeutics; with special reference to the rational application of remedial measures to dental diseases ... of the apex. Nothingis more dreaded by the patient than this first puncture. A fine,very sharp-pointed needle causes very little pain, and the sim-ple compression of the gum tissue with the finger tip is oftenquite effective. The pain may be entirely obviated by holdinga pledget of cotton saturated with the prepared anesthetic solu-tion on the gum tissue for a few moments, or by applying a TECHNIQUE OF THE INJECTION. 477 very small drop of liquid phenol on the point of puncture. Theneedle opening faces the bone, the syringe is held in the righthand at an acute angle with the long axis of the tooth, while theleft hand holds the lip and cheek out of the way. After punctur-ing the mucosa, a drop of the liquid is at once deposited in tlietissue, and the further injection is painless. Slowly and steadilythe needle is forced through the gum tissue and periosteum alongthe alveolar bone toward the apex of the tooth, depositing thefluid under pressure close to the bone on its upward and return. Figure of Needle for Injecting About an Upper Central Incisor. trip—Vinjection tracante et continue, as Reclus calls it. Thecontinuous slow moving of the needle prevents injecting into avein. A second injection may be made by partially withdrawingthe needle from the puncture and swinging the syringe anteriorlyor posteriorly, as the case may be, from the first route of theinjection. This latter method is especially indicated in inject-ing the upper molars. After removing the needle, place the fingertip over the puncture and slightly massage the injected area. Acircular elevation outlines the injected field. The naturally pinkcolor of the gum will shortly change to a white anemic hue, in-dicating the physiologic action of the adrenalin on the circula- 478 LOCAL ANESTHESIA. tion. No wheal should be raised by the fluid, as that would in-dic
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherstlou, bookyear1913
