Oral surgery; a text-book on general surgery and medicine as applied to dentistry . cceeding injectionsthe proportion of alcohol is increased so that if several areneeded for the same branch, the strength of the solution reaches about 90 per cent. Forreaching the different branchesof the nerve the procedure isas follows: (Figure 176.) For the inferior branchthe needle is inserted at thelower border of the zygoma in front of the descendingroot of the zygoma, which al-ways can be felt, and almostcoincides with the anteriorbony border of the externalauditory meatus. The needleis directed s
Oral surgery; a text-book on general surgery and medicine as applied to dentistry . cceeding injectionsthe proportion of alcohol is increased so that if several areneeded for the same branch, the strength of the solution reaches about 90 per cent. Forreaching the different branchesof the nerve the procedure isas follows: (Figure 176.) For the inferior branchthe needle is inserted at thelower border of the zygoma in front of the descendingroot of the zygoma, which al-ways can be felt, and almostcoincides with the anteriorbony border of the externalauditory meatus. The needleis directed slightly upward,so as to hug the base of theskull, and a little backward,and at a depth of 4 cm. shouldZfirit *«rd LSthTrf di! reach the nerve at its exit from the cranium. To attain the middlebranch, the line of the posterior border of the ascending(orbital) process of the malar bone (ascending to articulatewith the frontal) is prolonged to the lower border of thezygoma and the needle inserted .5 cm. posterior to thispoint. It is directed vertically to the anteroposterior line,. Fig. 176.—Deep Injections forNeuralgia. Showing the coursethe needles take under the zygo visions of the fifth nerve at theforamina rotundum and ovale. TREATMENT 359 but inclined slightly upward in a direction which wouldattain, at the depth of the foramen rotundum, the level ofthe inferior extremity of the nasal bones. At a depthof 5 cm. the nerve is reached at its emergence from theforamen rotundum into the pterygomaxillary fossa. Levy and Baudouin advise reaching the supraorbitalbranch by inserting the needle at the external margin of theorbit opposite the frontomalar articulation (suture), pass-ing it along the external orbital wall to a depth of to 4cm., when the point should reach the nerve. This injectionDr. Patrick has made but once. Superficial Injections.—Before major operations areperformed it is advisable to inject alcohol into the nervesat their points of exit from the anterior sur
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectsurgery, bookyear1912
