. Regional anesthesia : its technic and clinical application . (page 57) may be followed: the needle is introduced lateral tothe angle of the mouth, at the level of the second upper molar toothand directed backward, inward, and upward, passing beneath themucous membrane of the cheek, between the ascending ramus and thetuberosity of the maxilla (Fig. 66). When facing the patient theneedle is directed toward the pupil of the eye on the same side, andwhen looking laterally, it aims at the midpoint of the zygoma on thesame side. As soon as paresthesias are obtained in the territory of thelower jaw
. Regional anesthesia : its technic and clinical application . (page 57) may be followed: the needle is introduced lateral tothe angle of the mouth, at the level of the second upper molar toothand directed backward, inward, and upward, passing beneath themucous membrane of the cheek, between the ascending ramus and thetuberosity of the maxilla (Fig. 66). When facing the patient theneedle is directed toward the pupil of the eye on the same side, andwhen looking laterally, it aims at the midpoint of the zygoma on thesame side. As soon as paresthesias are obtained in the territory of thelower jaw 2 of the 2 per cent, solution are injected without trj-ing BLOCKING OF NERVES 95 to reach or pass through the foramen ovale. Sometimes radiationsare obtained in the ear. This is sufficient to warrant the injectionwithout going any further, when surgical anesthesia is contemplated;but in the treatment of trifacial neuralgia the mandibular nerve itselfshould be injected at its exit from the foramen ovale. Auriculotemporal N. Deep temporal Ns.^. Buccinator N.
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