. Regional anesthesia : its technic and clinical application . I 1 ^^/ Fig. 83.—Mental block by the oral Fig. 84.—Mental block b> the extra oral route Note the direction of the needle. BLOCKING OF CRANIAL NER\rES III introduced through a wheal raised midway between the gingival marginand the lower margin of the mandible, at a point 4 cm. lateral to themidline of the chin. It is directed frontward, inward, and downward,and advanced close to the bone and along its axis until its point is

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Keywords: ., bookcentury1900, bookdecade1920, bookidregionalanes, bookyear1922