. Regional anesthesia : its technic and clinical application . Fig. -Cross-section through the faucial pillars and tonsils, showing the directionof the needle, N. the faucial tonsils are injected in the manner already described. Theapplicators are renewed if necessary. Painting the palate and naso-pharynx with a 10 per cent, cocain solution minimizes the discomfortof the patient; but the drug should be used cautiously, as previouslystated. DENTAL OPERATIONS Teeth extractions, with or without preliminary external alveolectomy,and all other dental operations are best performed by nerve-blo
. Regional anesthesia : its technic and clinical application . Fig. -Cross-section through the faucial pillars and tonsils, showing the directionof the needle, N. the faucial tonsils are injected in the manner already described. Theapplicators are renewed if necessary. Painting the palate and naso-pharynx with a 10 per cent, cocain solution minimizes the discomfortof the patient; but the drug should be used cautiously, as previouslystated. DENTAL OPERATIONS Teeth extractions, with or without preliminary external alveolectomy,and all other dental operations are best performed by nerve-block. Athorough knowledge of the sensory nerve supply of both jaws is indis- i64 REGIONAL ANESTHESIA pensable before attempting the injections. Figures 134-138 illustratethe areas of nerve supply of the masticatory apparatus better thanany description. Upper Teeth.—Molars.—Two injections are sufficient to anesthetizethe three molars at the same time: the superior posterior dental block bythe oral route (page 80) and the posterior palatine block (page 84).. Fig. 13-1.—Areas of nerve suppl\ of masticatory apparatus A s d n teriorsuperior dental nerve; Msdn, middle superior dental nerve, P s d n , posteriorsuperior dental nerve; Idn, inferior dental nerve, B tt , buccinator ner\e I-o n.,infra-orbital nerve; , mental ner\e Bicuspids and Cuspid.—The upper bicuspids and cuspid are anes-thetized by the superior posterior dental block by the oral route (page80), the infra-orbital block (page 89), and the anterior palatine block(page 84). This procedure anesthetizes also the incisors. Incisors.—The incisor teeth are insensitized at the same time as thecanine (cuspid) by the infra-orbital block (page 89) and the anterior OPERATIONS ON THE HEAD i6s
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