. Oral anaesthesia; local anaesthesia in the oral cavity, technique and practical application in the different branches of dentistry. e, if several adjoining teeth are to be anaes-Injection thetized from the labial or buccal side by tlie in-filtration method, the long needle is insertedover the apex of the root of the tooth farthest forwardor nearest the operator. After liaving injected for this ^■^ > i| ^^KKm^Mtui, ^m£ HI^^F-r L ^y M i ^ll^ fr^^ Pf^ h-P Mk ^ 1 Mh^, ^ , Mi ■ k \ \ ^ h L f 1 s X 1 1 , ^ ■^^m ^^^^jig^^|«^^^^^H Fig. 40. Radiograph showing the horizontal injection for bicuspid
. Oral anaesthesia; local anaesthesia in the oral cavity, technique and practical application in the different branches of dentistry. e, if several adjoining teeth are to be anaes-Injection thetized from the labial or buccal side by tlie in-filtration method, the long needle is insertedover the apex of the root of the tooth farthest forwardor nearest the operator. After liaving injected for this ^■^ > i| ^^KKm^Mtui, ^m£ HI^^F-r L ^y M i ^ll^ fr^^ Pf^ h-P Mk ^ 1 Mh^, ^ , Mi ■ k \ \ ^ h L f 1 s X 1 1 , ^ ■^^m ^^^^jig^^|«^^^^^H Fig. 40. Radiograph showing the horizontal injection for bicuspid and molar region. LOCAL ANAESTHESIA 71 first tooth, push the needle along the bone in horizontaldirection, till you have reached the place opposite the apex ofthe second tooth; here again deposit some of the solution andproceed in same manner for the next tooth. This method canhe used for a series of teeth in the incisor region, in the upperas well as in the lower jaw, and for anaesthetizing adjoiningmaxillary bicuspids and molars. The use of the horizontalinjection is only advisable in healthy tissue. It is easy to see. Fig. 41. Radiograph showing the horizontal injection in a coronal section. how we would spread an infection, if the needle was passedthrough an abscess, while anaesthetizing the first tooth, all thearea would be inoculated. For infected areas we resort to theconductive method. For surgical anaesthesia use the conduc-tive method at the palatal side. C. CONDUCTIVE ANAESTHESIA In the conductive method the conductivity of the main trunkof the nerve supplying the teeth and tissues in the oral cavity 72 ORJL ANAESTHESIA is intercepted or blocked at a convenient point, while in theinfiltration anaesthesia the drng acts on the peripheral the place of insertion is nsually quite removed from thefield of operation, we resort to this method, if the infiltra-tion method is contra-indicated on account of septic condi-tions. It is used if the infiltration ni
Size: 1884px × 1326px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookid39002010739275medyaleedu
