. Oral anaesthesia; local anaesthesia in the oral cavity, technique and practical application in the different branches of dentistry. erforation at the apex,the cement and also the point will extend beyond, if the fora-men and part of tlie apical root canal is calcified, the root 126 ORAL ANAESTHESIA should be amputated at the place where the filling ends. Pre-vious to and after the root canal filling, we take a radiographfor guide and control of the used: 1. Retractor. 2. Knife. 3. Pliers. 4. Periostial Raspatorium. 5. Sharp retractor. fi. riiisel and mallet or fissure and ro
. Oral anaesthesia; local anaesthesia in the oral cavity, technique and practical application in the different branches of dentistry. erforation at the apex,the cement and also the point will extend beyond, if the fora-men and part of tlie apical root canal is calcified, the root 126 ORAL ANAESTHESIA should be amputated at the place where the filling ends. Pre-vious to and after the root canal filling, we take a radiographfor guide and control of the used: 1. Retractor. 2. Knife. 3. Pliers. 4. Periostial Raspatorium. 5. Sharp retractor. fi. riiisel and mallet or fissure and round burrs. 7. Small curette. 8. Scissors. 9. Sewing outfit. To perform the surgical part of the operation, paint the lineof incision with tincture of iodine, and make a half-round in-cision to cut loose a fiap which is separated from the bone withthe sharp raspatorium; it is then retracted with the sharpretractor upward in the upper jaw, and downward in the Jowerjaw. If a sinus is present it is well to let the incision gothrougli it. Tli(^ retractor is held by an assistant. Removethe alviolar plate to uncover the infected Fig. 82. Showing incision for operation on the left maxillary lateral incisor. PRACTICAL APPLICA TION OF LOCAL ANAESTHESL4 127 This is easy as the bone is usually partly destroyed. It isimportant to have a clear view of the whole extent of the apexof the root. 1. Curetting only necessary. If the apex is not attectedcurette the root and alviolar socket and remove all pathologicaltissue, with suitable curettes. The most difficult part to reachis the part behind tlie root, which can be curetted with a largespoon excavator. 2. Amputation is not necessary, but Apical part of rootcanal is not filled. If the root serves as abutment of a bridge,the removal of which is not wished, but the root canal is onlypartly tilled, amputation is sometimes not advisable because itwould weaken the abutment. In these cases we can, after re-moving the granulum, slit the root w
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