. The science and practice of dental surgery. hof the band material; clamp-bands that aretoo short are equallj- impossible as practicalappliances, especially when they are for pre-molars or upper molars. The markedly convexlingual surface of these teeth seriously affectsthe stability of the band even if it can bemade to stay on the tooth at all invariably happens if the band is so shortthat when it is put on the tooth the clamp-wire is contiguous ^^ith the convex lingualsurface of tlie tooth and has to take the placeof band material; even if it is bent t-o con-form to this
. The science and practice of dental surgery. hof the band material; clamp-bands that aretoo short are equallj- impossible as practicalappliances, especially when they are for pre-molars or upper molars. The markedly convexlingual surface of these teeth seriously affectsthe stability of the band even if it can bemade to stay on the tooth at all invariably happens if the band is so shortthat when it is put on the tooth the clamp-wire is contiguous ^^ith the convex lingualsurface of tlie tooth and has to take the placeof band material; even if it is bent t-o con-form to this convex surface, that frequentlydoes not suffice to enable the operator to makethe band remain satisfactorily on the tooth;the wire is so umielding, and the surface withwhich it is in contact so inclined, that it cannotbe made to stay on these teeth with convexand sloping lingual surfaces. The only solutionof the difficulty is to use a band of larger size. Bands may be lengthened a little by means ofthe Peeso stretching and contouring Fio. 335.—Angles band-forming Pliers with enlargedends having tliree straight edges.(6) A full view of the face of the beak (a).(c) Angular slot for holding nuts,(rf) Circular slot for holding wire. On the incisors and canines plain bands onlyare used, and they are made direct to the naturaltooth. For this purpose a long strip of metalis taken and made to encircle the tooth to bebanded near one of its extremities. The short end is left just long enough to be grasped onthe buccal surface of the tooth, andwitii it thelong piece of band material, where it would comein contact with the short end, is grasped between
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdentistry, bookyear19
