Manual of dental surgery and pathology . hemore irregularly shaped cavities, intothe inequalities of which it can be morereadily compressed. 3. By stars of strips.—This processconsists in folding the foil into a broadtape, about half or three-quarters of aninch in breadth, and then cutting it atright angles to its length into narrowstrips. Of these three or four, arrangedover each other in form of a star (), are taken up at their centres by thefoil-forceps, or the pointed extremity ofa plugger, and inserted, the central \M)r-tions downwards, into the cavity, afterwhich the iiroiecting e
Manual of dental surgery and pathology . hemore irregularly shaped cavities, intothe inequalities of which it can be morereadily compressed. 3. By stars of strips.—This processconsists in folding the foil into a broadtape, about half or three-quarters of aninch in breadth, and then cutting it atright angles to its length into narrowstrips. Of these three or four, arrangedover each other in form of a star (), are taken up at their centres by thefoil-forceps, or the pointed extremity ofa plugger, and inserted, the central \M)r-tions downwards, into the cavity, afterwhich the iiroiecting ends are folded Method of taking up gold foil i i • i i i for inHcrtion into a cavity on the dowuwards and Hiwards, aiid pressed plan of Htars or stripH. The cut j,)^^ ^Jj^, ^ ^. ^^,^?^ j ^J^g forCepS Or to the loft representH the mode of * *_ _ ^ _ taking up the foil with tweezerHj pluggcr: furtlicr portious are in likethat on the right of doing ho on j^^^,^j,^,g^, added, the foot-pluggcrs bcincr the point of a plugger. i oO c<. TREATMENT OF DENTAL CARIES. 201 Fi:. 191. constantly eniplo^cd to condense laterally, and the wedges usedin the latter stages, until tlie cavity is densely tilled, wheu thefinishing process, as before, is employed. Thismethod is best adai)ted for narrow and deepcavities, where a perfect parallelism is less im-portant, as the surface is small in comparisonwith the depth of the cavity: it is also veryusefully combined with other methods, esjie-cially in applying the last })ortions of gold: aheavy gold, twenty grains to the leaf, is insuch cases very readily pressed down to thebottom of a small deep oritice, when a lighterfoil would stick on the way, or be perforatedby the narrow instrument. 4. By cylinders.—By this elegant methodthe most perfect parallelism of folds is attained. Ficr. 192. Tlie form iii which gold foil prepared in cylinders is now sold. It is accomplished by dividing, say, a leaf ofNo. 5 foil into two, three, or four strips, andf
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectdentist, bookyear1882
