A practical treatise on artificial crown- and bridge-work . Molais and l>icus})ids lor all-gold crowns should lia\e enoughsubstance removed to make a small space between them andthe antagonizing teeth. The approximal surfaces are renu)vedstraight from the cervical border to the occluding surface, usingdiamond or rubber and coinindnm disks (Fig. 11) and files, andlast of all, as injury to the ai)proxinnd teeth is then more easilyavoidid, the labial and palatal portions, for which small corun-dum points (Fig. 12) and wheels are bist adapted. The cornersare then rounded. Tiie cervical portion,
A practical treatise on artificial crown- and bridge-work . Molais and l>icus})ids lor all-gold crowns should lia\e enoughsubstance removed to make a small space between them andthe antagonizing teeth. The approximal surfaces are renu)vedstraight from the cervical border to the occluding surface, usingdiamond or rubber and coinindnm disks (Fig. 11) and files, andlast of all, as injury to the ai)proxinnd teeth is then more easilyavoidid, the labial and palatal portions, for which small corun-dum points (Fig. 12) and wheels are bist adapted. The cornersare then rounded. Tiie cervical portion, which includes the/)unction of tlie dentine and enamel, is trimmed so that thesides as illustrated at A, Fig. 13, are level and parallel with the 39 40 ARTIFICIAL CROWN- AND BRIDGE-WORK. line of the root, and as deep as the collar is to be placed (Fig. 14).For this purpose, small corundum points, trimmers, and files canbe used. Fig. 15 illustrates a drill, which in the ordinary hand- FiG. n. Fig. 12.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectcrowns, bookyear1889
