Dental review; devoted to the advancement of dentistry. . of a cone preparation and force the porcelain to take up this is a strength feature that must be taken care of if you wishto attain a maximum of strength in our finished veneer crown. ORIGINAL COMMUNICATIONS. 385 It is at this point that we fit a seamless copper shell to thetooth, contouring it to fit perfectly at the gingival, so that whenthe impression is taken the cup will not impinge upon the gingivaltissues. This cup should pass as far as possible under the freemargin of the gum. (Fig. 6-A, B and C.) The cup is no
Dental review; devoted to the advancement of dentistry. . of a cone preparation and force the porcelain to take up this is a strength feature that must be taken care of if you wishto attain a maximum of strength in our finished veneer crown. ORIGINAL COMMUNICATIONS. 385 It is at this point that we fit a seamless copper shell to thetooth, contouring it to fit perfectly at the gingival, so that whenthe impression is taken the cup will not impinge upon the gingivaltissues. This cup should pass as far as possible under the freemargin of the gum. (Fig. 6-A, B and C.) The cup is now removed and filled flush with a good modelingcompound. (Fig. 6-D.) The cup is then laid aside until the im-pression of the prepared veneer cone is necessary. We are now ready to cut the shoulder into the tooth. For thispurpose we use a plain fissure bur—size 57J/2 and 58 S. S. WhiteRevelation bur. (Fig. 7-A.) Be very careful, in cutting the shoul-
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Keywords: ., bookcentury1900, bookdecade1910, bookpublis, booksubjectdentistry
