This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1882 Excerpt: ...ground in water to the consistence of cream, and by heating to the melting point of the solder, the blowpipe flame being thrown down upon it, this lid or end is united with the ferrule proper. With the file the edges of the lid are dressed down level with the ferrule, the outside is smoothed, and the end next the bone ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1882 Excerpt: ...ground in water to the consistence of cream, and by heating to the melting point of the solder, the blowpipe flame being thrown down upon it, this lid or end is united with the ferrule proper. With the file the edges of the lid are dressed down level with the ferrule, the outside is smoothed, and the end next the bone has the proximate surfaces cut away with a round file to correspond with the festoons of the gums and septa of bone between the teeth, where they hang lower. The edge next the gum is then slightly beveled from the outside, making a chisel or gouge-like edge to pass up around the root and in the closest contact with it. The ferrule is now placed upon the root and pushed or driven home, and the points for putting on the cusps of the crown are marked. Buttons, made by melting scraps of the coin, are first slightly flattened by the blows of a hammer, while they are lying upon a smooth steel surface, then tried as to size and shape, allowing a very slight thickness for grinding off, to perfect the occlusion or biting against the antagonizing teeth, after the crown is finally placed. The part of the ferrule that is to be next the lip or cheek may have a slight mark scratched upon it for the sake of convenience in replacing the crown, and the ferrule may then be drawn off from the root by working it down with a dull hoe excavator, being careful not to nick the edsre of the gold or scratch the tooth. The ferrule should now be solidly filled with moistened sand, to which a little plaster has been added, as for investing plates and artificial teeth for soldering, and the whole, excepting the top or lid, should be embedded in a slightly conical mass of the same. The buttons to form the cusps should be placed in position on the lid of the ferrule as soon ...
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