Mechanical Dentistry; A Practical Treatise on the Construction of the Various Kinds of Artificial Dentures, Comprising Also Useful Formulae, Tables and Receipts for Gold Plate, Claps, Solders, Etc

Mechanical Dentistry; A Practical Treatise on the Construction of the Various Kinds of Artificial Dentures, Comprising Also Useful Formulae, Tables and Receipts for Gold Plate, Claps, Solders, Etc

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1878 edition. Excerpt: ...perfectly cold. The clamp having been removed, a knife may then be carefully used to prise it open at the main joint; the case will generally be retained--opening the flask in this manner--in the upper part; the lid must then be removed; and the best way to get out the piece is to insert a strong-bladed plaster knife between the plaster and the wall of the flask, using the latter as a guide to work against, and send the blade through; repeat this round about two-thirds or three-fourths of the flask, when the plaster may easily be pressed out by the thumb; the cutting away of the plaster from about the case is then very easily accomplished. In taking a case out of the flask in this manner, cut along the back wall first, and be careful in sending the knife through--particularly round the teeth--to keep the blade close to the metal of the flask; if it is carelessly entered into the plaster the teeth may be broken. With care, however, this will be found the quickest and safest method to adopt, as a rule, in taking a vulcanite case from the flask. To cleanse the surface of the vulcanite from the plaster, it will generally be sufficient to brush it well with a strong brush and water. The palate surface of a vulcanite case should never be scraped or cut with a graver. Finishing Vulcanite.--This is done with files, gravers, or scrapers, sandpaper, and sometimes water of Ayr stone, and the "wheel." The ironteethed wheels, for "scouring down," which were sometimes used when vulcanite was first introduced, are now entirely abandoned as altogether unfitted for the work of the present day, which if properly constructed requires only the edges to be reduced and the general surface to be scraped. The quickest and most satisfactory...show more

Product details

  • Paperback | 60 pages
  • 189 x 246 x 3mm | 127g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236737334
  • 9781236737335