The Student's Manual and Handbook for the Dental Laboratory

The Student's Manual and Handbook for the Dental Laboratory

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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. 1890 edition. Excerpt: ...thin, high, and seamless. In these, thecontinuous-gum process is the only available one, as by it a thin gum can be secured and yet be strong, because it is baked to the plate. A In selecting teeth, if there are teeth remaining in thejaw, there is little difliculty, because it is only necessary to match, in shape and color, these natural teeth. Do not use gum teeth unless it is absolutely necessary. If it is, look for teeth with the gums extending but a short distance below the neck of the tooth, as the natural gum has receded and needs to be matched in this respect. The corners of the gum on a single tooth should be rounded and ground, to match nicely the natural gum. Generally there is not room for the plate behind the gum, without making the gum too thin, or preventing the setting of the gum farenough in to match the natural gum. The gum as well as the teeth should match in shade. As far as possible, select front teeth with the pins per pendicular; occasionally the bicuspids and molars require" " cross " pins. " In partial rubber sets, the rubbercan often be used for' gums, and when possible, it is better. If the bite is so close in front, there is not room for the thick rubber teeth, select a plate tooth, and solder a backing, with a foot-piece that can be enclosed in the rubber. If the bite is very close over the lower posterior teeth, make use of cuspids, or else what are known as "crown." teeth, instead of bicuspids and molars, and have the lower teeth close on a rubber surface. In case of a gold plate, when this condition of things exists, attach the teeth with rubber, or make a shoulder of gold to bite on. In the selection of teeth for full upper sets, the lower are usually a guide in more

Product details

  • Paperback | 24 pages
  • 189 x 246 x 1mm | 64g
  • United States
  • English
  • black & white illustrations
  • 1236738780
  • 9781236738783