Catching's Compendium of Practical Dentistry Volume 6

Catching's Compendium of Practical Dentistry Volume 6

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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. 1896 edition. Excerpt: ...apparatus is ready to commence the application of force at the next sitting. An apparatus for moving the roots of the anterior teeth in a posterior direction is in the main constructed quite similarly. (See Fig. 6.) The power bar now being used for traction force, the same rigidity is not as necessary as in the other apparatus. I find, therefore, that a No. 16 wire, not flattened in front, is of sufficient size. The other, or lever bar, the force of which acts in the opposite direction to prevent the occluding ends of the teeth from being drawn back, should be as large as No. 18. It should be flattened in the same manner described for the power bar. The upper ends of the upright bars are grooved on their anterior surfaces to form a rest for the power bar; while a shoulder is filed on the posterior surface of the lower ends, which forms a slot, when in place, for the flattened lever bar to rest. It being understood with this apparatus that the power bar nuts work at the posterior ends of the tubes, while those of the lever bar work at the anterior ends. Proper provisions for this arrangement should be made when constructing the anchorage appliances. ESTHETIC REGULATING APPLIANCES AND ANCHORAGES FOR SAME. DR. J. N. EARRAR, NEW YORK. Ohio Dental Journal, March. The writer, in speaking on the esthetic in mechanism, says: Failure may arise from lack of skill on the part of the operator or by perversity of the patient. But many failures can be traced solely to the disgust of patients, through lack of esthetics in the mechanisms; because conspicuously black and filthy mechanisms do not encourage the patient. There have been many failures, by the use of such things, that would have ended in a glorious success if delicately and beautifully made gold...show more

Product details

  • Paperback | 104 pages
  • 189 x 246 x 6mm | 200g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236622049
  • 9781236622044