The American text-book of operative dentistry / In contributions of eminent authorities. Ed. by Edward C. Kirk.

  • Edward Cameron Kirk
Date:
1900
Catalogue details

Licence: Public Domain Mark

Credit: The American text-book of operative dentistry / In contributions of eminent authorities. Ed. by Edward C. Kirk. Source: Wellcome Collection.

Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.

    710/864 (page 708)
    A new application of force has been lately introdueed, viz. the elongation of win; by pinching or compressing it with s])ecial round Fio. 633. Fig. 634. ^yip'i^k <//' Coffin spring plate for lower arch. Coflin spring plate for single teeth. pliers, shown in Fig. 676. This may be used in many places in,stead of the jack-screw. The ccHistruction of jack-screws and drag-screws has been greatly simplified. Thin soldered bands are cemented to the teeth, or anchor bands, the ends of which are united by screw and nut. To these bands tubes arc soldered for the attachment of appliances which are so constructed that force once applied need not be withdrawn till the en- tire movement is accomplished. A rest may be allowed, but no back- ward movement. Thus no interference is made with building up the tissues behind the tooth. Appliances, complete or in parts, to be adajited to special cases have been put on the market by Prof. Angle. These more nearly fill the want of one who cannot make all his appliances. Dr. V. H. Jackson's method consists in the use of piano wire or other elastic wire for force and the attachment of the wire to the teeth, in most cases, by means of a crib made of the wire itself, and not by means of bands or plates. For full descriptions of these methods the student is referred to the writings of the authors themselves.^ General Directions. All metallic bands which are to remain in contact with the teeth for any length of time should be cemented to them with zinc phosphate, to prevent deleterious action of acids of fermentation which would be gen- erated and retained between bands and teeth. The rubber dam should be applied whenever possible to the tooth to be banded, and to one or 'In the American Text-Book of Pros^thetic Dentistry, edited by Dr. Charles J. Essig, will be found a chapter on Orthodontia Technic, by the writer, in which tlie making of regulating appliances is described much more fully than is possible here.