Orthodontia practically treated : designed for the use of both practitioner and student / by Miland A. Knapp.

  • Knapp, Miland Austin, 1868-
Date:
1904
Catalogue details

Licence: Public Domain Mark

Credit: Orthodontia practically treated : designed for the use of both practitioner and student / by Miland A. Knapp. 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.

    410/424 (page 398)
    361. Fig. 560 shows a good form of appliance to use when one or two molars are missing and the bicuspids have separated. If an opposite cuspid or lateral is to be moved out of inlock, it is necessary to hand both bicuspids and the remaining molar and connect them as shown in the drawing. By so doing- suf- ficient anchorage will be obtained in nearly every case, although the molar would offer very little resistance if used alone or in connection with only one bicuspid. Fig. 561. 362. Fig. 56] sh<»ws a combined stud bar and jack-screw ap- pliance. An appliance of this form may be used to draw a cuspid hack and move a central forward, to give room For a lateral, or to reinforce the anchorage of a molar when cither a cuspid is to be drawn back or a central moved Forward. 363. When any of the bars arc to be cul shorter, after the proper length has been ascertained they should be cut with wire cutters and the bur removed with a file. Alter tin- bar