Orthodontia and orthopœdia of the face / by Victor Hugo Jackson.

  • Jackson, Victor Hugo.
Date:
1904
Catalogue details

Licence: Public Domain Mark

Credit: Orthodontia and orthopœdia of the face / by Victor Hugo Jackson. Source: Wellcome Collection.

    563/638 (page 473)
    Incisors, Upper, to move Inward A. An appliance with a palatine base-wire and semicircular spring for moving incisors inward. Action is caused by closing the loops of the spring. Two finger-springs are attached in the anterior part of the anchorage to rest on the lingual side of the incisors for evening them. B. A device with both a palatine and a lingual base-wire. A semicircular spring is arranged to move the incisors inward and to rotate them by forcing them against the lingual base-wire. C. An appliance for moving inward prominent incisors and rotating them, made with a lingual and a palatine base-wire, and a semicular spring with U-shaped loops. To the lingual base-wire is attached a thin piece of plate- metal, suitably shaped to project forward and rest on the lingual side of the teeth for evening them as pressure is caused by the spring. D. A device with a lingual and a palatine base-wire for moving incisors inward and rotating them. It has a partial-clasp fitted to each of the teeth. E. A T attached to a semicircular spring with U-shaped loops resting over the palatine arch. F. An appliance with a semicircular spring and U-shaped loops. The spring is arranged to rest on the labial faces of the incisors and pass to the lingual side, where the ends of the loops are attached to the anchorage. 473