A - Human Necessities – 61 – C
Patent
A - Human Necessities
61
C
83/1, 83/9
A61C 7/00 (2006.01) A61C 7/14 (2006.01)
Patent
CA 1309281
PLACEMENT APPARATUS FOR LINGUAL AND BUCCAL BRACKETS Abstract Apparatus for accurately placing orthodontic brackets on the lingual or labial surfaces of a model of a patient's maloccluded teeth in conjunction with an indirect bonding procedure or the like. A model support incorporates an immovable base forming a spherical surface segment which receives a complimentary spherical surface segment of a movable model platform thus providing for rotation of the platform in all planes of space about a centroid region. The maloccluded model is placed on the movable platform with a selected tooth thereof located at the central region of a sphere of which the spherical surface segments form a part. A tooth orienting template is releasably supported in fixed relation to the base structure and is selected according to the centrally positioned tooth of the model. The optimum position of the selected tooth relative to an optimum dental arch at the labial surface thereof is identified for bracket attachment to the labial surface. For attachment of brackets to the lingual surface of the tooth the labial bracket position is translated to the lingual surface of the tooth such that the lingual archwire slot position corresponds to the optimum labial archwire slot position. Bracket holding and release apparatus is employed to accurately position a bracket on the selected labial or lingual surface for temporary attachment thereof to the model. With all of the brackets attached to the model a conventional indirect bonding procedure may be carried out to accomplish bonding of the brackets to the enamel surfaces of the teeth of the patient.
561428
Creekmore Thomas D.
Finlayson & Singlehurst
LandOfFree
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