Dentistry – Orthodontics – Means to transmit or apply force to tooth
Patent
1989-04-18
1990-12-04
Stone, Cary E.
Dentistry
Orthodontics
Means to transmit or apply force to tooth
A61C 300
Patent
active
049750526
ABSTRACT:
An orthodontic applicance for preventing unwanted rotation of a tooth during its translational movement along a main guide-wire. The appliance is adapted to be held by at least one bracket affixed to a tooth. The appliance includes a main spring assembly for causing, when activated, translational movement of a tooth along the main guide-wire to reduce space between the tooth and another tooth. An auxiliary spring assembly, which is separate and spaced from the main spring assembly, includes a spring and a mesial leg extending from the spring. The auxiliary spring assembly is used to substantially prevent unwanted rotation of the tooth being moved in a lateral direction. Orthodontic wire, which includes an anchoring end, interconnects the auxiliary spring assembly and the main spring assembly. In the preferred embodiment, the mesial leg and spring are connected to a side of the bracket while the anchoring end is connected to another tooth other than the tooth having the bracket to which the auxiliary spring assembly is connected.
REFERENCES:
patent: 3121953 (1964-02-01), Asher
patent: 3137941 (1964-06-01), Andrews
patent: 3162948 (1964-12-01), Gerber
patent: 3256602 (1966-06-01), Broussard et al.
patent: 4197643 (1980-04-01), Burstone et al.
patent: 4199865 (1980-04-01), Cain
patent: 4255139 (1981-03-01), Ladanyi
patent: 4478577 (1984-10-01), Warren, Jr.
patent: 4664626 (1987-05-01), Kesling
Ricketts, R. M., "Development of Retraction Sections", (Part 10), Features of the Bioprogressive Therapy (No. 16) (1974).
Gjessing, P., "Biomechanical Design and Clinical Evaluation of a New Canine-Retraction Spring", Am. J. Orthod. v. 87, No. 5, pp. 353-362, St. Louis, (May, 1985).
Ziegler, P. and Ingervall, B., "A Clinical Study of Maxillary Canine Retraction With a Retraction Spring and With Sliding Mechanics", v. 95, pp. 99-106 (1989).
Haskell Bruce
Spencer William
LandOfFree
Orthodontic appliance for reducing tooth rotation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Orthodontic appliance for reducing tooth rotation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Orthodontic appliance for reducing tooth rotation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-881059