Orthodontic appliance

Details Orthodontic appliance Orthodontic appliance

1978-09-14

1981-03-10

Peshock, Robert

Dentistry

Orthodontics

Means to transmit or apply force to tooth

A61C 700

Patent

active

042551390

ABSTRACT:
The invention relates to a retractor for the correction of dental misplacement comprising two wire members overlapping each other and displaceable relative to each other in a longitudinal direction against the action of a helical pressure spring, the first of said wire members carrying said pressure spring between the end overlapping the second wire member and a guiding member comprising an opening to hold said guiding member displaceably on said first wire member, and said second wire member being displaceably guided along said first wire member by means of said guiding member which is in the form of a tube.

REFERENCES:
patent: 2580042 (1951-12-01), Paus
patent: 3641672 (1972-02-01), Kesling

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