Other

Victor Company

Wendell V Arndt

Carl J Berendt

An orthodontic expansion arch and sheath and sheath insert are provided for use in applying maxillary and mandibular lingual orthodontic appliances for expansion of the arches. The sheath permits use of appliances employing multiple wires composed of non-weldable metal alloys in a more convenient manner and in a greater variety of appliances.

Cast lingual sheath and insert for Ni-Ti orthodontic appliances

Ni-Ti orthodontic palatal expansion arch with cast lingual sheath and

A removable orthodontic palatal expansion arch having a generally 'M'-shaped configuration, the arch having a center segment composed of a near-stoichiometric alloy of nickel and titanium which possesses memory-retaining characteristics to simultaneously expand the bicuspids and expand, rotate, intrude and/or torque the maxillary molars, and end segments composed of an alloy of stainless steel or another biocompatible material configured for securing the archwire to lingual sheaths attached to molar bands.

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Olathe, KS, United States of America

Wendell V Arndt