3m Innovative Properties Company

John J Palmer

John S Kelly

William E Wyllie, Ii

Glenys A Thorstenson

James D Cleary

James D Hansen

David S Arney

Philip P Soo

Joyce C Ho

Joseph D Hart

William E Ii Wyllie

An orthodontic article and method of making the orthodontic article, where the orthodontic article includes a fine-grain ceramic bracket and a metal liner secured in an archwire slot of the bracket with a brazing alloy comprising silver, copper, and at least about 1.5% by weight titanium.

Orthodontic bracket with brazed archwire slot liner

A hand instrument for detaching orthodontic brackets from a patient's teeth has first jaw, a second jaw and a blade that extends between the first jaw and the second jaw. The blade is received in a channel of a bracket during a debonding procedure, and serves to releasably clamp mesial and distal sections of the bracket to the hand instrument as the sections are detached from the tooth.

Orthodontic hand instrument for detaching brackets from teeth

An orthodontic coupling includes a first portion and a second portion that are resiliently interconnected for movement toward and away from each other. The second portion is adapted for insertion into a passage of an orthodontic appliance, and the resilient connection between the first portion and the second portion releasably secures the coupling in place. The coupling is particularly useful for connecting force modules such as Class II correctors to buccal tube appliances.

Coupling for orthodontic assembly

An orthodontic appliance such as a bracket or buccal tube is made of a stainless steel alloy that includes chromium, nickel and precipitates of titanium. The alloy imparts a relatively high strength to the appliance and is resistant to corrosion. Optionally, the appliance has structural sections that are smaller than corresponding sections of comparable appliances when made of conventional stainless steel alloys used in orthodontic appliances. As a consequence, the appliance is more aesthetic when mounted on a tooth of a patient undergoing treatment.

Orthodontic appliance with improved precipitation hardening martensitic alloy

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Monrovia, CA, United States of America

John J Palmer