Orthodontic bracket with protective insert or liner

Details Orthodontic bracket with protective insert or liner Orthodontic bracket with protective insert or liner

1976-06-23

1981-11-24

Peshock, Robert

Dentistry

Orthodontics

Bracket

A61C 700

Patent

active

043025323

ABSTRACT:
A plastic orthodontic bracket has an insert in the arch wire opening thereof which is of a material harder than the plastic material from which the bracket is fabricated. Preferably, the insert or liner is a metal material. The bracket with the insert or liner may be made by molding the plastic material around the liner material or by molding the plastic bracket and later inserting a previously formed liner or insert. Alternatively, the bracket may be made by means of extrusion of a plastic material and/or the liner material, the resultant elongated structure being then cut up into sections to form the individual brackets.

REFERENCES:
patent: 2908974 (1959-10-01), Stifter
patent: 3775850 (1973-12-01), Northcott
patent: 3964165 (1976-06-01), Stahl
American Journal Orthodontic and Oral Surgery, Jul. 1938, p. 639.

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