Thermoplastic orthodontic arch wire retaining annular ligature a

Dentistry – Orthodontics – Bracket

Patent

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A61C 700

Patent

active

044431902

ABSTRACT:
An orthodontic arch wire retaining elastic annular ligature and process is provided, the ligature being composed of thermo-plastic material which is initially heated to a softened condition, stretched, and allowed to cool while it is maintained in its stretched state. Heat is applied to the ligature after it has been attached to an orthodontic appliance on a tooth, which causes the ligature to shrink and firmly hold the arch wire in place.

REFERENCES:
patent: 3193930 (1965-07-01), Bien

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