Elastic Ligatures (often simply called Ligatures) are small o-shaped elasticized rings which fit around the braces brackets to hold the arch wires in place. Some Ligatures are made with latex, but if you have a latex allergy your Orthodontist can order ones which are latex-free. Sometimes Orthodontists use tie wires instead of Elastic Ligatures.
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Ligating Modules, Ligatures, O-Rings, Ligs