Ligature (OA-0304)researched

Quick facts

Field	Value
ID	OA-0304
Type	component
Category	component
See also	Ligature Ligature (elastic); Steel ligature Steel ligature

Overview

OA-0304 is an alternate catalog ID for the orthodontic ligature. Full clinical and technical details: see Ligature (elastic ligature) and Steel ligature (steel ligature).

Common variants & modifications

• Standard elastomeric O-ring: most common; one per bracket;

preformed ring

• Colored elastomeric: patient preference; same mechanics as

natural

• Steel ligature (0.010" wire): more precise torque engagement;

used in finishing stages

• Figure-8 ligature: single module tied in figure-8 across two

brackets; consolidation use

• Self-ligation: eliminates ligature entirely (Damon, Clarity SL

clip systems)

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Sources

• [Ligatures in Fixed Appliance Therapy —

JCO](https://www.jco-online.com)

• [Elastomeric Ligatures: Friction and Force Decay —

AJO-DO](https://www.ajodo.org)

• [Wire vs Elastomeric Ligation — Angle

Orthodontist](https://meridian.allenpress.com/angle-orthodontist)

Research log

• 2026-06-09 — cross-referenced to OA-0189 and OA-0190.