Orthodontic Appliance Wiki

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Bracket (Fixed Component)researched

Quick facts

FieldValue
IDOA-0185
Typecomponent
Categorycomponent
Fixed/removablefixed (bonded)
Primary functionhold archwire and transfer forces to tooth
Uses TADsno

Overview

The orthodontic bracket is the central element of fixed appliance therapy. Bonded directly to the labial (or lingual) tooth enamel, the bracket contains a rectangular slot (most commonly 0.022" × 0.028") that engages the archwire. The bracket's prescription — the built-in torque, tip, and in-out values specific to each tooth position — is what drives tooth movement. The wire is held in the slot by ligatures (elastic or steel) or by the bracket's self-ligating mechanism. Brackets are available in stainless steel, ceramic (polycrystalline or monocrystalline alumina), and plastic composites.

Clinical & technical

Mechanism of action

Force is transferred from the archwire, through the bracket slot, to the tooth. The bracket prescription (built-in torque = labio-lingual inclination; tip = mesio-distal angulation; in-out = thickness for arch form) is specific to each tooth position, allowing three-dimensional tooth movement when the archwire is fully seated. In straight-wire technique, minimal bending is required because the prescription does the work.

Indications & case selection

All fixed orthodontic therapy; bonded to all teeth requiring correction; specific prescriptions (MBT, Roth, Andrews, Damon, self-ligating) selected by the clinician. The lab does not select bracket prescription — that is the clinician's choice.

Design & fabrication

Components & materials

clinical history

aesthetic; higher friction

ligatures PowerBar Class II Corrector

common)

Lab fabrication notes

Brackets are manufactured products — no lab fabrication. Lab involvement: bonding indirect bonding trays for precision placement Full labial retainer; indirect bonding is used increasingly for lingual cases and for standardization.

Used in

Appliances that incorporate this component. ★ = fabricated by Clear Fusion Lab.

Common variants & modifications

Roth, MBT, Andrews prescriptions are the most common

clip mechanism replaces tie-wing ligature

monocrystalline (sapphire) or polycrystalline ceramic

treatment (In-Ovation L)

eBrace) with patient-specific torque and angulation

Also known as

Sources

Ormco](https://www.ormco.com/solutions/brackets/)

AJODO](https://www.ajodo.org)

Research log