Braces Diagram: Every Part Explained (2026)
Braces are built from a few named parts: brackets bonded to each tooth, the archwire that actually moves teeth, ligatures (the colored ties), buccal tubes and molar bands that anchor the back, and elastics you change to fix the bite. Knowing the names helps you describe a problem precisely and understand any repair fee.
Labelled braces diagram
The diagram below maps the five core parts of fixed braces. Each is explained in detail underneath, along with how it commonly breaks.
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The diagram shows the hardware; the calculator shows the price. Adjust the braces type, treatment length and case complexity for a personalised 2026 estimate.
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* Estimates based on 2026 U.S. national averages. Actual costs vary by location and provider.
The core parts, one by one
1. Bracket — the handle
A small metal or ceramic square bonded directly to the enamel. It does not move the tooth itself; it gives the archwire something to grip. How it fails: a "floating bracket" debonds after hard or sticky food and slides along the wire — the tooth pauses until it is re-bonded.
2. Archwire — the engine
A U-shaped nickel-titanium or stainless-steel wire running through every bracket slot. It tries to spring back to its ideal arch shape, dragging teeth along as it straightens. How it fails: as teeth align, the wire can poke out behind the last molar; wax or a clinician trim fixes it.
3. Ligatures (O-rings) — the lock
Tiny elastic rings — the colors patients choose — that lock the archwire into each bracket. How it fails: they pop off or, if clear, stain yellow from curry, tomato sauce or coffee. A snapped one is rarely urgent.
4. Buccal tube & molar band — the anchor
The buccal tube is a small tube on the back molar that anchors the end of the archwire; when a glued bracket will not hold, it is welded to a metal molar band cemented around the tooth. How it fails: sticky food can pull the wire out of the tube, leaving a sharp end against the cheek.
5. Elastics & power chains — bite and gaps
Take-home elastics hook between the upper and lower arches to correct overbite or underbite — skipping them leaves teeth straight but the bite off. A power chain is a connected row of O-rings that closes gaps with extra force, and feels more sore than single ties.
Parts, problems and repair cost
| Component | Material | Common problem | Easy home fix? |
|---|---|---|---|
| Bracket | Steel / ceramic | Debonds from tooth | No — needs re-bonding |
| Archwire | NiTi / steel | Pokes at the back | Yes — wax, then clinician trim |
| Ligature / power chain | Elastic | Pops off or stains | Yes — leave it, mention at visit |
| Buccal tube / molar band | Steel | Loosens or wire slips out | No — see orthodontist |
| Elastic (bite) | Latex | Lost or forgotten | Yes — resume normal wear |
What repairs typically cost
Many practices fold the first repair into an all-inclusive fee, then charge per incident afterward. These ranges come from ADA fee data, FAIR Health and published 2025-2026 figures:
| Repair | Typical U.S. cost |
|---|---|
| Re-bond a loose bracket | $25 – $150 |
| Replace a broken archwire | $25 – $100 |
| New ligatures / power chain | $0 – $50 |
| Replace a molar band / buccal tube | $50 – $250 |
Ask up front whether your treatment fee includes repairs or bills them separately — it is a common source of surprise charges.
Emergency hacks that won't backfire
- Poking wire — cover the end with orthodontic wax; never cut the main archwire, which lets teeth drift back.
- Floating bracket — call the office even if it does not hurt; that tooth stops moving until it is re-bonded, extending treatment.
- Never double up elastics — too much force can shorten roots (root resorption); just resume normal wear.
- Build a kit — orthodontic wax, interdental brushes and tweezers handle most after-hours problems.
Related braces guides
Braces Cost (All Types)
Metal, ceramic, lingual and aligner pricing in one place.
Self-Ligating Braces
Braces with a built-in clip instead of ligatures.
Lingual vs Ceramic Braces
The two discreet braces options, compared.
Affordable Braces for Adults
Lower-cost routes when you pay out of pocket.
Invisalign vs Braces
When removable aligners beat fixed hardware.
Retainers: Permanent vs Removable
The hardware you wear after braces come off.
Frequently asked questions
What are the main parts of braces?
What does the archwire do in braces?
What are the colored bands on braces?
What is the metal ring on my back tooth?
What are power chains and elastics for?
How much does it cost to fix a broken part of braces?
What should I do if a wire is poking my cheek?
Independent dental pricing research — figures verified against the ADA Dental Fee Survey, FAIR Health and CMS fee schedules. Not medical advice.