Self-Ligating Braces Explained: Are They Faster Than Traditional Braces?

Published · 6 min read · by

Self-ligating braces are one of the most frequently discussed alternatives to conventional fixed braces — and also one of the most frequently misunderstood. The marketing around certain self-ligating brace systems (most notably Damon braces) has at various points made claims about faster treatment, less pain, and fewer extractions that have not always been supported by the clinical evidence. This guide cuts through the noise.

We cover exactly what self-ligating braces are, how they differ mechanically from conventional braces, what the clinical evidence actually says about speed and comfort, who they are most suitable for, and what questions to ask if an orthodontist recommends them for your case.

Key takeaway

Self-ligating braces use a built-in sliding mechanism or clip to hold the wire rather than the elastic or metal ties used in conventional braces. This reduces friction between the wire and bracket. However, systematic reviews comparing self-ligating to conventional braces have not found consistent evidence of faster treatment times, fewer extractions, or meaningfully less pain. The practical advantages — slightly shorter adjustment appointments and no coloured ties to replace — are real but modest. For most patients, the choice between self-ligating and conventional braces is less important than the skill and experience of the orthodontist placing them.

What Makes a Brace Self-Ligating?

In conventional fixed braces, the orthodontic wire is held in the bracket slot using a small elastic tie (an O-ring) or a metal ligature twisted around the bracket wings. These ties create friction between the wire and the bracket as the wire tries to slide through the slot and guide the tooth into position.

A self-ligating bracket has a built-in mechanism — either a spring clip or a sliding door — that closes over the wire and holds it in place without any separate tie. When the mechanism is open, the wire can slide freely through the slot; when closed, it is held securely. This fundamental difference in how the wire is retained has been the basis for a number of clinical claims about self-ligating systems.

Passive vs active self-ligation

Self-ligating brackets divide into two types:

Passive self-ligation (e.g. Damon brackets): the clip holds the wire loosely, with no additional spring force on it. Low friction, but also low engagement — the wire can move freely in the slot.
Active self-ligation (e.g. Speed brackets, In-Ovation): a springy clip or cantilever presses down on the wire, applying a light force. Higher engagement than passive, similar to a light tie, but without the classic O-ring friction.

1930s

Self-ligating brackets have existed since the 1930s — Damon (launched 1990s) popularised them commercially but did not invent the concept

No significant difference

What systematic reviews consistently find when comparing treatment speed between self-ligating and conventional braces

~5 min

Typical time saving per adjustment appointment with self-ligating braces — due to no tie replacement needed

The Claims vs the Evidence

Are self-ligating braces faster?

This is the most prominent claim and the most thoroughly investigated. Multiple systematic reviews — the highest level of clinical evidence — have compared treatment duration between self-ligating and conventional brackets. The consistent finding: no statistically significant difference in total treatment time. A 2014 Cochrane Review and subsequent meta-analyses found that any speed differences observed in individual studies were small, inconsistent, and did not reach clinical significance when data was pooled.

The speed of orthodontic treatment is primarily determined by biological factors — how quickly the bone remodels around moving teeth — not by the friction properties of the bracket. Both bracket types are limited by the same underlying biology.

Do they require fewer extractions?

Damon System literature in particular promoted the idea that low-friction brackets create arch expansion that creates space for crowded teeth without extractions. The clinical evidence does not support this as a general principle. Whether extractions are needed depends on the severity of crowding, the relationship between the teeth and the jaw, and the patient's facial profile — not on which bracket type is used. An orthodontist who recommends extractions for a specific case is not failing to use the self-ligating advantage; they are making a clinical judgment based on case-specific factors that bracket choice does not change.

Are they less painful?

Some studies have suggested that passive self-ligating brackets (which exert lower forces) may be associated with slightly less discomfort in the initial days after a wire change. The difference, where it exists, is small and typically measured in patient-reported pain scores that differ by modest amounts. Most patients find that orthodontic discomfort settles within two to three days of any adjustment regardless of bracket type.

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Practical Advantages That Are Real

While the headline speed and pain claims are overstated in the evidence, self-ligating braces do offer some genuine practical benefits compared to conventional brackets:

Genuine advantages

Shorter adjustment appointments — no tie replacement needed, saving approximately 5–10 minutes per visit
No coloured elastics to change — some patients prefer the cleaner appearance without O-rings
Lower friction at the bracket-wire interface — may facilitate certain wire movements
Available in ceramic (tooth-coloured) versions for a more discreet appearance

Claims not well-supported by evidence

Significantly faster overall treatment time
Meaningfully less pain than conventional braces
Elimination of extraction need for crowding
Superior clinical results vs conventional braces

Self-Ligating vs Conventional: Side-by-Side

Factor Self-ligating Conventional
Wire retention Built-in clip or door Elastic or metal tie
Friction Lower Higher
Treatment speed No consistent difference No consistent difference
Adjustment time Slightly shorter Standard
Coloured ties Not required Used at each appointment
Cost Slightly higher (brackets more expensive) Slightly lower
Clinical outcomes Equivalent Equivalent

Important

The most important factor in orthodontic treatment outcomes is not the bracket type — it is the skill, experience, and judgment of the orthodontist. A GDC-registered specialist orthodontist using conventional brackets will produce consistently better outcomes than a general dentist using any self-ligating system. When choosing a provider, ask about their specialist registration and case experience rather than focusing primarily on bracket type. The guide to choosing an orthodontist covers the key questions to ask at a first consultation.

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References

Cochrane systematic review of randomised controlled trials comparing self-ligating and conventional brackets on outcomes including treatment duration, pain, and clinical results. Finds no consistent evidence of faster treatment time or meaningfully less pain with self-ligating systems compared to conventional fixed appliances.

Cochrane Review — Self-ligating brackets for orthodontic treatment

BOS guidance on types of fixed orthodontic appliances available in the UK, including self-ligating systems, covering how each works, what the evidence says about clinical outcomes, and what patients should consider when choosing between different brace types.

British Orthodontic Society — Fixed appliances for orthodontic treatment

Oral Health Foundation patient information on the different types of orthodontic braces available in the UK, including self-ligating systems, conventional fixed braces, and clear aligners. Covers what each type looks like, how it works, and what patients should discuss with their orthodontist when choosing.

Oral Health Foundation — Types of brace

Cochrane systematic review of randomised controlled trials comparing self-ligating and conventional brackets on outcomes including treatment duration, pain, and clinical results. Finds no consistent evidence of faster treatment time or meaningfully less pain with self-ligating systems compared to conventional fixed appliances.

Cochrane Review — Self-ligating brackets for orthodontic treatment

BOS guidance on types of fixed orthodontic appliances available in the UK, including self-ligating systems, covering how each works, what the evidence says about clinical outcomes, and what patients should consider when choosing between different brace types.

British Orthodontic Society — Fixed appliances for orthodontic treatment

Oral Health Foundation patient information on the different types of orthodontic braces available in the UK, including self-ligating systems, conventional fixed braces, and clear aligners. Covers what each type looks like, how it works, and what patients should discuss with their orthodontist when choosing.

Oral Health Foundation — Types of brace

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Frequently asked questions

What are self-ligating braces?
Are self-ligating braces faster than traditional braces?
What are Damon braces?
Do self-ligating braces hurt less?
Are self-ligating braces more expensive than conventional braces?
What are self-ligating braces?
Are self-ligating braces faster than traditional braces?
What are Damon braces?
Do self-ligating braces hurt less?
Are self-ligating braces more expensive than conventional braces?

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