Can laser light make braces work faster?
NCT ID NCT02181439
First seen Sep 14, 2026 · Last updated Sep 15, 2026 · Updated 1 time
Summary
Researchers test whether low-level laser therapy can speed up orthodontic tooth movement in children with Class II canine alignment. Each child acts as their own control: one side of the mouth receives real laser treatment and the other gets a fake, inactive laser. All participants wear intermaxillary elastics as part of their usual braces treatment. The study measures how long it takes to reach proper canine alignment on each side over six months.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- low-level laser therapy delivered by a SiroLaser advance device
- What this could lead to
- If it works, low-level laser therapy could become a routine add-on to shorten orthodontic treatment time for children who need Class II canine correction.
- What could go wrong
- This is a small, single-center study in children, and the laser may not speed up tooth movement enough to matter. Results might not apply to other orthodontic cases or clinics.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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41 people
The number who actually took part.
- Started
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Oct 2014
- Finished
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May 2018
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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10 to 18 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Pre-inclusion criteria: Written consent of parental authority, ie if any of the two parents, will be required, but the apparent unwillingness of the child shall prevail if any. No exclusion period is required if the child has already attended another biomedical research. Inclusion criteria: * With a Class II canine complete or partial, bilateral and symmetrical * In permanent dentition (no deciduous teeth in the arch) * Requiring the use of intermaxillary strength (FIM) II correction dental class II during a multi fasteners orthodontic treatment * Leveling done beforehand\* * Anchor of the mandible is maximum * The same technique employed should be segmented in the maxilla, in all patients (lateral sectional canine to molar). Exclusion Criteria: Patient : * having a mental deficiency or child who can not read or write (difficulties in completing the questionnaire ) * with lack of cooperation (withdrawal, refuse to wear FIM II) * who missed at least 3 consecutive appointments according to the medical record , * with orofacial malignant tumor * having unbalanced chronic diseases or patient receiving treatment that can interfere with orthodontic treatment or with pain assessment (antibiotics, analgesics, treatment of bone and mineral metabolism, diabetes, hormonal treatments excluding contraceptives) * with a Class II dental unilateral and asymmetric * with a dental anomaly from shape and / or structure related to the following teeth: maxillary canines and first molars causing an increased risk of detachment brackets * with anomalies of number : agenesis of permanent teeth * with a mixed dentition * refusing to give consent or with one or two parents refusing to give their consent (for minor patients) * participating in another biomedical research * pregnant
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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CHU de NANTES - Service d'odontologie restauratrice et chirurgicale, UIC odontologie
Nantes, 44042 Nantes Cedex, France