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Low-level laser therapy effectiveness in accelerating orthodontic tooth movement: A randomized controlled clinical
The Angle Orthodontist
|November 22, 2016
Summary
Low-level laser therapy (LLLT) significantly accelerates orthodontic tooth movement in patients with crowded maxillary incisors. This laser treatment reduced overall treatment time and improved alignment compared to controls.
Area of Science:
- Orthodontics
- Biotechnology
- Dental Research
Background:
- Crowded maxillary incisors present a common orthodontic challenge.
- Accelerating tooth movement can reduce overall treatment duration and improve patient experience.
Purpose of the Study:
- To evaluate the effectiveness of low-level laser therapy (LLLT) in accelerating orthodontic tooth movement.
- Specifically assess LLLT's impact on leveling and alignment of crowded maxillary incisors.
Main Methods:
- A randomized controlled trial with 26 patients undergoing premolar extraction for severe maxillary incisor irregularity.
- Patients received either LLLT (830-nm wavelength, 2 J/point) or were in a control group.
- Alignment was assessed using study casts at multiple time points.
Main Results:
- A statistically significant reduction in overall treatment time was observed in the LLLT group (P < .001).
- Significant improvements in leveling and alignment percentage were noted at 1 month (P = .004) and 2 months (P = .001) post-treatment.
Conclusions:
- Low-level laser therapy (LLLT) is an effective adjunctive method for accelerating orthodontic tooth movement.
- LLLT demonstrates potential to expedite the leveling and alignment phase in orthodontic treatment.

