Use of high-frequency vibration to accelerate orthodontic tooth movement during en-masse retraction in adults aged 18–25 years: A single-center, double-blind randomized controlled trial - 13/05/26
Summary |
Introduction |
This single-center, double-blinded, parallel-arm randomized controlled trial evaluated the effect of high-frequency vibration (HFV) on the rate of orthodontic tooth movement (OTM) during en-masse retraction.
Methods |
All consecutive adults (18–25 years) meeting the inclusion criteria between July–September 2024 were included and randomized 1:1 to experimental (HFVdevice, 120 Hz, 0.0003 N, 5 minutes/day) or control (inactive sham device) groups using computer-generated randomization with allocation concealed in opaque, sealed envelopes. Patients and the operator were blinded. En-masse retraction was performed on 0.019 × 0.025-in stainless-steel archwires with 150 g NiTi closed-coil springs and mini-implant anchorage. OTM was measured on digital models at baseline and 4 months. Cephalometric analysis quantified anchorage loss and incisor movement. Pain was recorded using a 10-point Visual Analogue Scale, and compliance was tracked using a self-reported calendar log. Data were analysed with independent t -tests (α = 0.05).
Results |
Out of 38 patients assessed for eligibility, 20 participants were included (mean age: 20.6 years). All participants completed the trial. Retraction was significantly greater in the HFV group for both arches (maxillary: 3.97 ± 0.24 mm vs. 2.75 ± 0.22 mm; mean difference: 1.22 mm, 95% CI: 1.02–1.42; mandibular: 3.76 ± 0.26 mm vs. 2.64 ± 0.27 mm; mean difference: 1.12 mm, 95% CI: 0.87–1.37; P < 0.001 for both arches). Anchorage loss was comparable, with controlled tipping as the incisor retraction pattern. HFV significantly reduced pain at 24 hours ( P = 0.027). Compliance was high in both groups ( > 92%), with no adverse events.
Conclusions |
High-frequency, low-force vibrations (120 Hz, 0.0003 N, 5 min/day) significantly increased the rate of OTM over a 4-month period, reduced initial pain and did not compromise anchorage or compliance. However, the magnitude of this effect appears limited and may not translate into a clinically significant reduction in overall duration of orthodontic treatment.
Registration |
Clinical Trials Registry–India (CTRI/2024/06/069221).
Le texte complet de cet article est disponible en PDF.Keywords : En-masse retraction, Acceleration, Tooth movement, Orthodontics, Extractions, Vibration
Plan
Vol 24 - N° 3S
Article 101187- septembre 2026 Retour au numéro
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