The effects of light and vibration on the correction of lower incisor crowding with aligners

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dc.authorid0009-0008-8331-9493
dc.authorid0000-0003-4432-6072
dc.contributor.authorÖzcan, Mustafa
dc.contributor.authorNalbantgil, Didem
dc.date.accessioned2025-10-14T11:34:37Z
dc.date.available2025-10-14T11:34:37Z
dc.date.issued2025
dc.departmentFakülteler, Diş Hekimliği Fakültesi, Klinik Bilimler Bölümü, Ortodonti Ana Bilim Dalı
dc.description.abstractObjective: To compare the effects of low-frequency vibration (LFV), photobiomodulation (PBM), and their combination (HOT) on the rate of mandibular incisor alignment during clear aligner therapy. Methods: This retrospective study included 89 patients treated with a single clear aligner system for mild-to-moderate mandibular anterior crowding. Patients were assigned to four groups: control (n=19), LFV (n=26), PBM (n=21), and HOT (n=23). LFV [30 Hz, 0.25 N (≈25 g)] and PBM (850 nm, 16×5 mm LEDs, ≈9.5 J/cm2 ) devices were used daily for 20 minutes in relevant groups. The primary outcome was the change in Little’s Irregularity Index at baseline (T0), 28 days (T1), 48 days (T2), and 62 days (T3). Statistical analyses included one-way ANOVA, repeated measures ANOVA, and Pearson’s correlation. Results: The HOT group showed significantly greater crowding reduction compared to all other groups (p<0.05). LFV and PBM alone were not significantly different from the control. Within-group analysis revealed significant reductions in all groups over time, with the HOT group showing consistent improvements at each interval. Correlation analyses revealed no significant associations between device usage or aligner wear time and crowding reduction. Conclusion: Combining LFV and PBM during clear aligner therapy produced greater short-term acceleration of mandibular incisor alignment than either modality alone. Further randomized controlled trials are warranted to confirm long-term efficacy and safety.
dc.identifier.citationÖzcan, M., & Nalbantgil, D. (2025). The effects of light and vibration on the correction of lower incisor crowding with aligners. Turkish Journal of Orthodontics, 38(3), pp. 170-176. https://doi.org/10.4274/TurkJOrthod.2025.2025.99
dc.identifier.doi10.4274/TurkJOrthod.2025.2025.99
dc.identifier.endpage176
dc.identifier.issn2148-9505
dc.identifier.issue3
dc.identifier.pmidPMID: 41029937
dc.identifier.scopusqualityQ2
dc.identifier.startpage170
dc.identifier.urihttps://doi.org/10.4274/TurkJOrthod.2025.2025.99
dc.identifier.urihttps://hdl.handle.net/20.500.13055/1134
dc.identifier.volume38
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.indekslendigikaynakTR-Dizin
dc.indekslendigikaynak.otherESCI - Emerging Sources Citation Index
dc.institutionauthorÖzcan, Mustafa
dc.institutionauthorid0009-0008-8331-9493
dc.language.isoen
dc.publisherGalenos Publishing House
dc.relation.ispartofTurkish Journal of Orthodontics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectOrthodontics
dc.subjectClear Aligners
dc.subjectLow-Frequency Vibration
dc.subjectPhotobiomodulation
dc.subjectAccelerated Tooth Movement
dc.titleThe effects of light and vibration on the correction of lower incisor crowding with aligners
dc.typeArticle
dspace.entity.typePublication

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