ArticleJournal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie2026
Accuracy of a clear aligner hybrid approach in managing severe rotations of rounded teeth : A retrospective cohort study.
Article in Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Clear aligner therapy: a scoping review of treatment prediction, clinical effectiveness, and limitations.Frontiers in dental medicine · 2026Review
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
aimThe aim of this retrospective study was to evaluate the accuracy of rotational movements of maxillary and mandibular canines and premolars achieved using clear aligners combined with a segmental lingual appliance, as planned in the digital setup, and to compare these results with those obtained using clear aligners alone. MATERIALS AND
methodsThis retrospective cohort study included 40 adult patients, analyzing 40 teeth (20 canines and 20 premolars), each presenting at least 15° of rotation. The sample was divided into two groups: a study group treated with F22 aligners (Sweden & Martina, Due Carrare, Padua, Italy) combined with a segmental lingual appliance to correct rotation without attachments and a control group treated with F22 aligners using vestibular attachments to facilitate the rotational movement. Digital models acquired at three stages-pretreatment (T0), ideal posttreatment (T1), and actual posttreatment (T2)-were analyzed using visual aesthetic malocclusion (VAM, Vectra, Canfield Scientific, Fairfield, NJ, USA) software to assess rotation values and calculate imprecision and accuracy for each tooth. Statistical analysis was conducted to compare the two groups.
resultsThe study group showed significantly higher accuracy in rotational movements compared to the control group. The mean accuracy was 88.3% for the hybrid approach, versus 55.7% for clear aligners with attachments alone, and this difference was statistically significant (p < 0.01). This improvement was consistent across both canines and premolars, with statistically significant differences in all subgroups.
conclusionThe combination of clear aligners with a segmental lingual appliance provided superior control in managing severe rotations of rounded teeth, resulting in greater predictability compared with aligners alone.
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Registered trials
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