ArticleJournal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie2024
Dentoskeletal effects of clear aligner vs twin block-a short-term study of functional appliances.
Article in Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07608406 (Evaluation of the Efficacy of Functional Therapy Using Modified Twin Block Versus Clear Twin Block in Class II Skeletal Patients), which is not on this map. Cited by 25 papers, 3 of them syntheses that pooled it.
What it found
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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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Evaluation of the Efficacy of Functional Therapy Using Modified Twin Block Versus Clear Twin Block in Class II Skeletal Patients: A Randomized Controlled Clinical Trial
Who cites it
25 citing papers in PubMed, 3 syntheses or guidelines pooled it, 32 citations in OpenAlex.
- Comparative efficacy of clear aligner mandibular advancement versus traditional functional appliances for skeletal Class II malocclusion: a systematic review and meta-analysis.BMC oral health · 2026Pooled it
- Precision wings treating skeletal class II in growing patients: a systematic review and meta-analysis.Progress in orthodontics · 2025Pooled it
- Effects of clear aligners treatment in growing patients: a systematic review.Frontiers in oral health · 2024Pooled it
- The effect of mandibular advancement with clear aligners compared with activator therapy on maxillary and mandibular volumes: a randomized controlled trial using CBCT.BMC oral health · 2026Trial
- Analysis of the efficacy of AngelAligner A6 mandibular advancer and Twin Block in the treatment of class II malocclusion in growing patients: a prospective clinical study.BMC oral health · 2026Article
- Changes in Masticatory Muscle Activity Following Interceptive Orthodontic Treatment in Children with Class II Malocclusion: A Multicenter Controlled Longitudinal Surface Electromyographic Study.Children (Basel, Switzerland) · 2026Article
- Comparative evaluation of the skeletal, dental, and soft-tissue effects of twin block, monoblock, and invisalign mandibular advancement appliances.BMC oral health · 2026Article
- Review
- Postpubertal Assessment of Treatment Timing in Class II Malocclusion Treated with Twin Block Followed by Fixed Appliances: A Retrospective Observational Study.Journal of clinical medicine · 2026Article
- Efficacy of clear functional orthodontic appliances versus traditional functional appliances in the treatment of Class II malocclusion: A systematic review and meta-analysis.Korean journal of orthodontics · 2026Article
- Clear aligners for Class II correction in growing patients: elastics vs mandibular advancement.The Angle orthodontist · 2026Article
- Do treatment outcomes of clear aligners remain stable over time? A systematic review.Journal of orthodontic science · 2026Review
- A comparative 3D finite element analysis of mandibular advancement with clear aligners and twin block appliances.BMC oral health · 2025Article
- Retrospective Evaluation of InvisalignDentistry journal · 2025Article
- Treatment of class II malocclusion and ectopic maxillary canines: A case report.World journal of clinical cases · 2025Article
- Comparison of the Skeletal and Dento-Alveolar Changes Obtained with a Customized Elastodontic Appliance and Twin Block: A Prospective Investigation.Children (Basel, Switzerland) · 2025Article
- Indications and limits of clear aligner therapy: an international modified Delphi consensus study.Progress in orthodontics · 2025Review
- Orthodontic Management of Class II Malocclusion with Clear Aligners: Mandibular Advancement vs. Class II Elastics.Children (Basel, Switzerland) · 2025Article
- Review
- A randomized clinical trial on innovative functional esthetic appliance for craniofacial growth modulation with 3D analysis of TMJ.Journal of dental research, dental clinics, dental prospects · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe twin block (TB) is one of the most widely used functional appliances for the correction of class II malocclusions. Align Technology (San Jose, CA, USA) developed the Invisalign® mandibular advancement (MA) that replicates the mechanism of action of a functional appliance. The aim of this study was to compare the changes produced by the TB versus those by MA.
methodsThe records of 56 class II patients treated with the TB (TB group: n = 35) or the MA (MA group: n = 21) were compared to a control sample of 15 untreated class II subjects (UC2).
resultsThe TB and MA groups showed a significant reduction of the ANB angle, compared to the controls (TB group: -1.5°; MA group: -1.5°; UC2 group: +0.2°). For the Co-Gn values, the TB and MA groups showed significant differences when compared with the UC2 group with an increase of 8.4 mm in TB patients and of 8.3 mm in MA patients. The increase of the distance of Pg to the true vertical line (TVL) was the only measurement where significant differences between the three groups were found with a greater advancement of the soft tissue pogonion in the TB group compared with the MA group and the UC2 group (TB group: +3 mm; MA group: +0.9 mm; UC2 group: -1.6 mm). The angle between the palatal plane and mandibular plane revealed a more relevant reduction in the TB and MA groups. Both appliances were able to reduce overjet and vertical overbite values.
conclusionsTreatment with the MA and TB appliances produced a significant elongation of the mandible with an improvement in sagittal relationship, overjet, and vertical overbite and with good control of the vertical relationship. TB subjects showed a greater advancement of the soft tissue chin.
Indexed as
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.