Trial reportEuropean journal of orthodontics2025
Long-term comparison of maxillary protraction with hybrid hyrax-facemask vs. hybrid hyrax-mentoplate protocols using Alt-RAMEC: a 5-year randomized controlled trial.
Trial report in European journal of orthodontics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02711111 (Effect of Bone-anchored Protraction on Maxillary Growth in the Young Child), which is not on this map. Cited by 7 papers, 1 of them a synthesis 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.
Effect of Bone-anchored Protraction on Maxillary Growth in the Young Child
Who cites it
7 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Ultrasonic-assisted minimally invasive sarpe and mandibular skeletal anchorage for treatment of class III dentofacial anomalies: a non-endoscopic, minimally invasive approach - systematic review and case series of 10 patients.Oral and maxillofacial surgery · 2026Pooled it
- Long-term three-dimensional skeletal effects of hybrid hyrax with facemask versus mentoplate in growing Class III patients: a randomized controlled trial.Progress in orthodontics · 2025Trial
- Skeletal and Dentoalveolar Components of Maxillary Expansion: A Systematic Review of Post-Treatment Stability.Children (Basel, Switzerland) · 2026Review
- Review
- Long-Term Outcomes of Class III Malocclusion Interception With Maxillary Expansion and Protraction: A 9-Year Follow-Up Case Report.Case reports in dentistry · 2026Article
- Evaluating the Predictive Potential of Patient-Specific Biomechanical Models in Class III Protraction Therapy.Bioengineering (Basel, Switzerland) · 2025Article
- Correction to: Long-term three-dimensional skeletal effects of hybrid hyrax with facemask versus mentoplate in growing Class III patients: a randomized controlled trial.Progress in orthodontics · 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
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe study aimed to compare the short- and long-term effectiveness of hybrid Hyrax (HH) -Facemask (FM) and HH-mentoplate (MP) treatment protocols for maxillary protraction using Alt-RAMEC.
methodsA single-center 2-arm parallel randomized controlled trial. Participants: 28 skeletal class III patients (female: 14, male: 14; average age: 9.7 ± 1.3 years;) were included. Interventions: Two treatment groups where protraction therapy was combined with Alt-RAMEC. Group 1: Facemask group (Hybrid Hyrax + Facemask) and Group 2: Mentoplate group (Hybrid Hyrax + Mentoplate). Objective: To compare skeletal and dental changes between groups using low dose computed tomography (CT) scan from which virtual lateral cephalograms were generated. Outcome: Outcomes include changes in Wits appraisal (primary outcome), and cephalometric analysis of skeletal and dental changes (secondary outcomes) at 1 year and 5 years after treatment initiation. Randomization: 28 patients were allocated to either treatment-protocols using sequentially numbered opaque, sealed envelopes. The randomization sequence was generated with a 1:1 allocation ratio. Blinding: Due to the nature of the trial, the operator and children could not be blinded to the treatment allocation. However, blinding was used when assessing the outcomes.
resultsFollow-up: one patient was lost at the one-year follow-up and an additional three patients were lost at the 5-year follow-up. Outcomes: Both treatment protocols effectively improved intermaxillary relationship. Wits measurements showed improvements of 4.42 mm (FM) and 2.86 mm (MP) at T1, decreasing slightly to 3.33 mm (FM) and 1.50 mm (MP) at T2. While vertical control and incisor inclination were comparable between groups long-term, short-term differences were noted in upper and lower incisor inclination. Results remained equally stable after five years (T2). Harms: minor harms were encountered with the anchor hooks (fracture or mucosal irritation), however none led to treatment cessation.
conclusionsEarly class III treatment with HH + MP provided similar outcomes and stability to that of HH + FM suggesting that the choice between FM and MP should be based on individual patient factors rather than presumed mechanical advantages.
trial registrationClinical Trials ID: NCT02711111.
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