ArticleThe Angle orthodontist2014
Upper airway changes after Xbow appliance therapy evaluated with cone beam computed tomography.
Article in The Angle orthodontist, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
9 citing papers in PubMed, 2 syntheses or guidelines pooled it, 30 citations in OpenAlex.
- Volumetric changes in the upper airway on CBCT after dentofacial orthopedic interventions - a systematic review.Clinical oral investigations · 2023Pooled it
- Orthodontic treatment for prominent upper front teeth (Class II malocclusion) in children and adolescents.The Cochrane database of systematic reviews · 2018Pooled it
- Correlation between different boundaries used in upper airway assessment.BMC oral health · 2025Article
- Article
- Three-dimensional skeletal and pharyngeal airway changes following therapy with functional appliances in growing skeletal Class II malocclusion patients : A controlled clinical trial.Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie · 2019Article
- Effect of Clark's twin-block appliance (CTB) and non-extraction fixed mechano-therapy on the pharyngeal dimensions of growing children.Dental press journal of orthodonticsArticle
- Cone beam computed tomography in assessment on pharynx effects of orthopedic-surgical treatment - a review of the literature.Sleep science (Sao Paulo, Brazil)Review
- Effect of functional appliances on the airway dimensions in patients with skeletal class II malocclusion: A systematic review.Journal of orthodontic scienceArticle
- Impact of different orthodontic treatment modalities on Airway: A literature review.Pakistan journal of medical sciencesReview
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo determine the treatment effects of the Xbow appliance on the upper airway dimensions and volume using cone-beam computed tomography (CBCT); to evaluate the cephalometric changes in the skeletal and dental structures of the skeletal Class II patients. MATERIALS AND
methodsThe sample consisted of 25 Class II patients (11 male, 14 female) with a mean age of 11.1 ± 1.1 years. CBCT images were obtained at the beginning of the treatment (T0) and after the debonding of the Xbow (T1).
resultsChanges in superior, middle, and inferior parts of the oropharynx in the retroglossal region and changes in the oropharyngeal airway volume were statistically significant (P < .05, P < .01). The differences favoring the Xbow for the changes in the direction of Class II correction included SNA, SNB, ANB, maxillary depth angles, and point A-NPg and Co-B distances. Data of the dental parameters showed palatal tipping and extrusion of the maxillary incisors, labial tipping of the mandibular incisors, and mesial movement and extrusion of the mandibular molars.
conclusionsTreatment with the Xbow appliance in Class II patients resulted in favorable increase in the oropharyngeal airway dimensions and volume. Further studies with larger study samples and with control groups are needed.
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