Trial reportThe Angle orthodontist2022
Long-term assessment of conventional and mini-screw-assisted rapid palatal expansion on the nasal cavity.
Trial report in The Angle orthodontist, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis 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
10 citing papers in PubMed, 1 synthesis or guideline pooled it.
- The short- and long-term changes of upper airway and alar in nongrowing patients treated with Mini-Implant Assisted Rapid Palatal Expansion (MARPE): a systematic review and meta-analysis.BMC oral health · 2023Pooled it
- Skeletal displacements and upper airway changes following tooth-borne and tooth-bone-borne rapid palatal expansion in adolescents: secondary analysis of a randomized clinical trial.BMC oral health · 2026Trial
- Skeletal and Dentoalveolar Components of Maxillary Expansion: A Systematic Review of Post-Treatment Stability.Children (Basel, Switzerland) · 2026Review
- Bone-Screw-Force Interactions in Palatal Orthodontic Mini-Implants: A Scoping Review and Decision Framework for Primary Stability and Biomechanically Driven Site Selection.Journal of functional biomaterials · 2026Review
- Investigation of the Effects of Tooth-Borne, Tooth-Bone-Borne and Bone-Borne Rapid Maxillary Expansion Appliances on the Nasomaxillary Complex Using CBCT.Turkish journal of orthodontics · 2026Article
- Immediate 3D Skull Changes Following 3D-Guided Midpalatal Piezocorticotomy-Assisted MARPE: Case Report.Dentistry journal · 2026Article
- Relationship Between Maxillary Transverse Deficiency and Respiratory Problems: A Systematic Review of the Effectiveness of Devices over the Past Decade.Journal of clinical medicine · 2025Review
- Periodontal Health Outcomes Following Mini-Screw-Assisted Rapid Palatal Expansion Versus Surgically Assisted Rapid Palatal Expansion: A Comparative Analysis.Journal of pharmacy & bioallied sciences · 2025Article
- Article
- Evolution, current status, and future trends of maxillary skeletal expansion: a bibliometric analysis.Clinical oral investigations · 2023Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTo evaluate the long-term effects of mini-screw-assisted rapid palatal expansion (MARPE), rapid palatal expansion (RPE), and controls on the nasal cavity with cone-beam computed tomography (CBCT). MATERIALS AND
methodsA total of 180 CBCT scans that were part of a previous randomized trial were evaluated retrospectively for 60 patients at pretreatment (T1), postexpansion (T2), and posttreatment (T3). Patients were randomly assigned into 3 groups: MARPE, RPE, and controls (time period T1 to T3; MARPE: 2 years 8 months; RPE: 2 years 9 months; control: 2 years 7 months). Nasal height, nasal length, nasion-ANS height, ANS-PNS length, pyriform height, and nasal septal deviation angle were measured. The changes in alar width, alar base width, anterior nasal cavity width, posterior nasal cavity width, maxillary intermolar width, and maxillary intercanine width were also evaluated.
resultsThe alar base width, posterior nasal cavity width, anterior nasal cavity width, maxillary intercanine width, and maxillary intermolar width significantly increased (P < .05), and the nasal septal deviation angle significantly decreased (P < .05) in both the MARPE and RPE groups as compared with controls in the short term. In the long term, the nasal septal deviation angle was significantly decreased (P < .05) in the MARPE and RPE groups as compared with controls, and the posterior nasal cavity width was significantly increased (P < .05) in the MARPE group compared with the RPE group and controls.
conclusionsMARPE and RPE led to a significant increase in the nasal cavity and alar base width compared with controls in the short term. In the long term, a significant increase was observed only in the posterior nasal cavity width with MARPE. Both MARPE and RPE led to a minimal decrease in nasal septal deviation angle in comparison with controls.
Indexed as
Identifiers
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.