ArticleMaterials (Basel, Switzerland)2020
Volumetric Changes in the Upper Airways after Rapid and Slow Maxillary Expansion in Growing Patients: A Case-Control Study.
Article in Materials (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 3 of them syntheses that pooled it.
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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.
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Who cites it
29 citing papers in PubMed, 3 syntheses or guidelines pooled it, 46 citations in OpenAlex.
- Orthodontic and Maxillofacial Surgery Treatment in Achondroplasia for Orofacial Alterations: A Systematic Review and Preliminary Age-Stratified Guidelines.Orthodontics & craniofacial research · 2026Pooled it
- Volumetric changes in the upper airway on CBCT after dentofacial orthopedic interventions - a systematic review.Clinical oral investigations · 2023Pooled it
- Relationship between Breastfeeding and Malocclusion: A Systematic Review of the Literature.Nutrients · 2020Pooled it
- Effects of clear aligner-based expansion screw and nickel-titanium palatal expander on airway dimensions and sleep parameters in unilateral cleft lip and palate patients: a randomized clinical trial.Sleep & breathing = Schlaf & Atmung · 2026Trial
- Effects of Herbst and Pendex appliances treatment on the upper airway: A cone-beam computed tomography analysis.American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics · 2026Article
- Effects of Andresen Activator on Pharyngeal Airway Volume in Growing Patients With Obstructive Sleep Apnea Syndrome: CBCT Evaluation.International journal of dentistry · 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
- Assessment of the Effect of Rapid Maxillary Expansion on Nasal Respiratory Function and Obstructive Sleep Apnea Syndrome in Children: A Systematic Review.Journal of clinical medicine · 2025Review
- Effects of Hyrax Maxillary Expander on Nasal Cavity and Upper Airway in Adolescents: A Systematic Review and Meta-Analysis.Healthcare (Basel, Switzerland) · 2024Review
- Three-Dimensional Assessment of Upper Airway Volume and Morphology in Patients with Different Sagittal Skeletal Patterns.Diagnostics (Basel, Switzerland) · 2024Article
- Upper Airway Dimensions among Different Skeletal Malocclusions: A Retrospective Observational Study by Cephalometric Analysis.Dentistry journal · 2024Article
- Comparing Airway Analysis in Two-Time Points after Rapid Palatal Expansion: A CBCT Study.Journal of clinical medicine · 2023Article
- Three-dimensional evaluation of the maxillary sinus in patients with different skeletal classes and cranio-maxillary relationships assessed with cone beam computed tomography.Scientific reports · 2023Article
- Unusual systemic and nondental effects of maxillary expansion therapy: A comprehensive and updated review of literature.Journal of orthodontic science · 2023Review
- Nasal Septum Changes in Adolescents Treated with Tooth-Borne and Bone-Borne Rapid Maxillary Expansion: A CBCT Retrospective Study Using Skeletal Tortuosity Ratio and Deviation Analysis.Children (Basel, Switzerland) · 2022Article
- Dimensional changes of upper airway after slow vs rapid miniscrew-supported maxillary expansion in adolescents: a cone-beam computed tomography study.BMC oral health · 2022Article
- A CBCT based analysis of the correlation between volumetric morphology of the frontal sinuses and the facial growth pattern in caucasian subjects. A cross-sectional study.Head & face medicine · 2022Article
- Infraocclusion: Prevalence, Characteristics, and Associated Dental Anomalies in Arabian Children.BioMed research international · 2022Article
- Short term effects of rapid maxillary expansion on breathing function assessed with spirometry: A case-control study.The Saudi dental journal · 2021Article
- Early Maxillary Expansion with the Ni-Ti Memory Leaf Expander-A Compliance-Free Fixed Slow Maxillary Expansion Screw: A Report of 2 Cases.Turkish journal of orthodontics · 2021Article
Corrections and comments
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Authors and funding
9 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The aim is to evaluate changes in the volume of the upper airways before and after slow maxillary expansion (SME) obtained with the flexible properties of a nickel titanium leaf spring and rapid maxillary expansion (RME) with a conventional Hyrax appliance in growing patients. The records of 1200 orthodontic patients undergoing maxillary expansion from 2018 to 2019 were analyzed; among these pre and post treatment CBCT scans of 22 patients (mean age 8.2 ± 0.6 years old) treated by SME were compared with those obtained from 22 patients (mean age 8.1 ± 0.7 years old) treated by RME banded on the second primary molars. The following inclusion criteria were used: Maxillary transverse constriction, good general health, and no previous orthodontic treatment. Volumes of nasal cavity (NCavV), nasopharynx (NsPxV), and right and left maxillary sinuses (MSV) were calculated with ITK-SNAP. Shapiro-Wilk test revealed a normal distribution of data in each group. Paired
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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.