Trial reportThe Angle orthodontist2017
Pain and discomfort during the first week of rapid maxillary expansion (RME) using two different RME appliances: A randomized controlled trial.
Trial report in The Angle orthodontist, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 23 papers, 5 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.
Evaluation of Pain, Discomfort, and Functional Impairments During the Orthodontic Treatment of Skeletal Maxillary Constriction Using Rapid Versus Slow Maxillary Expansion in the Early Permeant Dentition: A Randomized Controlled Trial
Assessment of Patient-centered Outcomes Associated With the Expansion of Skeletally Constricted Upper Jaw in the Adolescents Using Two Types of Expanders: A Randomized Controlled Trial
Who cites it
23 citing papers in PubMed, 5 syntheses or guidelines pooled it, 49 citations in OpenAlex.
- Self-perceived pain in Hyrax versus other maxillary expansion orthodontic appliances: a systematic review of clinical studies.European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry · 2023Pooled it
- Comparison of rapid versus slow maxillary expansion on patient-reported outcome measures in growing patients: a systematic review and meta-analysis.Progress in orthodontics · 2022Pooled it
- Orthodontic treatment for posterior crossbites.The Cochrane database of systematic reviews · 2021Pooled it
- Effectiveness of orthodontic temporary anchorage devices in canine retraction and anchorage preservation during the two-step technique: a systematic review and meta-analysis.BMC oral health · 2020Pooled it
- Are there benefits from using bone-borne maxillary expansion instead of tooth-borne maxillary expansion? A systematic review with meta-analysis.Progress in orthodontics · 2019Pooled it
- Periodontal evaluation after maxillary expansion with a tooth-bone-borne expander in growing patients : A randomized clinical trial.Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie · 2026Trial
- Posterior crossbite corrections in the early mixed dentition with quad helix or rapid maxillary expander: a cost-effectiveness analysis of a randomized controlled trial.European journal of orthodontics · 2024Trial
- Pain and discomfort during the first week of maxillary expansion using two different expanders: patient-reported outcomes in a randomized controlled trial.European journal of orthodontics · 2023Trial
- Short-term assessment of pain and discomfort during rapid maxillary expansion with tooth-bone-borne and tooth-borne appliances: randomized clinical trial.Dental press journal of orthodontics · 2023Trial
- Mini Hyrax vs Hyrax expanders in the rapid palatal expansion in adolescents with posterior crossbite: a randomized controlled clinical trial.Progress in orthodontics · 2021Trial
- Transverse Maxillary Correction: Leaf Expander vs. Rapid Maxillary Expansion Appliances-A Systematic Review and Meta-Analysis.Children (Basel, Switzerland) · 2026Review
- Pain Experience During Rapid Maxillary Expansion: A Prospective Observational Study.Children (Basel, Switzerland) · 2026Article
- Validity and reliability of a questionnaire assessing Brazilian adolescents' experiences in orthodontic treatment.Brazilian oral research · 2026Article
- A novel electronic key-controlled expander for precise asymmetric palatal expansion.Frontiers in dental medicine · 2025Article
- Why does maxillary skeletal expansion work with some adults and fail with Others?: A narrative review.The Saudi dental journal · 2024Review
- Correlation Between Third Molar Mineralization and Midpalatal Suture Maturity: A Cone Beam Computed Tomography Study.Medical science monitor : international medical journal of experimental and clinical research · 2023Article
- Comparison of Different Types of Palatal Expanders: Scoping Review.Children (Basel, Switzerland) · 2023Article
- Pain during Rapid Maxillary Expansion: A Systematic Review.Children (Basel, Switzerland) · 2023Review
- Do patient-reported outcomes of miniscrew-supported maxillary expansion in adolescent patients differ between slow and rapid activation protocol?Evidence-based dentistry · 2023Article
- Article
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 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTo evaluate and compare perceived pain intensity, discomfort, and jaw function impairment during the first week with tooth-borne or tooth-bone-borne rapid maxillary expansion (RME) appliances. MATERIALS AND
methodsFifty-four patients (28 girls and 26 boys) with a mean age of 9.8 years (SD 1.28 years) were randomized into two groups. Group A received a conventional hyrax appliance and group B a hybrid hyrax appliance anchored on mini-implants in the anterior palate. Questionnaires were used to assess pain intensity, discomfort, analgesic consumption, and jaw function impairment on the first and fourth days after RME appliance insertion.
resultsFifty patients answered both questionnaires. Overall median pain on the first day in treatment was 13.0 (range 0-82) and 3.5 (0-78) for groups A and B, respectively, with no significant differences in pain, discomfort, analgesic consumption, or functional jaw impairment between groups. Overall median pain on the fourth day was 9.0 (0-90) and 2.0 (0-71) for groups A and B, respectively, with no significant differences between groups. There were also no significant differences in pain levels within group A, while group B scored significantly lower concerning pain from molars and incisors and tensions from the jaw on day 4 than on the first day in treatment. There was a significant positive correlation between age and pain and discomfort on the fourth day in treatment. No correlations were found between sex and pain and discomfort, analgesic consumption, and jaw function impairment.
conclusionsBoth tooth-borne and tooth-bone-borne RME were generally well tolerated by the patients during the first week of treatment.
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.