Trial reportThe Angle orthodontist2017
Discomfort associated with Invisalign and traditional brackets: A randomized, prospective 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 3 registered trials, which are not on this map. Cited by 99 papers, 6 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.
Impact of Photobiomodulation on Pain During Orthodontic Treatment
Evaluation of Discomfort Perceived by a Cohort of Patients Treated With Aligners and Attachments Placed According to Two Different Protocols. Single-blind Randomised Controlled Pilot Clinical Study
Evaluation of the Perceived Experience of Patients Treated With Aligners With Two Different Attachment Placement Times: Randomised Controlled Clinical Trial
Who cites it
99 citing papers in PubMed, 6 syntheses or guidelines pooled it.
- Comparative Impact of Clear Aligners and Traditional Fixed Appliances on Oral Health-Related Quality of Life: A Systematic Review and Meta-Analysis.Medicina (Kaunas, Lithuania) · 2026Pooled it
- Adverse effects of removable orthodontic aligners: A systematic review with single-arm meta-analysis.PloS one · 2026Pooled it
- Duration of orthodontic treatment with clear aligners versus fixed appliances in crowding cases: a systematic review.Clinical oral investigations · 2024Pooled it
- Comparison of pain intensity and impacts on oral health-related quality of life between orthodontic patients treated with clear aligners and fixed appliances: a systematic review and meta-analysis.BMC oral health · 2023Pooled it
- The efficacy of analgesics in controlling orthodontic pain: a systematic review and meta-analysis.BMC oral health · 2020Pooled it
- Pain level between clear aligners and fixed appliances: a systematic review.Progress in orthodontics · 2020Pooled it
- Skeletal and dentoalveolar effects on the midpalatal suture and maxillary arch assessed by occlusal radiographs and three-dimensional digital models in patients treated with invisalign palatal expander and rapid palatal expander: a pilot study.Frontiers in dental medicine · 2026Trial
- The effectiveness of orthodontic treatment with clear aligners in different thicknesses.Scientific reports · 2025Trial
- Patient compliance with braces vs. Invisalign®: a secondary data analysis from a randomized clinical trial.Journal of applied oral science : revista FOB · 2025Trial
- Impact of orthodontic treatment with aligners and fixed appliances on OHRQoL: a randomized clinical trial.Brazilian oral research · 2025Trial
- The Impact of Non-Extraction Orthodontic Treatment on the Oral-Health-Related Quality of Life between a Modified Aligner Appliance with Ni-Ti Springs and the Traditional Fixed Appliances: A Randomized Controlled Clinical Trial.Medicina (Kaunas, Lithuania) · 2024Trial
- Differences in finished case quality between Invisalign and traditional fixed appliances.The Angle orthodontist · 2022Trial
- Perceived pain during rapid maxillary expansion in children with different expanders.The Angle orthodontist · 2021Trial
- Buccolingual Inclination Control of Upper Central Incisors of Aligners: A Comparison with Conventional and Self-Ligating Brackets.BioMed research international · 2018Trial
- Debonding of Clear Aligner Attachments With Fluorescence-Aided Identification Technique (FIT): An In Vitro Study.The journal of adhesive dentistry · 2026Article
- A Comparison of Clear Aligners and Fixed Appliances in Orthodontic-Surgical Treatment of Non-Extraction Skeletal Class III Malocclusion.Aesthetic plastic surgery · 2026Article
- Review
- Article
- Orthodontic Need Among Adult Patients Seeking Oral Rehabilitation in Craiova.Journal of clinical medicine · 2026Article
- Does attachment removal damage enamel? Influence of adhesive, resin, and bur on surface integrity.European journal of oral sciences · 2026Article
39 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo evaluate differences in discomfort levels between patients treated with aligners and traditional fixed orthodontic appliances. MATERIALS AND
methodsThis blinded, prospective, randomized equivalence two-arm parallel trial allocated 41 adult Class I nonextraction patients to either traditional fixed appliance (6 males and 12 females) or aligner (11 males and 12 females) treatment. Patients completed daily discomfort diaries following their initial treatment appointment, after 1 month and after 2 months. They recorded their levels of discomfort at rest, while chewing, and while biting, as well as their analgesic consumption and sleep disturbances.
resultsBoth treatment modalities demonstrated similar levels of initial discomfort. There were no significant sex differences. Patients in the traditional fixed appliances group reported significantly (P < .05) greater discomfort than patients in the aligner group during the first week of active treatment. There was significantly more discomfort while chewing than when at rest. Traditional patients also reported significantly more discomfort than aligner patients after the first and second monthly adjustment appointments. Discomfort after the subsequent adjustments was consistently lower than after the initial bonding or aligner delivery appointments. A higher percentage of patients in the fixed-appliance group reported taking analgesics during the first week for dental pain, but only the difference on day 2 was statistically significant.
conclusionsPatients treated with traditional fixed appliances reported greater discomfort and consumed more analgesics than patients treated with aligners. This trial was not registered.
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.