ArticleThe Saudi dental journal2023
Comparison of mechanical properties and color stability of various vacuum-formed orthodontic retainers: An in vitro study.
Article in The Saudi dental journal, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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
6 citing papers in PubMed.
- Effects of carbonated drinks, alcoholic drinks and mouthwashes with varying pH on mechanical properties and colour stability of various thermoplastic retainers, aligners and occlusal splints: an in-vitro study.Dental press journal of orthodontics · 2026Article
- Color stability of clear aligners exposed to various beverages: an in vitro study.BMC oral health · 2025Article
- Optical Behavior of Clear Thermoplastic Dental Materials in a Simulated Oral Environment.Polymers · 2025Article
- Impact of simulated gastric acid on the physical and mechanical properties of vacuum-formed retainers: an in vitro study.BMC oral health · 2025Article
- Color Stability of Various Orthodontic Clear Aligner Systems after Submersion in Different Staining Beverages.Materials (Basel, Switzerland) · 2024Article
- Retention Force Comparison between Hawley and Vacuum-Formed Retainers in Orthodontic Treatment of Maxillary Arch: A Prospective, Non-randomized, Cohort Study over 6 Months : Comparing Retention Force of Hawley and Vacuum Formed Retainers.Galen medical journal · 2024Article
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
Vacuum-formed retainer (VFR) is the most used retainer due to its higher aesthetic properties and lower cost, their mechanical properties of are important in determining the stability and long-term use of appliances made out of them.
aimThis study aimed to evaluate and compare the flexural modulus, surface hardness, and color stability of three different VFR materials.
methodsThree different VFR materials, namely Duran, Keystone, and Zendura, of 1 mm thickness, were tested after thermoforming for flexural modulus, hardness, and color stability. They were formed over a stainless-steel model of 12 mm diameter and 6 mm height.
resultsThere were significant statistical differences (p = 0.000) in the flexural modulus and hardness of the three materials. Regarding color stability, Zendura exhibited significantly higher ΔE* values than Keystone and Duran (p < 0.05).
conclusionsZendura had the highest flexural modulus and hardness compared with Duran and Keystone; however, it is more susceptible to color change compared to the other tested materials.
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Registered trials
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