ArticleOdontology2026
Evaluation of the radiopacity of different universal composite resins aged by thermocycling.
Article in Odontology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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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
3 citing papers in PubMed.
- Comparative Radiopacity of Additively Manufactured Permanent and Temporary Resins and Conventional Resin-Based Composites.Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.] · 2026Article
- Radiopacity of contemporary flowable resin composites with different material formulations.BMC oral health · 2026Article
- Effect of thermal aging on the radiopacity of universal composite resins at two thickness levels.Clinical oral investigations · 2026Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The aim of this study is to evaluate the effects of thermocycling and material thickness on the radiopacity values of various universal composite resins. A total of 18 different composite resin materials were tested, including 7 single-shade, 6 polyshade, and 5 simply-shade composites. Disk-shaped specimens with a diameter of 5 mm and thicknesses of 1 mm and 2 mm were prepared from each material. Radiographic images of all specimens were taken alongside an aluminium step-wedge and tooth sections (enamel and dentin) of corresponding thickness. Using the ImageJ software, the mean gray values (MGV) of each specimen, the 15 steps of the aluminium wedge, and the enamel and dentin sections were measured. These values were converted into aluminium equivalents (mm Al). Differences among materials were analyzed using one-way ANOVA and Tukey's multiple comparison test, while differences related to thickness and aging were evaluated with two-way ANOVA and Tukey's test. The level of statistical significance was set at p < 0.05. All composite resin samples exhibited significantly higher radiopacity values than dentin (p < 0.05). The 2 mm thick samples showed greater radiopacity than those with 1 mm thickness (p = 0.000). The material with the highest radiopacity was Charisma Diamond. Among the 1 mm thick specimens before thermocycling, the lowest radiopacity was observed in Omnichroma. In other parameters, Clearfil Majesty ES-2 exhibited the lowest radiopacity values. All tested composite resins demonstrated higher radiopacity values compared to dentin and met the criteria set by the International Organization for Standardization (ISO). Material thickness significantly affected radiopacity. However, radiopacity values varied among materials after thermocycling through thermocycling.
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Registered trials
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