ArticleOrthodontics & craniofacial research2026
Effect of Staining and Cleaning Agents on the Colour Stability and Surface Roughness of Clear Aligners.
Article in Orthodontics & craniofacial research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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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
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Who cites it
1 citing paper in PubMed.
- Effect of Staining and Cleaning Agents on the Colour Stability and Surface Roughness of Clear Aligners.Orthodontics & craniofacial research · 2026Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
aimThis study aimed to evaluate the effects of various staining and cleaning agents on the colour stability and surface roughness of Invisalign aligners (Align Technology). MATERIALS AND
methods240 aligners were assigned to five staining groups (coffee, black tea, cola, red wine and distilled water). They were immersed daily for 15 min over 3 times per day. Each group was divided into six cleaning subgroups (Corexyl, Cleaning Crystals, Corega ProGuard, Corega, Toothpaste and distilled water). After 7 days, colour change and surface roughness were assessed from multiple regions using a spectrophotometer and profilometer. Regional measurements from the same aligner were averaged to obtain one representative value per aligner. Robust Two-Way ANOVA tested the effects of staining and cleaning agents.
resultsStaining agents significantly affected colour change (p < 0.001). Coffee caused the greatest discoloration, followed by tea and wine, while cola showed the lowest staining potential. All staining agents induced perceptible colour changes (∆E
conclusionsAligner discoloration differed according to beverage type, with coffee, tea and wine producing greater changes than cola. Corexyl and Cleaning Crystals showed comparatively favourable colour stability, whereas surface roughness changes were mainly related to staining agents. These findings highlight the multifactorial nature of aligner aesthetic changes.
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