ArticleScientific reports2023
The effect of in-office bleaching agents on the Vickers hardness and surface topography of polished and unpolished CAD/CAM composite materials.
Article in Scientific reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Effect of in-office bleaching on surface roughness of additively versus subtractively manufactured tooth-colored materials used for fixed definitive prostheses.BMC oral health · 2026Article
- Comparative evaluation of different bleaching agents on the color stability, hardness and surface roughness of indirect esthetic restorative materials with different manufacturing methods.BMC oral health · 2025Article
- Article
- The Efficacy of 3 Bleaching Methods on Stained Polymer-Based CAD/CAM Materials.International dental journal · 2025Article
- Exploring the Properties and Indications of Chairside CAD/CAM Materials in Restorative Dentistry.Journal of functional biomaterials · 2025Review
- Effects of home bleaching agents on hybrid ceramics: mechanical properties and color change.BMC oral health · 2025Article
- Effects of immersion in various beverages, polishing and bleaching systems on surface roughness and microhardness of CAD/CAM restorative materials.BMC oral health · 2024Article
- Effects of Different Concentrations of Carbamide Peroxide on Color, Surface Roughness, and Hardness of CAD/CAM Dental Ceramics.Clinical and experimental dental research · 2024Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In-office bleaching, using hydrogen peroxide, is effective to remove dental enamel stains. However, bleaching agents can deteriorate surface properties of CAD-CAM materials. This in vitro study aimed to investigate the effect of in-office bleaching agents on Vickers hardness and surface topography of polished and unpolished dental CAD-CAM composite materials (Grandio blocs, Lava Ultimate, BRILLIANT Crios, Cerasmart), and a polymer-infiltrated ceramic network block (Vita Enamic). The specimens were randomly divided into two groups: unpolished or polished. The micro-hardness and surface topography of each group were measured before bleaching, after a 60 min bleaching period, and 24-h and one-month post-bleaching. In-office bleaching significantly influenced the Vickers hardness of both the polished and unpolished CAD/CAM composite blocks, with Vita Enamic exhibiting the least hardness stability among all groups. Furthermore, in-office bleaching significantly influenced the surface roughness of unpolished CAD/CAM composite blocks. There was a significant difference in hardness reduction between the polished and unpolished specimens for most of the investigated materials at different time points. The bleaching did not influence the surface roughness of the investigated polished group, except for Vita Enamic and Lava Ultimate. However, it did influence the surface roughness of the investigated materials in the unpolished group.
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