Surface roughness and stainability of new-generation denture base materials after brushing and coffee thermocycling

Disk-shaped specimens were prepared from additively (NX and DT), subtractively (MZ), and conventionally manufactured denture base resins (CV). Surface roughness and color coordinates were measured after polishing, simulated brushing, and coffee thermocycling, while surface roughness was also measure...

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Published inJournal of materials research Vol. 39; no. 13; pp. 1862 - 1872
Main Authors Çakmak, Gülce, Donmez, Mustafa Borga, de Paula, Marcella Silva, Akay, Canan, Chavan, Amit, Schimmel, Martin, Yilmaz, Burak
Format Journal Article
LanguageEnglish
Published Cham Springer International Publishing 15.07.2024
Springer Nature B.V
Subjects
Applied and Technical Physics
Biomaterials
Brushing
CAD
CAD/CAM
CAM
Chemistry and Materials Science
Computer aided design
Computer aided manufacturing
Computer aided testing
Dental materials
Dentures
Inorganic Chemistry
Invited Paper
Materials Engineering
Materials Science
Nanotechnology
Polishing
Prostheses
Resins
Surface properties
Surface roughness
Thermal cycling
Brushing
Surface roughness
Coffee thermocycling
3D-printing
Denture base
Color stability
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Summary:Disk-shaped specimens were prepared from additively (NX and DT), subtractively (MZ), and conventionally manufactured denture base resins (CV). Surface roughness and color coordinates were measured after polishing, simulated brushing, and coffee thermocycling, while surface roughness was also measured before polishing. Polishing reduced the surface roughness of all materials. Brushing and coffee thermocycling increased the surface roughness of only DT. CV had the highest susceptibility to consecutive brushing and coffee thermocycling as it had the highest surface roughness, which was above the clinically acceptable threshold. All materials had similar stainability; only MZ had perceptible color change after brushing. Even though stainability of tested denture base resins was similar, additively or subtractively manufactured computer-aided design and computer-aided manufacturing (CAD-CAM) resins had smoother surfaces after brushing and coffee thermocycling, regardless of the material. Therefore, complete dentures made out of these CAD-CAM resins may have favorable surface properties in the long term. Graphical abstract
ISSN:0884-2914
2044-5326
DOI:10.1557/s43578-022-00798-6