Influence of polishing technique and coffee thermal cycling on the surface roughness and color stability of additively and subtractively manufactured resins used for definitive restorations

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dc.authoridDonmez, Mustafa Borga/0000-0002-3094-7487
dc.authoridCakmak, Gulce/0000-0003-1751-9207
dc.authoridAKAY, CANAN/0000-0003-2781-8710
dc.authorwosidCakmak, Gulce/GRE-6472-2022
dc.authorwosidDonmez, Mustafa Borga/AGY-6155-2022
dc.authorwosidAKAY, CANAN/F-8368-2015
dc.contributor.authorCakmak, Gulce
dc.contributor.authorOosterveen-Ruegsegger, Alice Lisa
dc.contributor.authorAkay, Canan
dc.contributor.authorSchimmel, Martin
dc.contributor.authorYilmaz, Burak
dc.contributor.authorDonmez, Mustafa Borga
dc.date.accessioned2024-05-19T14:38:51Z
dc.date.available2024-05-19T14:38:51Z
dc.date.issued2023
dc.departmentİstinye Üniversitesien_US
dc.description.abstractPurposeTo evaluate how different polishing techniques and coffee thermal cycling affect the surface roughness and stainability of additively and subtractively manufactured resins used for definitive prostheses. Materials and MethodsTwo additively manufactured composite resins (Crowntec, CT and VarseoSmile Crown Plus, VS) and a subtractively manufactured resin nanoceramic (Cerasmart, CS) were used to fabricate 90 rectangular-shaped specimens (14 x 12 x 1 mm) (n = 30). After baseline surface roughness (R-a) measurements, specimens were divided into three groups based on the polishing technique; conventional polishing with a 2-stage polishing kit (CP) and surface sealant application (Optiglaze, OG or Vita Akzent LC, VA) (n = 10). After polishing, specimens were subjected to 10,000 cycles of coffee thermal cycling. R-a and color coordinate measurements were performed after polishing and after coffee thermal cycling. Color difference (& UDelta;E-00) was calculated. Scanning electron microscope images were taken at each time interval. Kruskal-Wallis or 1-way analysis of variance (ANOVA) were used to evaluate R-a of materials within each polishing-time interval pair and different polishing techniques within each material-time interval pair, while Friedman or repeated measures ANOVA were used to evaluate R-a at different time intervals within each material-polishing pair. & UDelta;E-00 was assessed with 2-way ANOVA (& alpha; = 0.05). ResultsOther than VA-after polishing (p = 0.055), tested materials had significantly different R-a within each polishing-time interval pair (p & LE; 0.038). When R-a differences among different polishing techniques within each material-time interval pair were considered, CS had differences after coffee thermal cycling, CT had differences before polishing and after coffee thermal cycling, and VS had differences within each time interval (p & LE; 0.038). When R-a differences among different time intervals within each material-polishing pair were considered, significant differences were observed among all pairs (p & LE; 0.016), except for CS-VA (p = 0.695) and VS-VA (p = 0.300). & UDelta;E-00 values were affected by material and polishing technique interaction (p = 0.007). ConclusionsR(a) of CS was similar to or lower than the R-a of other materials, regardless of the time interval or polishing technique. CP mostly led to lower R-a than other polishing techniques, whereas VA resulted in a high R-a regardless of the material-time interval pair. Polishing reduced the R-a, while coffee thermal cycling was found to have a small effect. Among tested material-polishing pairs, only CS-VA had moderately unacceptable color change when previously reported threshold values were considered.en_US
dc.description.sponsorshipUniversitat Bernen_US
dc.description.sponsorshipGC Corporation and Vita Zahnfabrik are gratefully acknowledged for supplying the surface sealants used in this study. The authors would also like to thank Isabelle Hug for their help with the scanning electron microscope images. Open Access Funding provided by Universitat Bern.en_US
dc.identifier.doi10.1111/jopr.13730
dc.identifier.issn1059-941X
dc.identifier.issn1532-849X
dc.identifier.pmid37421940en_US
dc.identifier.scopus2-s2.0-85165415426en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org10.1111/jopr.13730
dc.identifier.urihttps://hdl.handle.net/20.500.12713/4630
dc.identifier.wosWOS:001030706300001en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWileyen_US
dc.relation.ispartofJournal of Prosthodontics-Implant Esthetic and Reconstructive Dentistryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmz20240519_kaen_US
dc.subjectAdditive Manufacturingen_US
dc.subjectCoffee Thermal Cyclingen_US
dc.subjectPolishingen_US
dc.subjectStainabilityen_US
dc.subjectSurface Roughnessen_US
dc.titleInfluence of polishing technique and coffee thermal cycling on the surface roughness and color stability of additively and subtractively manufactured resins used for definitive restorationsen_US
dc.typeArticleen_US

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