Implant-cemented Co-Cr frameworks produced by hard and soft milling: The impact of porcelain firing cycles on microstructure and fit accuracy.
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| Název: | Implant-cemented Co-Cr frameworks produced by hard and soft milling: The impact of porcelain firing cycles on microstructure and fit accuracy. |
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| Autoři: | Nikolopoulos M; Division of Dental Technology, Department of Biomedical Sciences, University of West Attica, Athens, Greece., Dimitriadis K; Division of Dental Technology, Department of Biomedical Sciences, University of West Attica, Athens, Greece., Yannikakis S; Division of Dental Technology, Department of Biomedical Sciences, University of West Attica, Athens, Greece., Sfikas AK; Experimental Techniques Centre, Brunel University London, Uxbridge, UK., Galiatsatos A; Division of Dental Technology, Department of Biomedical Sciences, University of West Attica, Athens, Greece., Tsolka P; Division of Dental Technology, Department of Biomedical Sciences, University of West Attica, Athens, Greece. |
| Zdroj: | European journal of oral sciences [Eur J Oral Sci] 2025 Oct; Vol. 133 (5), pp. e70031. Date of Electronic Publication: 2025 Jul 17. |
| Způsob vydávání: | Journal Article |
| Jazyk: | English |
| Informace o časopise: | Publisher: Wiley-Blackwell Country of Publication: England NLM ID: 9504563 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1600-0722 (Electronic) Linking ISSN: 09098836 NLM ISO Abbreviation: Eur J Oral Sci Subsets: MEDLINE |
| Imprint Name(s): | Publication: Chichester : Wiley-Blackwell Original Publication: Copenhagen : Munksgaard, c1995- |
| Výrazy ze slovníku MeSH: | Dental Porcelain*/chemistry , Chromium Alloys*/chemistry , Dental Prosthesis Design* , Dental Prosthesis, Implant-Supported* , Cementation*/methods, Microscopy, Electron, Scanning ; X-Ray Microtomography ; X-Ray Diffraction ; Materials Testing ; Spectrometry, X-Ray Emission ; Humans ; Dental Marginal Adaptation ; Surface Properties |
| Abstrakt: | This study examines how porcelain firing cycles and fabrication methods impact the microstructure and the marginal and internal fit of implant-cemented Co-Cr frameworks. Two fabrication processes for Co-Cr specimens were used: hard milling or soft milling. Each type of framework was then allocated to use either as-fabricated or as porcelain-fired. The microstructural analysis employed x-ray diffraction (XRD) and scanning electron microscopy with energy-dispersive x-ray spectroscopy (SEM/EDX). A total of ten Co-Cr frameworks were fabricated for each method, and discrepancies in margin and internal fit were evaluated using X-ray microtomography (micro-CT) before and after the porcelain firing. Statistical analysis was performed using two-way ANOVA and Tukey's multiple comparison tests (α = 0.05). The findings indicated a combination of γ-fcc and ε-hcp cobalt-based phases, with porcelain firing notably enhancing the ε-Co content, particularly among soft milled specimens. Soft milled specimens exhibited a diffuse presence of pores, while hard milled specimens revealed a random distribution of small pores. The soft milled specimens exhibited a significant reduction in discrepancies after the application of firing cycles. Although not statistically significant, the hard milled specimens also showed a trend toward reduced discrepancies post-firing. All subgroups maintained clinically acceptable marginal adaptation, with soft milled frameworks outperforming their hard milled counterparts in overall fit. (© 2025 The Author(s). European Journal of Oral Sciences published by John Wiley & Sons Ltd on behalf of Scandinavian Division of the International Association for Dental Research.) |
| References: | PLoS One. 2023 Oct 24;18(10):e0275374. (PMID: 37874843) J Prosthodont. 2015 Jun;24(4):291-5. (PMID: 25219401) J Prosthet Dent. 2015 Jul;114(1):52-8. (PMID: 25858218) J Prosthet Dent. 2014 Dec;112(6):1432-6. (PMID: 25218032) J Prosthet Dent. 2018 Feb;119(2):257-262. (PMID: 28545869) J Prosthet Dent. 2018 Jan;119(1):75-81. (PMID: 28461045) Acta Biomater. 2009 Feb;5(2):770-5. (PMID: 18845491) J Prosthet Dent. 2021 Jul;126(1):130.e1-130.e7. (PMID: 34034899) J Prosthodont. 2008 Dec;17(8):621-6. (PMID: 18798783) J Prosthet Dent. 2018 Nov;120(5):715-720. (PMID: 30017153) Dent Mater. 2008 Oct;24(10):1311-5. (PMID: 18384869) J Prosthet Dent. 2015 Nov;114(5):680-5. (PMID: 26182851) J Adv Prosthodont. 2014 Apr;6(2):138-45. (PMID: 24843400) J Prosthodont Res. 2019 Jan;63(1):40-46. (PMID: 29891419) BMC Oral Health. 2024 Jul 26;24(1):845. (PMID: 39060942) Odontology. 2024 Apr;112(2):372-389. (PMID: 37642767) J Prosthet Dent. 2015 Jun;113(6):623-7. (PMID: 25794918) J Prosthodont. 2019 Mar;28(3):315-320. (PMID: 30667169) J Prosthodont Res. 2018 Jan;62(1):56-64. (PMID: 28663024) Biochem Med (Zagreb). 2021 Feb 15;31(1):010502. (PMID: 33380887) J Prosthet Dent. 1991 Mar;65(3):436-42. (PMID: 2056466) J Prosthet Dent. 2019 Jun;121(6):879-886.e4. (PMID: 30661882) J Prosthet Dent. 2009 Oct;102(4):253-9. (PMID: 19782828) PLoS One. 2024 Apr 16;19(4):e0301799. (PMID: 38625846) J Prosthet Dent. 2017 Nov;118(5):672-677. (PMID: 28385435) Eur J Oral Sci. 2025 Oct;133(5):e70031. (PMID: 40676910) Int J Dent. 2014;2014:783948. (PMID: 24817888) J Prosthet Dent. 2015 Aug;114(2):223-8. (PMID: 25882975) J Prosthet Dent. 2017 May;117(5):656-661. (PMID: 27881325) Dent Clin North Am. 2022 Oct;66(4):567-590. (PMID: 36216447) J Prosthet Dent. 2021 Mar;125(3):504.e1-504.e6. (PMID: 33551136) J Prosthet Dent. 2015 Feb;113(2):135-9. (PMID: 25444279) J Dent. 2012 Oct;40(10):866-72. (PMID: 22819954) J Prosthet Dent. 2020 Oct;124(4):476.e1-476.e6. (PMID: 32451142) J Prosthodont. 2019 Dec;28(9):1029-1036. (PMID: 30912204) C R Hebd Seances Acad Sci. 1949 Feb 14;228(7):572-4. (PMID: 18118496) J Indian Prosthodont Soc. 2017 Oct-Dec;17(4):373-380. (PMID: 29249881) J Prosthet Dent. 2016 Sep;116(3):368-74. (PMID: 27130177) J Prosthet Dent. 2015 Oct;114(4):602-8. (PMID: 25979449) J Prosthodont Res. 2019 Apr;63(2):150-156. (PMID: 30642700) J Prosthet Dent. 2022 Mar;127(3):489-496. (PMID: 33303192) Dent Mater. 2012 Aug;28(8):e99-109. (PMID: 22595741) J Prosthet Dent. 2017 Mar;117(3):393-399. (PMID: 27677219) |
| Contributed Indexing: | Keywords: CAD/CAM; internal fit; marginal fit; metal–ceramics; subtractive manufacturing |
| Substance Nomenclature: | 12001-21-7 (Dental Porcelain) 0 (Chromium Alloys) |
| Entry Date(s): | Date Created: 20250718 Date Completed: 20250918 Latest Revision: 20250920 |
| Update Code: | 20250920 |
| PubMed Central ID: | PMC12445835 |
| DOI: | 10.1111/eos.70031 |
| PMID: | 40676910 |
| Databáze: | MEDLINE |
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