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Effects of Artificial Tooth Brushing and Hydrothermal Aging on the Mechanical Properties and Color Stability of Dental 3D Printed and CAD/CAM Materials

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dc.contributor.author김종은-
dc.contributor.author심준성-
dc.date.accessioned2021-12-28T17:15:48Z-
dc.date.available2021-12-28T17:15:48Z-
dc.date.issued2021-10-
dc.identifier.urihttps://ir.ymlib.yonsei.ac.kr/handle/22282913/187015-
dc.description.abstractThis study analyzed the surface roughness and waviness, Vickers hardness (VHN), and color changes of six types of 3D printed resins and computer-aided design/computer-aided manufacturing (CAD/CAM) materials after artificial toothbrushing. The average surface roughness height (Ra) change of Formlabs denture teeth A2 resin (FMLB) was not significant between after artificial toothbrushing (0.17 ± 0.02 μm and 0.17 ± 0.05 μm, respectively; mean ± standard deviation). However, the Ra value increased significantly in all remaining groups. Regarding waviness, polymethylmethacrylate (PMMA) had the largest increases in average waviness height (Wa) and maximum surface waviness height (Wz) between, before (0.43 ± 0.23 μm and 0.08 ± 0.02 μm), and after (8.67 ± 4.03 μm, 1.30 ± 0.58 μm) toothbrushing. There were no significant changes in Wa for Formlabs denture teeth A2 resin (FMLB) and NextDent C&B (NXT). After artificial toothbrushing, the dispersed-filler composite (DFC) group had the largest color difference (ΔE, of 2.4 ± 0.9), and the remaining materials had smaller changes than the clinical acceptance threshold of ΔE = 2.25. The VHN of FMLB and NXT were 9.1 ± 0.4 and 15.5 ± 0.4, respectively, and were not affected by artificial toothbrushing. The flexural strengths of the 3D printed materials were 139.4 ± 40.5 MPa and 163.9 ± 14.0 MPa for FMLB and NXT, respectively, which were similar to those of the polycarbonate and PMMA groups (155.2 ± 23.6 MPa and 108.0 ± 8.1 MPa, respectively). This study found that the evaluated 3D printed materials had mechanical and optical properties comparable to those of CAD/CAM materials and were stable even after artificial toothbrushing and hydrothermal aging.-
dc.description.statementOfResponsibilityopen-
dc.languageEnglish-
dc.publisherMDPI-
dc.relation.isPartOfMATERIALS-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.titleEffects of Artificial Tooth Brushing and Hydrothermal Aging on the Mechanical Properties and Color Stability of Dental 3D Printed and CAD/CAM Materials-
dc.typeArticle-
dc.contributor.collegeCollege of Dentistry (치과대학)-
dc.contributor.departmentDept. of Prosthodontics (보철과학교실)-
dc.contributor.googleauthorNa-Eun Nam-
dc.contributor.googleauthorSeung-Ho Shin-
dc.contributor.googleauthorJung-Hwa Lim-
dc.contributor.googleauthorJune-Sung Shim-
dc.contributor.googleauthorJong-Eun Kim-
dc.identifier.doi10.3390/ma14206207-
dc.contributor.localIdA00927-
dc.contributor.localIdA02211-
dc.relation.journalcodeJ02182-
dc.identifier.eissn1996-1944-
dc.identifier.pmid34683798-
dc.subject.keyword3D printing-
dc.subject.keywordCAD/CAM-
dc.subject.keywordadditive manufacture-
dc.subject.keywordartificial toothbrushing-
dc.subject.keyworddental materials-
dc.subject.keywordmechanical property-
dc.contributor.alternativeNameKim, Jong Eun-
dc.contributor.affiliatedAuthor김종은-
dc.contributor.affiliatedAuthor심준성-
dc.citation.volume14-
dc.citation.number20-
dc.citation.startPage6207-
dc.identifier.bibliographicCitationMATERIALS, Vol.14(20) : 6207, 2021-10-
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Prosthodontics (보철과학교실) > 1. Journal Papers

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