DC Field | Value | Language |
---|---|---|
dc.contributor.author | Vardhaman, Sonaj | ko |
dc.contributor.author | Borba, Marcia | ko |
dc.contributor.author | Kaizer, Marina R. | ko |
dc.contributor.author | Kim, Do Kyung | ko |
dc.contributor.author | Zhang, Yu | ko |
dc.date.accessioned | 2020-11-30T09:10:07Z | - |
dc.date.available | 2020-11-30T09:10:07Z | - |
dc.date.created | 2020-11-16 | - |
dc.date.issued | 2020-11 | - |
dc.identifier.citation | DENTAL MATERIALS, v.36, no.11, pp.1407 - 1417 | - |
dc.identifier.issn | 0109-5641 | - |
dc.identifier.uri | http://hdl.handle.net/10203/277760 | - |
dc.description.abstract | Objective. To characterize the composition, microstructure and wear properties of a multi layer translucent zirconia relative to the conventional 3Y-TZP. Methods. Two types of ceramics were evaluated: a multilayer zirconia (MULTI, IPS e.max ZirCAD Multi, Ivoclar Vivadent) and a control 3Y-TZP (IPS e.max ZirCAD LT, Ivoclar Vivadent). Pre-sintered CAD-CAM blocks were cut, ground, sintered and polished to 1 mu m finish. The phase fraction and grain size were measured using XRD and FE-SEM. For wear testing (n = 12), square-shaped specimens (16 x 16 x 1 mm) were adhesively bonded to a dentin analog. Sliding wear tests were performed using a spherical zirconia antagonist (r = 3.15 mm), with 30 N load at 1.5 Hz for 500,000 cycles in water. Optical and scanning electron microscopes and 3D laser scanner were used for quantitative wear analyses. Data were analyzed using Student's t-test (alpha = 0.05). Results. For MULTI, the enamel layer had the highest cubic content and the largest grain size, followed by the two transition layers, and the dentin layer. 3Y-TZP showed the smallest grain size and cubic content. A significant amount of wear was observed in both materials up to 50,000 cycles until it reached a plateau. MULTI showed higher volume loss and greater wear depth than 3Y-TZP (p < 0.01). The higher volume loss was associated with extensive lateral fracture, leading to material spalling from the surface of cubic-containing zirconias. Significance. The wear pattern in multi-layered zirconia was more severe than 3Y-TZP. Additionally, the different layers of the multi-layered zirconia had similar wear behavior. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.title | Wear behavior and microstructural characterization of translucent multilayer zirconia | - |
dc.type | Article | - |
dc.identifier.wosid | 000581540000008 | - |
dc.identifier.scopusid | 2-s2.0-85091205878 | - |
dc.type.rims | ART | - |
dc.citation.volume | 36 | - |
dc.citation.issue | 11 | - |
dc.citation.beginningpage | 1407 | - |
dc.citation.endingpage | 1417 | - |
dc.citation.publicationname | DENTAL MATERIALS | - |
dc.identifier.doi | 10.1016/j.dental.2020.08.015 | - |
dc.contributor.localauthor | Kim, Do Kyung | - |
dc.contributor.nonIdAuthor | Vardhaman, Sonaj | - |
dc.contributor.nonIdAuthor | Borba, Marcia | - |
dc.contributor.nonIdAuthor | Kaizer, Marina R. | - |
dc.contributor.nonIdAuthor | Zhang, Yu | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Ceramics | - |
dc.subject.keywordAuthor | Prostheses | - |
dc.subject.keywordAuthor | Occlusion | - |
dc.subject.keywordAuthor | Sliding contact | - |
dc.subject.keywordAuthor | Wear parameters | - |
dc.subject.keywordAuthor | Wear mechanisms | - |
dc.subject.keywordPlus | FATIGUE DAMAGE | - |
dc.subject.keywordPlus | GRAIN-SIZE | - |
dc.subject.keywordPlus | CONTACT | - |
dc.subject.keywordPlus | CERAMICS | - |
dc.subject.keywordPlus | MAPS | - |
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