{"id":77029,"date":"2024-08-26T07:16:55","date_gmt":"2024-08-26T07:16:55","guid":{"rendered":"https:\/\/dgshape.com\/3d-printed-vs-milled-monolithic-zirconia-crowns\/"},"modified":"2026-01-19T13:23:19","modified_gmt":"2026-01-19T13:23:19","slug":"3d-printed-vs-milled-monolithic-zirconia-crowns","status":"publish","type":"post","link":"https:\/\/dgshape.com\/emea\/3d-printed-vs-milled-monolithic-zirconia-crowns\/","title":{"rendered":"3D-Printed vs Milled Monolithic Zirconia Crowns"},"content":{"rendered":"\t\t
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An extraordinary study of epoch-making importance: the first to scientifically validate the accuracy of margin closures and occlusion of whole crowns fabricated\u00a0with<\/span><\/em><\/strong>DGSHAPE DWX-52D Plus<\/a><\/span><\/strong><\/em><\/p>

Henriette Lerner, Katalin Nagy, Nicola Pranno, Fernando Zarone, Oleg Admakin, Francesco Mangano.
Trueness and precision of 3D-printed versus milled monolithic zirconia crowns: An in vitro study.
Journal of Dentistry, 2021, 103792, ISSN 0300-5712<\/span>
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\"front_view_dwx_52d_plus_dental_milling_machine\"<\/figure><\/div>
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Abstract: Purpose\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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To compare the trueness and precision of 3D-printed versus milled monolithic zirconia crowns (MZCs).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Methods<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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A model of a maxilla with a prepared premolar was scanned with an industrial scanner (ATOSQ\u00ae, Gom), and an MZC was designed in computer-assisted-design (CAD) software (DentalCad\u00ae, Exocad).<\/p>\n

From that standard tessellation language (STL) file, 10 MZCs (test) were 3D-printed with a Lithography-based Ceramic Manufacturing (LCM) printer (CerafabS65\u00ae, Lithoz), and 10 MZCs (control) were milled using a 5-axis machine (DWX-52D\u00ae, DGShape).<\/p>\n

All MZCs were sintered and scanned using the scanner above.<\/p>\n

The surface data of each sample (overall crown, marginal area, occlusal surface) were superimposed to the original CAD file (ControlX\u00ae, Geomagic) to evaluate trueness: (90-10)\/2, absolute average (ABS AVG) and root mean square (RMS) values were obtained for test and control groups (MathLab\u00ae, Mathworks) and used for analysis.<\/p>\n

Finally, the clinical precision (marginal adaptation, interproximal contacts) of test and control MZCs was investigated on a split-cast model printed (Solflex350\u00ae, Voco) from the CAD project and compared.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Results<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The milled MZCs had significantly higher trueness than the 3D-printed ones<\/strong>, overall [(90-10)\/2 printed 37.8\u202f\u00b5m vs. milled 21.2\u202f\u00b5m; ABS AVG printed 27.2\u202f\u00b5m vs. milled 15.1\u202f\u00b5m; RMS printed 33.2\u202f\u00b5m vs. milled 20.5\u202f\u00b5m; p\u202f=\u202f0.000005], at the margins [(90-10)\/2 printed 25.6\u202f\u00b5m vs. milled 12.4\u202f\u00b5m; ABS AVG printed 17.8\u202f\u00b5m vs. milled 9.4\u202f\u00b5m; RMS printed 22.8\u202f\u00b5m vs. milled 15.6\u202f\u00b5m; p= 0.000011] and at the occlusal level [(90-10)\/2 printed 50.4\u202f\u00b5m vs. milled 21.9\u202f\u00b5m; ABS AVG printed 29.6\u202f\u00b5m vs. milled 14.7\u202f\u00b5m; RMS printed 38.9\u202f\u00b5m vs. milled 22.5\u202f\u00b5m; p\u202f=\u202f0.000005].<\/p>

However, regarding precision, both test and control groups scored highly, with no significant difference in the quality of interproximal contact points (p\u202f=\u202f0.355) or marginal closure (p\u202f=\u202f0.355).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Conclusions<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Milled MZCs had statistically higher trueness than 3D-printed ones; however, all crowns showed high precision, compatible with clinical use.
Clinical significance
Although milled MZCs remain more accurate than 3D-printed ones, the LCM technique seems able to guarantee the production of clinically precise zirconia crowns.
Keywords: Monolithic zirconia crowns; 3D printing; Milling; Trueness; Clinical precision<\/p>\n

(https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0300571221002153<\/span><\/span><\/a>)<\/p>\n

https:\/\/doi.org\/10.1016\/j.jdent.2021.103792<\/p>\n

View and download PDF<\/p>\n

https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0300571221002153\/pdfft?md5=1f32d64ffd2c6b5f35bb11bc7e87c09b&pid=1-s2.0-S0300571221002153-main.pdf<\/a><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Details of the 3D-printed and milled monolithic zirconia crowns (MZCs). In total, 20 samples <\/span>were manufactured<\/span>. Ten MZCs (test group, left of the picture) were 3D printed with a lithography-based ceramic manufacturing (LCM) printer (Cerafab S65\u00ae, Lithoz, Vienna, Austria). The other 10 MZCs (control group, right of the picture) <\/span>were milled<\/span> with a 5-axis milling machine (<\/span>DWX-52D\u00ae, DGSHAPE, A Roland DG Company, Hamamatsu, Japan<\/span><\/strong>). All crowns were sintered following the manufacturer\u2019s recommendation and were ready for analysis. <\/span>Different colors were used<\/span> to facilitate the allocation of the samples in the correct group, eliminating any risk of confusion. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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As it works toward future business expansion, DGSHAPE is promoting activities to reach the mid-term objectives of \u201c<\/span>strengthening the ability to support new dental materials<\/span><\/strong>,\u201d \u201c<\/span>acceleration of global expansion<\/span><\/strong>,\u201d and\u00a0<\/span>\u201c<\/span>developing high value-added solutions for the dental industry<\/span><\/strong>\u201c<\/span>\u00a0In the dental market<\/span>, an essential requirement for DGSHAPE is to support new materials. Therefore, we pay close attention to the new product offerings of material manufacturers and the needs of patients and dental clinics to offer optimal processing methods as quickly as possible.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Check out our DWX lineup here and discover more on website<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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DGSHAPE
\nSOLUTIONS FOR<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Dental Clinic<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tLEARN MORE<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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DGSHAPE
\n SOLUTIONS FOR<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Dental
\nLaboratory<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tLEARN MORE<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

An extraordinary study of epoch-making importance: the first to scientifically validate the accuracy of margin closures and occlusion of whole crowns fabricated\u00a0withDGSHAPE DWX-52D Plus Henriette Lerner, Katalin Nagy, Nicola Pranno, Fernando Zarone, Oleg Admakin, Francesco Mangano.Trueness and precision of 3D-printed versus milled monolithic zirconia crowns: An in vitro study.Journal of Dentistry, 2021, 103792, ISSN 0300-5712 […]<\/p>\n","protected":false},"author":11,"featured_media":77031,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[302],"tags":[],"class_list":["post-77029","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-scientific-articles"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/dgshape.com\/emea\/wp-json\/wp\/v2\/posts\/77029","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dgshape.com\/emea\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dgshape.com\/emea\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dgshape.com\/emea\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/dgshape.com\/emea\/wp-json\/wp\/v2\/comments?post=77029"}],"version-history":[{"count":1,"href":"https:\/\/dgshape.com\/emea\/wp-json\/wp\/v2\/posts\/77029\/revisions"}],"predecessor-version":[{"id":79320,"href":"https:\/\/dgshape.com\/emea\/wp-json\/wp\/v2\/posts\/77029\/revisions\/79320"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dgshape.com\/emea\/wp-json\/wp\/v2\/media\/77031"}],"wp:attachment":[{"href":"https:\/\/dgshape.com\/emea\/wp-json\/wp\/v2\/media?parent=77029"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dgshape.com\/emea\/wp-json\/wp\/v2\/categories?post=77029"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dgshape.com\/emea\/wp-json\/wp\/v2\/tags?post=77029"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}