Evaluation of Internal and Marginal Accuracy (Trueness and Precision) of Laminates Using DLP Printing and Milling Methods
This study evaluated the internal and marginal accuracy (trueness and precision) of zirconia laminate veneers fabricated using the DLP printing and milling method, employing 3D analysis software program. The maxillary central incisor tooth of a typodont model was prepared by a dentist and scanned us...
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MDPI AG
2025-01-01
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| Series: | Biomimetics |
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| author | Mijun Noh Habin Lee Wansun Lee Jaehong Kim Jihwan Kim |
| author_facet | Mijun Noh Habin Lee Wansun Lee Jaehong Kim Jihwan Kim |
| author_sort | Mijun Noh |
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| description | This study evaluated the internal and marginal accuracy (trueness and precision) of zirconia laminate veneers fabricated using the DLP printing and milling method, employing 3D analysis software program. The maxillary central incisor tooth of a typodont model was prepared by a dentist and scanned using a desktop scanner. An anatomical zirconia laminate was designed using computer-aided design (CAD) software and saved in a standard tessellation language (STL) format. Thirty zirconia laminates were manufactured using a milling machine (MLL group) and a DLP printer (PTL group). All the specimens were scanned, and their internal and marginal areas were edited accordingly. The root-mean-square value was used to assess the accuracy of the internal and marginal areas of the zirconia laminates. Statistical significance was evaluated using the Mann–Whitney U test. Statistically significant differences were found in RMS values for both groups in the internal and marginal areas (<i>p</i> < 0.001 and <i>p</i> = 0.034, respectively). The MLL and PTL groups differed significantly in terms of precision (<i>p</i> = 0.017), but not at the margin (<i>p</i> = 0.361). DLP-printed zirconia laminates demonstrated stable and consistent performance, making the technique a reliable option for producing esthetic prostheses. |
| format | Article |
| id | doaj-art-14166f8fff3540d58d6849d35e337349 |
| institution | Kabale University |
| issn | 2313-7673 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Biomimetics |
| spelling | doaj-art-14166f8fff3540d58d6849d35e3373492025-01-24T13:24:48ZengMDPI AGBiomimetics2313-76732025-01-011016710.3390/biomimetics10010067Evaluation of Internal and Marginal Accuracy (Trueness and Precision) of Laminates Using DLP Printing and Milling MethodsMijun Noh0Habin Lee1Wansun Lee2Jaehong Kim3Jihwan Kim4Department of Healthcare Sciences, Faculty of Dental Laboratory Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of KoreaDepartment of Healthcare Sciences, Faculty of Dental Laboratory Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of KoreaDepartment of Dental Technology, Graduate School, Bucheon University, 25 56th Street, Bucheon 14632, Republic of KoreaDepartment of Dental Laboratory Science, College of Health Science, Catholic University of Pusan, 57 Oryundae-ro, Geumjeong-gu, Busan 46252, Republic of KoreaDepartment of Healthcare Sciences, Faculty of Dental Laboratory Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of KoreaThis study evaluated the internal and marginal accuracy (trueness and precision) of zirconia laminate veneers fabricated using the DLP printing and milling method, employing 3D analysis software program. The maxillary central incisor tooth of a typodont model was prepared by a dentist and scanned using a desktop scanner. An anatomical zirconia laminate was designed using computer-aided design (CAD) software and saved in a standard tessellation language (STL) format. Thirty zirconia laminates were manufactured using a milling machine (MLL group) and a DLP printer (PTL group). All the specimens were scanned, and their internal and marginal areas were edited accordingly. The root-mean-square value was used to assess the accuracy of the internal and marginal areas of the zirconia laminates. Statistical significance was evaluated using the Mann–Whitney U test. Statistically significant differences were found in RMS values for both groups in the internal and marginal areas (<i>p</i> < 0.001 and <i>p</i> = 0.034, respectively). The MLL and PTL groups differed significantly in terms of precision (<i>p</i> = 0.017), but not at the margin (<i>p</i> = 0.361). DLP-printed zirconia laminates demonstrated stable and consistent performance, making the technique a reliable option for producing esthetic prostheses.https://www.mdpi.com/2313-7673/10/1/673D printingaccuracydigital light processinglaminatezirconia |
| spellingShingle | Mijun Noh Habin Lee Wansun Lee Jaehong Kim Jihwan Kim Evaluation of Internal and Marginal Accuracy (Trueness and Precision) of Laminates Using DLP Printing and Milling Methods Biomimetics 3D printing accuracy digital light processing laminate zirconia |
| title | Evaluation of Internal and Marginal Accuracy (Trueness and Precision) of Laminates Using DLP Printing and Milling Methods |
| title_full | Evaluation of Internal and Marginal Accuracy (Trueness and Precision) of Laminates Using DLP Printing and Milling Methods |
| title_fullStr | Evaluation of Internal and Marginal Accuracy (Trueness and Precision) of Laminates Using DLP Printing and Milling Methods |
| title_full_unstemmed | Evaluation of Internal and Marginal Accuracy (Trueness and Precision) of Laminates Using DLP Printing and Milling Methods |
| title_short | Evaluation of Internal and Marginal Accuracy (Trueness and Precision) of Laminates Using DLP Printing and Milling Methods |
| title_sort | evaluation of internal and marginal accuracy trueness and precision of laminates using dlp printing and milling methods |
| topic | 3D printing accuracy digital light processing laminate zirconia |
| url | https://www.mdpi.com/2313-7673/10/1/67 |
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