Marginal Misfit of 3D-Printed (Selective Laser Sintered), CAD-CAM and Lost Wax Technique Cobalt Chromium Copings with Shoulder and Chamfer Finish Lines: An In-Vitro Study
<i>Background and Objectives:</i> The aim was to compare the Misfit of 3D-Printed, Selective laser melting (SLM), milled (Computer aided design-Computer aided manufacture CAD-CAM) and Lost wax technique (LWT) fabricated Cobalt chromium (CoCr) alloy copings on shoulder (SH), radial should...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-09-01
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| Series: | Medicina |
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| Online Access: | https://www.mdpi.com/1648-9144/58/10/1313 |
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| author | Samar Al-Saleh Fahim Vohra Shabab M. Albogami Nawaf M. Alkhammash Mohammed A. Alnashwan Naif S. Almutairi Khalid A. Aali Mohammed Alrabiah Tariq Abduljabbar |
| author_facet | Samar Al-Saleh Fahim Vohra Shabab M. Albogami Nawaf M. Alkhammash Mohammed A. Alnashwan Naif S. Almutairi Khalid A. Aali Mohammed Alrabiah Tariq Abduljabbar |
| author_sort | Samar Al-Saleh |
| collection | DOAJ |
| description | <i>Background and Objectives:</i> The aim was to compare the Misfit of 3D-Printed, Selective laser melting (SLM), milled (Computer aided design-Computer aided manufacture CAD-CAM) and Lost wax technique (LWT) fabricated Cobalt chromium (CoCr) alloy copings on shoulder (SH), radial shoulder (R-SH) and chamfer (CH) finish line configuration. <i>Materials and Methods:</i> Ninety resin, second maxillary premolar teeth were prepared for metal-ceramic crowns, equally divided into (<i>n</i> = 30) SH, R-SH and CH margin preparations. For each preparation design (SH, R-SH and CH), CoCr copings were prepared using SLM, CAD-CAM and LWT. This resulted in nine study groups with 10 CoCr copings each. The marginal misfit of specimens was assessed with a high-resolution digital microscope. Misfit was evaluated in vertical and horizontal dimensions in μm. Data were analyzed using ANOVA and a post hoc multiple comparisons test. <i>Results:</i> For vertical misfit, the highest was observed in SLM samples with chamfer margin (167.96 ± 24.1), and the least was shown by CAD-CAM samples with radial shoulder (58.8 ± 12.53). CAD-CAM and shoulder margins showed the least vertical misfit. For horizontal misfit, the maximum was observed in SLM samples with shoulder margin (137.94 ± 37.85) and the least by LWT samples with chamfer (89.38 ± 14.81). Chamfer margins and LWT samples showed the least horizontal misfit among the group samples. Fabrication technique and finish line design play a critical role in reducing the marginal misfit of CoCr copings. <i>Conclusions:</i> For vertical misfit, SLM copings showed poor outcomes compared to CAD-CAM specimens, however comparable outcomes to Cast specimens. SLM copings showed comparable horizontal misfit outcomes to CAD-CAM specimens and low misfit compared to Cast copings, respectively. Vertical misfit was low with shoulder margins, and horizontal misfit was better with chamfer marginal configuration. |
| first_indexed | 2024-03-09T19:50:55Z |
| format | Article |
| id | doaj.art-1a022aa9b4604e1db12fecbab2999842 |
| institution | Directory Open Access Journal |
| issn | 1010-660X 1648-9144 |
| language | English |
| last_indexed | 2024-03-09T19:50:55Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Medicina |
| spelling | doaj.art-1a022aa9b4604e1db12fecbab29998422023-11-24T01:08:58ZengMDPI AGMedicina1010-660X1648-91442022-09-015810131310.3390/medicina58101313Marginal Misfit of 3D-Printed (Selective Laser Sintered), CAD-CAM and Lost Wax Technique Cobalt Chromium Copings with Shoulder and Chamfer Finish Lines: An In-Vitro StudySamar Al-Saleh0Fahim Vohra1Shabab M. Albogami2Nawaf M. Alkhammash3Mohammed A. Alnashwan4Naif S. Almutairi5Khalid A. Aali6Mohammed Alrabiah7Tariq Abduljabbar8Department of Prosthetic Dental Science, College of Dentistry, King Saud University, Riyadh 11545, Saudi ArabiaDepartment of Prosthetic Dental Science, College of Dentistry, King Saud University, Riyadh 11545, Saudi ArabiaDepartment of General Dentistry, College of Dentistry, King Saud University, Riyadh 11545, Saudi ArabiaDepartment of General Dentistry, College of Dentistry, King Saud University, Riyadh 11545, Saudi ArabiaDepartment of General Dentistry, College of Dentistry, King Saud University, Riyadh 11545, Saudi ArabiaDepartment of General Dentistry, College of Dentistry, King Saud University, Riyadh 11545, Saudi ArabiaDepartment of Prosthetic Dental Science, College of Dentistry, King Saud University, Riyadh 11545, Saudi ArabiaDepartment of Prosthetic Dental Science, College of Dentistry, King Saud University, Riyadh 11545, Saudi ArabiaDepartment of Prosthetic Dental Science, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia<i>Background and Objectives:</i> The aim was to compare the Misfit of 3D-Printed, Selective laser melting (SLM), milled (Computer aided design-Computer aided manufacture CAD-CAM) and Lost wax technique (LWT) fabricated Cobalt chromium (CoCr) alloy copings on shoulder (SH), radial shoulder (R-SH) and chamfer (CH) finish line configuration. <i>Materials and Methods:</i> Ninety resin, second maxillary premolar teeth were prepared for metal-ceramic crowns, equally divided into (<i>n</i> = 30) SH, R-SH and CH margin preparations. For each preparation design (SH, R-SH and CH), CoCr copings were prepared using SLM, CAD-CAM and LWT. This resulted in nine study groups with 10 CoCr copings each. The marginal misfit of specimens was assessed with a high-resolution digital microscope. Misfit was evaluated in vertical and horizontal dimensions in μm. Data were analyzed using ANOVA and a post hoc multiple comparisons test. <i>Results:</i> For vertical misfit, the highest was observed in SLM samples with chamfer margin (167.96 ± 24.1), and the least was shown by CAD-CAM samples with radial shoulder (58.8 ± 12.53). CAD-CAM and shoulder margins showed the least vertical misfit. For horizontal misfit, the maximum was observed in SLM samples with shoulder margin (137.94 ± 37.85) and the least by LWT samples with chamfer (89.38 ± 14.81). Chamfer margins and LWT samples showed the least horizontal misfit among the group samples. Fabrication technique and finish line design play a critical role in reducing the marginal misfit of CoCr copings. <i>Conclusions:</i> For vertical misfit, SLM copings showed poor outcomes compared to CAD-CAM specimens, however comparable outcomes to Cast specimens. SLM copings showed comparable horizontal misfit outcomes to CAD-CAM specimens and low misfit compared to Cast copings, respectively. Vertical misfit was low with shoulder margins, and horizontal misfit was better with chamfer marginal configuration.https://www.mdpi.com/1648-9144/58/10/1313misfitmarginal openinglost wax techniqueselective laser meltingCAD-CAM |
| spellingShingle | Samar Al-Saleh Fahim Vohra Shabab M. Albogami Nawaf M. Alkhammash Mohammed A. Alnashwan Naif S. Almutairi Khalid A. Aali Mohammed Alrabiah Tariq Abduljabbar Marginal Misfit of 3D-Printed (Selective Laser Sintered), CAD-CAM and Lost Wax Technique Cobalt Chromium Copings with Shoulder and Chamfer Finish Lines: An In-Vitro Study Medicina misfit marginal opening lost wax technique selective laser melting CAD-CAM |
| title | Marginal Misfit of 3D-Printed (Selective Laser Sintered), CAD-CAM and Lost Wax Technique Cobalt Chromium Copings with Shoulder and Chamfer Finish Lines: An In-Vitro Study |
| title_full | Marginal Misfit of 3D-Printed (Selective Laser Sintered), CAD-CAM and Lost Wax Technique Cobalt Chromium Copings with Shoulder and Chamfer Finish Lines: An In-Vitro Study |
| title_fullStr | Marginal Misfit of 3D-Printed (Selective Laser Sintered), CAD-CAM and Lost Wax Technique Cobalt Chromium Copings with Shoulder and Chamfer Finish Lines: An In-Vitro Study |
| title_full_unstemmed | Marginal Misfit of 3D-Printed (Selective Laser Sintered), CAD-CAM and Lost Wax Technique Cobalt Chromium Copings with Shoulder and Chamfer Finish Lines: An In-Vitro Study |
| title_short | Marginal Misfit of 3D-Printed (Selective Laser Sintered), CAD-CAM and Lost Wax Technique Cobalt Chromium Copings with Shoulder and Chamfer Finish Lines: An In-Vitro Study |
| title_sort | marginal misfit of 3d printed selective laser sintered cad cam and lost wax technique cobalt chromium copings with shoulder and chamfer finish lines an in vitro study |
| topic | misfit marginal opening lost wax technique selective laser melting CAD-CAM |
| url | https://www.mdpi.com/1648-9144/58/10/1313 |
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