A Comparative Analysis of the Accuracy of Crown Fabricated from Conventional Wax Patterns and CAD/CAM Technology – Milling and 3D Printing

Background: Digital manufacturing techniques such as milling (subtractive) and 3D printing (additive) are increasingly used in dental restorations. These technologies promise enhanced precision and efficiency compared to traditional methods. However, the accuracy of marginal and internal fits of cro...

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Main Authors: MV Sunil Kumar, Rajesh Kumar, Ravindher Singh Saini, Rajesh Vyas, Sunil Kumar Vaddamanu
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2024-12-01
Series:Journal of Pharmacy and Bioallied Sciences
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Online Access:https://journals.lww.com/10.4103/jpbs.jpbs_985_24
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author MV Sunil Kumar
Rajesh Kumar
Ravindher Singh Saini
Rajesh Vyas
Sunil Kumar Vaddamanu
author_facet MV Sunil Kumar
Rajesh Kumar
Ravindher Singh Saini
Rajesh Vyas
Sunil Kumar Vaddamanu
author_sort MV Sunil Kumar
collection DOAJ
description Background: Digital manufacturing techniques such as milling (subtractive) and 3D printing (additive) are increasingly used in dental restorations. These technologies promise enhanced precision and efficiency compared to traditional methods. However, the accuracy of marginal and internal fits of crowns produced by these techniques remains under-explored. Objective: To evaluate and compare the marginal and internal fit of dental crowns fabricated using two digital manufacturing techniques: Milling (subtractive) and 3D printing (additive). Materials and Methods: A maxillary first molar was replicated to create seven representative dies for each technique. Crowns were fabricated using both milling and 3D printing methods. The fit of the crowns was assessed using the silicone replica technique, measuring occlusal, axial, marginal gaps, and internal fit. Results: 3D printing demonstrated the most precise fit across all measurement points, with significantly smaller discrepancies compared to milling. The two-way ANOVA analysis confirmed a significant effect of the fabrication method on marginal and internal gaps, highlighting the superior performance of 3D printing. However, the silicone replica technique revealed fewer significant differences between the two methods. Conclusion: 3D printing offers enhanced precision and consistency in crown fabrication compared to milling. Despite promising results, further research is necessary to confirm the long-term efficacy and cost-effectiveness of these techniques. Future studies should focus on larger clinical cohorts to validate these findings.
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institution Kabale University
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language English
publishDate 2024-12-01
publisher Wolters Kluwer Medknow Publications
record_format Article
series Journal of Pharmacy and Bioallied Sciences
spelling doaj-art-07bce8e5da2a400bba2fca9008e5544f2025-01-13T10:32:45ZengWolters Kluwer Medknow PublicationsJournal of Pharmacy and Bioallied Sciences0976-48790975-74062024-12-0116Suppl 4S3821S382310.4103/jpbs.jpbs_985_24A Comparative Analysis of the Accuracy of Crown Fabricated from Conventional Wax Patterns and CAD/CAM Technology – Milling and 3D PrintingMV Sunil KumarRajesh KumarRavindher Singh SainiRajesh VyasSunil Kumar VaddamanuBackground: Digital manufacturing techniques such as milling (subtractive) and 3D printing (additive) are increasingly used in dental restorations. These technologies promise enhanced precision and efficiency compared to traditional methods. However, the accuracy of marginal and internal fits of crowns produced by these techniques remains under-explored. Objective: To evaluate and compare the marginal and internal fit of dental crowns fabricated using two digital manufacturing techniques: Milling (subtractive) and 3D printing (additive). Materials and Methods: A maxillary first molar was replicated to create seven representative dies for each technique. Crowns were fabricated using both milling and 3D printing methods. The fit of the crowns was assessed using the silicone replica technique, measuring occlusal, axial, marginal gaps, and internal fit. Results: 3D printing demonstrated the most precise fit across all measurement points, with significantly smaller discrepancies compared to milling. The two-way ANOVA analysis confirmed a significant effect of the fabrication method on marginal and internal gaps, highlighting the superior performance of 3D printing. However, the silicone replica technique revealed fewer significant differences between the two methods. Conclusion: 3D printing offers enhanced precision and consistency in crown fabrication compared to milling. Despite promising results, further research is necessary to confirm the long-term efficacy and cost-effectiveness of these techniques. Future studies should focus on larger clinical cohorts to validate these findings.https://journals.lww.com/10.4103/jpbs.jpbs_985_243d-printingaccuracycad/camgold crownsinternal fitmarginal gapmillingsilicone replica techniquewax patterns
spellingShingle MV Sunil Kumar
Rajesh Kumar
Ravindher Singh Saini
Rajesh Vyas
Sunil Kumar Vaddamanu
A Comparative Analysis of the Accuracy of Crown Fabricated from Conventional Wax Patterns and CAD/CAM Technology – Milling and 3D Printing
Journal of Pharmacy and Bioallied Sciences
3d-printing
accuracy
cad/cam
gold crowns
internal fit
marginal gap
milling
silicone replica technique
wax patterns
title A Comparative Analysis of the Accuracy of Crown Fabricated from Conventional Wax Patterns and CAD/CAM Technology – Milling and 3D Printing
title_full A Comparative Analysis of the Accuracy of Crown Fabricated from Conventional Wax Patterns and CAD/CAM Technology – Milling and 3D Printing
title_fullStr A Comparative Analysis of the Accuracy of Crown Fabricated from Conventional Wax Patterns and CAD/CAM Technology – Milling and 3D Printing
title_full_unstemmed A Comparative Analysis of the Accuracy of Crown Fabricated from Conventional Wax Patterns and CAD/CAM Technology – Milling and 3D Printing
title_short A Comparative Analysis of the Accuracy of Crown Fabricated from Conventional Wax Patterns and CAD/CAM Technology – Milling and 3D Printing
title_sort comparative analysis of the accuracy of crown fabricated from conventional wax patterns and cad cam technology milling and 3d printing
topic 3d-printing
accuracy
cad/cam
gold crowns
internal fit
marginal gap
milling
silicone replica technique
wax patterns
url https://journals.lww.com/10.4103/jpbs.jpbs_985_24
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