Acta Scientific Dental Sciences (ASDS)(ISSN: 2581-4893)

Research Article Volume 6 Issue 7

Marginal Accuracy of Titanium Framework Using Different Manufacturing Techniques in Fixed Partial Prostheses

Sherif Magdy1, Gaber Masoud2, Amany Korsel2 and Waleed Elshahawy3*

1Lecturer, Department of Fixed Prosthodontics, Faculty of Dentistry, Tanta University, Egypt
2Professor, Department of Fixed Prosthodontics, Faculty of Dentistry, Tanta University, Egypt
3Assistant Professor, Department of Fixed Prosthodontics, Faculty of Dentistry, Tanta University, Egypt

*Corresponding Author: Waleed Elshahawy, Assistant Professor, Department of Fixed Prosthodontics, Faculty of Dentistry, Tanta University, Egypt.

Received: April 04, 2022; Published: June 09, 2022

Abstract

Purpose: This study aimed to evaluate marginal accuracy of titanium framework using different manufacturing techniques in fixed partial prostheses (Conventional casting, subtractive and additive manufacturing).

Material and Methods: Thirty resin replicas of a metallic master die were scanned. The design of the titanium framework was done utilizing 3Shape software (CAD) that resembles three-unit bridges to obtain Standard Tessellation Language (STL) file of the final design. Thirty titanium frameworks were fabricated and divided in to three groups according to manufacturing technique. Group C (n = 10): Casting manufacturing technique. Group S (n = 10): Subtractive manufacturing technique. Group A (n = 10): Additive manufacturing technique. In group (C), the framework wax pattern was fabricated using 3D printed wax pattern then invested and casted. In groups (S)and(A), The STL file of the final design of titanium framework was send to a computer aided manufacturing (CAM) machine and metal rapid prototyping machine. Each framework was luted to epoxy die under 2 kg static load. The luted assembly was segmented longitudinal at its center. The gap between die and framework was measured before and after sectioning at cervical shoulder in terms of vertical gap (VG) and horizontal discrepancy (HD), then were statistically analyzed by ANOVA/Tukey test (P < 0.05).

Results: The VG and HD values of titanium framework fabricated by subtractive technology showed high marginal accuracy compared to the others at all measurement locations. However, there was no statistical difference (P > 0.05) among the subtractive and additive technology. Casting titanium showed the least marginal accuracy in both VG and HD values.

Conclusion: The measured marginal accuracies of titanium framework fabricated by the subtractive and additive techniques demonstrated clinically acceptable marginal discrepancies on the working dies.

Keyword: Titanium, Marginal accuracies, Subtractive manufacturing, Additive manufacturing

References

  1. Sailer I., et al. “A systematic review of the survival and complication rates of all‐ceramic and metal-ceramic reconstructions after an observation period of at least 3 years. Part II: fixed dental prostheses”. Clinical Oral Implants Research 18 (2007): 86-96.
  2. Philip GB., et al. “Titanium and its role in Dentistry”. IJSRP 7 (2017): 602-608.
  3. Boeckler AF., et al. “Prospective Observation of CAD/CAM Titanium‐Ceramic‐Fixed Partial Dentures: 3‐Year Follow‐Up”. Journal of Prosthodontics 19 (2010): 592-597.
  4. Tschernitschek H., et al. “Nonalloyed titanium as a bioinert metal-A review”. Quintessence International (2005): 36.
  5. Elshahawy W. “Marginal accuracy in casting titanium fixed partial dentures”. Tanta Dental Journal 12 (2015): 119-123.
  6. Inoue T., et al. “Fit and dimensional changes of cast CP titanium crowns fabricated using sintered molds”. Dental Materials Journal 20 (2001): 195-205.
  7. Van Noort R. “The future of dental devices is digital”. Dental Materials Journal 28 (2012): 3-12.
  8. Miyazaki T and Hotta Y. “CAD/CAM systems available for the fabrication of crown and bridge restorations”. Australian Dental Journal 56 (2011): 97-106.
  9. Witkowski S., et al. “Marginal accuracy of titanium copings fabricated by casting and CAD/CAM techniques”. Journal of Prosthetic Dentistry 96 (2006): 47-52.
  10. Quante K., et al. “Marginal and internal fit of metal-ceramic crowns fabricated with a new laser melting technology”. Dental Materials Journal 24 (2008): 1311-1315.
  11. Traini T., et al. “Direct laser metal sintering as a new approach to fabrication of an isoelastic functionally graded material for manufacture of porous titanium dental implants”. Dental Materials Journal 24 (2008): 1525-1533.
  12. Akova T., et al. “Comparison of the bond strength of laser-sintered and cast base metal dental alloys to porcelain”. Dental Materials Journal 24 (2008): 1400-1404.
  13. Ucar Y., et al. “Internal fit evaluation of crowns prepared using a new dental crown fabrication technique: laser-sintered Co-Cr crowns”. Journal of Prosthetic Dentistry 102 (2009): 253-259.
  14. Al-Fadda SA., et al. “A comparison of the accuracy of fit of 2 methods for fabricating implant-prosthodontic frameworks”. The International Journal of Prosthodontics (2007): 20-25.
  15. Prajapati A., et al. “Dentistry goes digital: a CAD-CAM way-a review article”. Journal of Applied Dental and Medical Sciences 13 (2014): 53-59.
  16. Priest G. “Virtual-designed and computer-milled implant abutments”. Journal of Oral and Maxillofacial Surgery 63 (2005): 22-32.
  17. Strub JR., et al. “Computer-aided design and fabrication of dental restorations: current systems and future possibilities”. Journal of the American Dental Association 137 (2006): 1289-1296.
  18. Ahlholm P., et al. “Digital versus conventional impressions in fixed prosthodontics: a review”. Journal of Prosthodontics 27 (2018): 35-41.
  19. Tan PL., et al. “An in vitro comparison of vertical marginal gaps of CAD/CAM titanium and conventional cast restorations”. Journal of Prosthodontics 17 (2008): 378-383.
  20. Liu Q., et al. “Rapid prototyping in dentistry: technology and application”. The International Journal of Advanced Manufacturing Technology 29 (2006): 317-335.
  21. Azari A and Nikzad S. “The evolution of rapid prototyping in dentistry: a review”. Rapid Prototyping Journal 15 (2009): 216-225.
  22. Gibson I., et al. “Design for additive manufacturing”. Additive Manufacturing Technologies: Springer (2010): 299-332.
  23. Holmström J., et al. “Rapid manufacturing in the spare parts supply chain: Alternative approaches to capacity deployment”. Journal of Manufacturing Technology Management 21 (2010): 687-697.
  24. Att W., et al. “Fracture resistance of single-tooth implant-supported all-ceramic restorations: an in vitro study”. Journal of Prosthetic Dentistry 95 (2006): 111-116.
  25. Suárez MJ., et al. “Comparison of the marginal fit of Procera AllCeram crowns with two finish lines”. The International Journal of Prosthodontics (2003): 16-21.
  26. Sun J and Zhang FQ. “The application of rapid prototyping in prosthodontics”. Journal of Prosthodontics 21 (2012): 641-644.
  27. Wettstein F., et al. “Clinical study of the internal gaps of zirconia and metal frameworks for fixed partial dentures”. European Journal of Oral Sciences 116 (2008): 272-279.
  28. Gonzalo E., et al. “Comparative analysis of two measurement methods for marginal fit in metal-ceramic and zirconia posterior FPDs”. The International Journal of Prosthodontics (2009): 22-26.
  29. Gosavi S., et al. “Titanium: A Miracle Metal in Dentistry”. Trends in Biomaterials and Artificial Organs (2013): 27-31.
  30. Persson M., et al. “The accuracy of a high-precision digitizer for CAD/CAM of crowns”. Journal of Prosthetic Dentistry 74 (1995): 223-229.
  31. Shamseddine L., et al. “Marginal and internal fit of pressed ceramic crowns made from conventional and computer-aided design and computer-aided manufacturing wax patterns: An in vitro comparison”. Journal of Prosthetic Dentistry 116 (2016): 242-248.
  32. Alghazzawi TF., et al. “The Effect of Different Fabrication Steps on the Marginal Adaptation of Two Types of Glass‐Infiltrated Ceramic Crown Copings Fabricated by CAD/CAM Technology”. Journal of Prosthodontics 21 (2012): 167-172.
  33. Senthilkumaran K., et al. “Influence of building strategies on the accuracy of parts in selective laser sintering”. Materials and Design 30 (2009): 2946-2954.
  34. Wittneben JG., et al. “A systematic review of the clinical performance of CAD/CAM single-tooth restorations”. The International Journal of Prosthodontics (2009): 22.
  35. AlHelal A., et al. “CAD-CAM implant-supported fixed complete dental prosthesis with titanium milled molars: A clinical report”. Journal of Prosthetic Dentistry 117 (2017): 463-469.
  36. El-Dessouky R., et al. “Marginal adaptation of CAD/CAM zirconia-based crown during fabrication steps”. Tanta Dental Journal 12 (2015): 81-88.
  37. Gujjari AK., et al. “Color stability and flexural strength of poly (methyl methacrylate) and bis-acrylic composite based provisional crown and bridge auto-polymerizing resins exposed to beverages and food dye: an in vitro study”. Indian Journal of Dental Research 24 (2013): 172.
  38. Trajtenberg C., et al. “Microleakage of all-ceramic crowns using self-etching resin luting agents”. Operative Dentistry 33 (2008): 392-399.
  39. Lewinstein I., et al. “Retention and marginal leakage of provisional crowns cemented with provisional cements enriched with chlorhexidine diacetate”. Journal of Prosthetic Dentistry 98 (2007): 373-378.
  40. Low D and Mori T. “Titanium full crown casting: thermal expansion of investments and crown accuracy”. Dental Materials Journal 15 (1999): 185-190.
  41. Low D. “Differing expansion contributions of three investment materials used for casting titanium”. Journal of Prosthodontics 18 (2009): 444-449.
  42. Miyazaki T., et al. “A review of dental CAD/CAM: current status and future perspectives from 20 years of experience”. Dental Materials Journal 28 (2009): 44-56.
  43. Leong D., et al. “Marginal fit of machine-milled titanium and cast titanium single crowns”. The International Journal of Prosthodontics (1994): 7.
  44. Suárez MJ., et al. “Marginal fit of titanium metal-ceramic crowns”. The International Journal of Prosthodontics (2005): 18.
  45. Ida K., et al. “Effect of magnesia investments in the dental casting of pure titanium or titanium alloys”. Dental Materials Journal 1 (1982): 8-21.
  46. Besimo C., et al. “Marginal adaptation of titanium frameworks produced by CAD/CAM techniques”. The International Journal of Prosthodontics (1997): 10.
  47. Kikuchi M and Okuno O. “Machinability evaluation of titanium alloys”. Dental Materials Journal 23 (2004): 37-45.
  48. Guimu Z., et al. “Experimental study on the milling of thin parts of titanium alloy (TC4)”. JMPT 138 (200.3): 489-493.
  49. Örtorp A., et al. “The fit of cobalt-chromium three-unit fixed dental prostheses fabricated with four different techniques: A comparative in vitro study”. Dental Materials Journal 27 (2011): 356-363.
  50. Ezugwu E., et al. “An overview of the machinability of aeroengine alloys”. JMPT 134 (2003): 233-253.

Citation

Citation: Waleed Elshahawy., et al. “Marginal Accuracy of Titanium Framework Using Different Manufacturing Techniques in Fixed Partial Prostheses". Acta Scientific Dental Sciences 6.7 (2022): 15-24.

Copyright

Copyright: © 2022 Waleed Elshahawy., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.




Metrics

Acceptance rate30%
Acceptance to publication20-30 days
Impact Factor1.278

Indexed In





News and Events


  • Certification for Review
    Acta Scientific certifies the Editors/reviewers for their review done towards the assigned articles of the respective journals.
  • Submission Timeline for Upcoming Issue
    The last date for submission of articles for regular Issues is December 25, 2024.
  • Publication Certificate
    Authors will be issued a "Publication Certificate" as a mark of appreciation for publishing their work.
  • Best Article of the Issue
    The Editors will elect one Best Article after each issue release. The authors of this article will be provided with a certificate of "Best Article of the Issue"

Contact US









ff

© 2024 Acta Scientific, All rights reserved.