Journal of Dental Rehabilitation and Applied Science (구강회복응용과학지)

Korean Academy of Stomatognathic Function and Occlusion (대한턱관절교합학회)
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Cr-Co removable partial denture treatment fabricated by selective laser melting: a case report

Selective Laser Melting을 이용한 코발트-크롬 가철성 국소의치의 수복 증례

  • Yim, Ji-Hun (Department of Prosthodontics, College of Dentistry, Dankook University) ;
  • Shin, Soo-Yeon (Department of Prosthodontics, College of Dentistry, Dankook University)
  • 임지훈 (단국대학교 치과대학 치과보철학교실) ;
  • 신수연 (단국대학교 치과대학 치과보철학교실)
  • Received : 2020.09.07
  • Accepted : 2021.01.14
  • Published : 2021.03.31
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Abstract

Compared to conventional method, if metal framework of removable partial denture is fabricated by selective laser melting, various laboratory works are omitted, saving time and simplifying the process. In addition, metal framework with homogeneous density can be obtained, expecting excellent mechanical properties, especially resistance to fatigue fracture. In these cases, impression were taken using conventional methods in partial edentulous patients, master casts were fabricated and scanned to obtain digital data. After designing the metal frameworks on the scanned data, removable partial dentures were fabricated using selective laser melting methods. Through these procedure, satisfactory outcomes were achieved both in functional and esthetic aspects.

의치의 금속구조물을 selective laser melting을 통하여 제작하는 경우 기존의 제작 방식에 비해 여러 기공 과정이 생략되어 시간이 절약되고 간편해진다. 또한 균질한 밀도의 금속구조물을 얻을 수 있어 우수한 기계적 성질, 특히 피로 파절에 대한 높은 저항성을 기대할 수 있다. 본 증례에서는 부분 무치악 환자에서 기존의 방식으로 최종인상을 채득하여 주모형을 제작하였고 이를 스캔하여 데이터화 하였다. 스캔 데이터 상에서 금속구조물을 디자인한 뒤 selective laser melting 방식으로 가철성 국소의치를 제작하였으며 기능적 및 심미적으로 만족스러운 결과를 보였기에 이를 보고하는 바이다.

Keywords

References

  1. Williams RJ, Bibb R, Rafik T. A technique for fabricating patterns for removable partial denture frameworks using digitized casts and electronic surveying. J Prosthet Dent 2004;91:85-8. https://doi.org/10.1016/j.prosdent.2003.10.002
  2. Williams RJ, Bibb R, Eggbeer D, Collis J. Use of CAD/CAM technology to fabricate a removable partial denture framework. J Prosthet Dent 2006;96:96-9. https://doi.org/10.1016/j.prosdent.2006.05.029
  3. Eggbeer D, Bibb R, Williams R. The computer-aided design and rapid prototyping fabrication of removable partial denture frameworks. Proc Inst Mech Eng H 2005;219:195-202. https://doi.org/10.1243/095441105X9372
  4. Smith S, Dvorak D. Tool path strategies for high speed milling aluminum workpieces with thin webs. Mechatronics 1998:8:291-300. https://doi.org/10.1016/S0957-4158(97)00058-5
  5. Dizon JRC, Espera AH, Chen Q, Advincula RC. Mechanical characterization of 3D-printed polymers. Addit Manufac 2018;20:44-67. https://doi.org/10.1016/j.addma.2017.12.002
  6. Tasaka A, Shimizu T, Kato Y, Okano H, Ida Y, Higuchi S, Yamashita S. Accuracy of removable partial denture framework fabricated by casting with a 3D printed pattern and selective laser sintering. J Prosthodont Res 2020;64:224-30. https://doi.org/10.1016/j.jpor.2019.07.009
  7. Zhou Y, Li N, Yan J, Zeng Q. Comparative analysis of the microstructures and mechanical properties of Co-Cr dental alloys fabricated by different methods. J Prosthet Dent 2018;120:617-23. https://doi.org/10.1016/j.prosdent.2017.11.015
  8. Kim HR, Jang SH, Kim YK, Son JS, Min BK, Kim KH, Kwon TY. Microstructures and mechanical properties of Co-Cr dental alloys fabricated by three CAD/CAM-based processing techniques. Materials 2016;9:596. https://doi.org/10.3390/ma9070596
  9. Takaichi A, Nakamoto T, Joko N, Nomura N, Tsutsumi Y, Migita S, Doi H, Kurosu S, Chiba A, Wakabayashi N, Igarashi Y, Hanawa T. Microstructures and mechanical properties of Co-29Cr-6Mo alloy fabricated by selective laser melting process for dental applications. J Mech Behav Biomed Mater 2013;21:67-76. https://doi.org/10.1016/j.jmbbm.2013.01.021
  10. Schweiger J, Guth JF, Erdelt KJ, Edelhoff D, Schubert O. Internal porosities, retentive force, and survival of cobalt-chromium alloy clasps fabricated by selective laser-sintering. J Prosthodont Res 2020;64:210-16. https://doi.org/10.1016/j.jpor.2019.07.006
  11. Lapcevic AR, Jevremovic DP, Puskar TM, Williams RJ, Eggbeer D. Comparative analysis of structure and hardness of cast and direct metal laser sintering produced Co-Cr alloys used for dental devices. Rapid Prototyp J 2016;22:144-51. https://doi.org/10.1108/RPJ-04-2014-0051
  12. Tuna SH, Pekmez NO, Kurkcuoglu I. Corrosion resistance assessment of Co-Cr alloy frameworks fabricated by CAD/CAM milling, laser sintering, and casting methods. J Prosthet Dent 2015;114:725-34. https://doi.org/10.1016/j.prosdent.2015.02.031
  13. Hedberg YS, Qian B, Shen Z, Virtanen S, Wallinder IO. In vitro biocompatibility of CoCrMo dental alloys fabricated by selective laser melting. Dent Mater 2014;30:525-34. https://doi.org/10.1016/j.dental.2014.02.008
  14. Mansour M, Sanchez E, Machado C. The use of digital impressions to fabricate tooth-supported partial removable dental prostheses: A clinical Report. J Prosthodont 2016;25:495-7. https://doi.org/10.1111/jopr.12346
  15. Al Jabbari YS, Koutsoukis T, Barmpagadaki X, Zinelis S. Metallurgical and interfacial characterization of PFM Co-Cr dental alloys fabricated via casting, milling or selective laser melting. Dent Mater 2014;30:79-88.
  16. Kajima Y, Takaichi A, Nakamoto T, Kimura T, Yogo Y, Ashida M, Doi H, Nomura N, Takahashi H, Hanawa T, Wakabayashi N. Fatigue strength of Co-Cr-Mo alloy clasps prepared by selective laser melting. J Mech Behav Biomed Mater 2016;59:446-58. https://doi.org/10.1016/j.jmbbm.2016.02.032
  17. Tregerman I, Renne W, Kelly A, Wilson D. Evaluation of removable partial denture frameworks fabricated using 3 different techniques. J Prosthet Dent 2019;122:390-5. https://doi.org/10.1016/j.prosdent.2018.10.013
  18. Ye H, Ning J, Li M, Niu L, Yang J, Sun Y, Zhou Y. Preliminary clinical application of removable partial denture frameworks fabricated using computer aided design and rapid prototyping techniques. Int J Prosthodont 2017;30:348-53. https://doi.org/10.11607/ijp.5270
  19. Tasaka A, Kato Y, Odaka K, Matsunaga S, Goto TK, Abe S, Yamashita S. Accuracy of Clasps Fabricated with Three Different CAD/CAM Technologies: Casting, Milling, and Selective Laser Sintering. Int J Prosthodont 2019;32:526-9. https://doi.org/10.11607/ijp.6363
  20. Kanazawa M, Iwaki M, Minakuchi S, Nomura N. Fabrication of titanium alloy frameworks for complete dentures by selective laser melting. J Prosthet Dent 2014;112:1441-7. https://doi.org/10.1016/j.prosdent.2014.06.017