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Application of 3D printing technology for rehabilitating maxillary defects

악안면 결손 환자에서 3D printing을 이용한 보철 수복 증례

  • Cho, Young-Eun (Department of Prosthodontics, School of Medicine, Ewha Womans University) ;
  • Ohkubo, Chikahiro (Department of Removable Prosthodontics, Tsurumi University School of Dental Medicine) ;
  • Park, Eun-Jin (Department of Prosthodontics, School of Medicine, Ewha Womans University)
  • 조영은 (이화여자대학교 치과보철학교실) ;
  • ;
  • 박은진 (이화여자대학교 치과보철학교실)
  • Received : 2020.04.30
  • Accepted : 2020.07.30
  • Published : 2020.10.30

Abstract

The use of an obturator prosthesis for patients with maxillary defects is a common treatment method to improve their oral function and achieve esthetic satisfaction. However, due to various difficulties and complexities, conventional methods for fabricating dental obturators continue to pose a challenge for dentists and patients, as well as laboratory technicians. CAD-CAM technologies may make it simple to fabricate maxillofacial prostheses including hollow obturators, which could improve comfort for clinicians by reducing burdensome manipulations. In addition, patients without a specialist in their vicinity will be able to be treated via cooperation between a nearby general practitioner and a distant prosthodontist. The aim of this clinical report is to investigate the possibility of using digitally fabricated maxillofacial prostheses that can be designed in one location, and manufactured in another in clinical situations.

외상, 구강암, 선천적 요인 등에 의한 구강 결손시 음식물의 섭취, 흡입성 폐렴 방지, 안모 지지를 위하여 치과용 obturator가 제작된다. 그러나 기존의 전통적인 인상 채득 방법을 이용한 obturator제작 시, 제작 과정에서 술자와 환자, 기공사 모두 번거로운 과정을 거쳐야 하며, 환자는 악안면 보철 치료가 가능한 치과 보철 전문의가 있는 병원을 찾아 방문해야 하는 어려움이 있다. 그러나, 3D printing을 포함한 CAD-CAM 기술을 이용하면 비교적 간단하게 hollow obturator를 제작할 수 있고, 보철 전문의가 없는 지역에서도, 지역 치과의사와 멀리 떨어져 있는 보철 전문의 간의 협진을 통해 수월한 치료가 가능할 수 있다. 본 연구에서는 한국의 상악 구개 결손 환자들의 치료를 위해, 일본에서 obturator를 디자인하고 한국에서 3D printing하여 성공적으로 obturator를 제작하였고, 더불어 원격 치료의 가능성을 확인하였기에 보고하는 바이다.

Keywords

References

  1. Kornblith AB, Zlotolow IM, Gooen J, Huryn JM, Lerner T, Strong EW, Shah JP, Spiro RH, Holland JC. Quality of life of maxillectomy patients using an obturator prosthesis. Head Neck 1996;18:323-34. https://doi.org/10.1002/(SICI)1097-0347(199607/08)18:4<323::AID-HED3>3.0.CO;2-#
  2. Kumar P, Alvi HA, Rao J, Singh BP, Jurel SK, Kumar L, Aggarwal H. Assessment of the quality of life in maxillectomy patients: A longitudinal study. J Adv Prosthodont 2013;5:29-35. https://doi.org/10.4047/jap.2013.5.1.29
  3. Ye H, Ma Q, Hou Y, Li M, Zhou Y. Generation and evaluation of 3D digital casts of maxillary defects based on multisource data registration: A pilot clinical study. J Prosthet Dent 2017;118:790-5. https://doi.org/10.1016/j.prosdent.2017.01.014
  4. Kanazawa M, Inokoshi M, Minakuchi S, Ohbayashi N. Trial of a CAD/CAM system for fabricating complete dentures. Dent Mater J 2011;30:93-6. https://doi.org/10.4012/dmj.2010-112
  5. Inokoshi M, Kanazawa M, Minakuchi S. Evaluation of a complete denture trial method applying rapid prototyping. Dent Mater J 2012;31:40-6. https://doi.org/10.4012/dmj.2011-113
  6. Kattadiyil MT, Mursic Z, AlRumaih H, Goodacre CJ. Intraoral scanning of hard and soft tissues for partial removable dental prosthesis fabrication. J Prosthet Dent 2014;112:444-8. https://doi.org/10.1016/j.prosdent.2014.03.022
  7. Goodacre CJ, Garbacea A, Naylor WP, Daher T, Marchack CB, Lowry J. CAD/CAM fabricated complete dentures: concepts and clinical methods of obtaining required morphological data. J Prosthet Dent 2012;107:34-46. https://doi.org/10.1016/S0022-3913(12)60015-8
  8. Elbashti M, Hattori M, Sumita Y, Aswehlee A, Yoshi S, Taniguchi H. Creating a digitized database of maxillofacial prostheses (obturators): A pilot study. J Adv Prosthodont 2016;8:219-23. https://doi.org/10.4047/jap.2016.8.3.219
  9. Kin YT, Shin MJ, Urimal workbook of articulation and phonology, Hakjisa, 2004. p. 48-58.
  10. Maeda Y, Minoura M, Tsutsumi S, Okada M, Nokubi T. A CAD/CAM system for removable denture. Part I: Fabrication of complete dentures. Int J Prosthodont 1994;7:17-21.
  11. Lima JM, Anami LC, Araujo RM, Pavanelli CA. Removable partial dentures: use of rapid prototyping. J Prosthodont 2014;23:588-91. https://doi.org/10.1111/jopr.12154
  12. Inokoshi M, Kanazawa M, Minakuchi S. Evaluation of a complete denture trial method applying rapid prototyping. Dent Mater J 2012;31:40-6. https://doi.org/10.4012/dmj.2011-113
  13. Chen H, Wang H, Lv P, Wang Y, Sun Y. Quantitative Evaluation of Tissue Surface Adaption of CAD-Designed and 3D Printed Wax Pattern of Maxillary Complete Denture. Biomed Res Int 2015;2015:453968.
  14. Alifui-Segbaya F, Williams RJ, George R. Additive manufacturing: A novel method for fabricating cobalt-chromium removable partial denture frameworks. Eur J Prosthodont Restor Dent 2017;25:73-8.
  15. Alharbi N, Wismeijer D, Osman RB. Additive manufacturing techniques in prosthodontics: Where do we currently stand? A critical review. Int J Prosthodont 2017;30:474-84. https://doi.org/10.11607/ijp.5079
  16. Hwang HJ, Lee SJ, Park EJ, Yoon HI. Assessment of the trueness and tissue surface adaptation of CAD-CAM maxillary denture bases manufactured using digital light processing. J Prosthet Dent 2019;121:110-7. https://doi.org/10.1016/j.prosdent.2018.02.018
  17. Strub JR, Rekow ED, Witkowski S. Computer-aided design and fabrication of dental restorations: current systems and future possibilities. J Am Dent Assoc 2006;137:1289-96. https://doi.org/10.14219/jada.archive.2006.0389
  18. Gong H, Rafi K, Gu H, Starr T, Stucker B. Analysis of defect generation in Ti-6Al-4V parts made using powder bed fusion additive manufacturing processes. Addit Manuf 2014;1-4:87-98. https://doi.org/10.1016/j.addma.2014.08.002