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Maxillary anterior all ceramic restoration using digital impression and CAD/CAM

디지털 인상채득 및 CAD/CAM을 이용한 상악 전치부 보철물 제작과 기존 방식 보철물과의 임상적 비교

  • Pyo, Se-Wook (Department of Prosthodontics, College of Dentistry, Yonsei University) ;
  • Park, Young-Bum (Department of Prosthodontics, College of Dentistry, Yonsei University) ;
  • Kim, Jee-Hwan (Department of Prosthodontics, College of Dentistry, Yonsei University) ;
  • Moon, Hong-Suk (Department of Prosthodontics, College of Dentistry, Yonsei University) ;
  • Lee, Keun-Woo (Department of Prosthodontics, College of Dentistry, Yonsei University)
  • 표세욱 (연세대학교 치과대학 치과보철학교실) ;
  • 박영범 (연세대학교 치과대학 치과보철학교실) ;
  • 김지환 (연세대학교 치과대학 치과보철학교실) ;
  • 문홍석 (연세대학교 치과대학 치과보철학교실) ;
  • 이근우 (연세대학교 치과대학 치과보철학교실)
  • Received : 2011.06.24
  • Accepted : 2011.07.08
  • Published : 2011.07.29

Abstract

The digital impression technique has been developed for more precise restorations and convenient procedures in prosthodontic treatment compared to the conventional impression technique. Along with the utilization of CAD/CAM, the introduction of digital impression technique actualizes the digitalization of dental treatments. This case is to compare two different prostheses introducing each procedure in detail; one from CAD/CAM after taking digital impression and the other from the conventional technique. A 22-year-old female visited the clinic with the chief complaint of correction of discoloration and shape on maxillary right central incisor. Due to the trauma 8 years ago, the tooth was endodontically treated with post and resin core. The treatment was planned and the procedures were conducted under the patient's consent to treat the tooth with all ceramic crowns in two different ways for comparison. In conclusion, both prostheses presented clinically acceptable results with comparing the internal fitness of two all ceramic crowns. The prosthesis from digital impression, however, showed more errors in respect of internal fitness.

기존 인상채득법에 비해 보다 정확하고 편리한 보철치료를 위하여 최근 디지털 인상채득법이 개발되고 있다. CAD/CAM과 더불어 디지털 인상채득법의 도입으로 치과 진료의 디지털화가 현실로 다가오는 시점에서, 본 증례는 디지털 인상채득 후CAD/CAM으로 제작한 보철물과 기존 방식으로 인상채득하여 제작한 보철물의 차이점을 임상적으로 알아보고 그 과정을 자세히 소개하였다. 22세 여자 환자가 상악 좌측 중절치의 변색과 모양 개선을 위해 보철 치료를 주소로 내원하였다. 8년전 외상으로 인해 근관치료 및 포스트를 시행 후, 치관 결손부는 레진으로 수복한 상태였으며, 전부도재관 치료계획 수립 후 환자의 동의 하에 서로 다른 방식의 2가지 보철물을 제작하여 비교해 보기로 하였다. 환자의 지대치를 기준으로 각 보철물의 내면적합도를 비교해본 결과, 두 보철물 모두 임상적으로 수용할만한 결과를 얻을 수 있었으나 아직까지는 기존 방식 보철물에 비해 디지털 방식의 보철물이 내면적합도에 있어서 더 큰 오차를 보임을 알 수 있었다.

Keywords

References

  1. Miyazaki T, Hotta Y, Kunii J, Kuriyama S, Tamaki Y. A review of dental CAD/CAM: current status and future perspectives from 20 years of experience. Dent Mater J 2009;28:44-56. https://doi.org/10.4012/dmj.28.44
  2. Christensen GJ. The state of fixed prosthodontic impressions: room for improvement. J Am Dent Assoc 2005;136:343-6. https://doi.org/10.14219/jada.archive.2005.0175
  3. Christensen GJ. Impressions are changing: deciding on conventional, digital or digital plus in-office milling. J Am Dent Assoc 2009;140:1301-4. https://doi.org/10.14219/jada.archive.2009.0054
  4. Cadent iTero Digital Impression System and Virtual 3-D Dentistry[Internet]. Carlstadt, NJ 07072; 2007. Available at: www.cadent.biz
  5. Jeffrey BD. The future of impressions. Dental Economics 2007 June 1. Available at: www.dentaleconomics.com
  6. Garg AK. Cadent iTero's digital system for dental impressions: the end of trays and putty? Dent Implantol Update 2008;19:1-4.
  7. Henkel GL. A comparison of fixed prostheses generated from conventional vs digitally scanned dental impressions. Compend Contin Educ Dent 2007;28:422-4, 426-8, 430-1.
  8. Beuer F, Schweiger J, Edelhoff D. Digital dentistry: an overview of recent developments for CAD/CAM generated restorations. Br Dent J 2008;204:505-11. https://doi.org/10.1038/sj.bdj.2008.350
  9. Christensen GJ. Marginal fit of gold inlay castings. J Prosthet Dent 1966;16:297-305. https://doi.org/10.1016/0022-3913(66)90082-5
  10. Moon BH, Yang JH, Lee SH, Chung HY. A study on the marginal fit of all-ceramic crown using CCD camera. J Korean Acad Prosthodont 1998;36:273-92.
  11. McLean JW, von Fraunhofer JA. The estimation of cement film thickness by an in vivo technique. Br Dent J 1971;131:107-11. https://doi.org/10.1038/sj.bdj.4802708
  12. Sorensen JA. A standardized method for determination of crown margin fidelity. J Prosthet Dent 1990;64:18-24. https://doi.org/10.1016/0022-3913(90)90147-5
  13. Molin M, Karlsson S. The fit of gold inlays and three ceramic inlay systems. A clinical and in vitro study. Acta Odontol Scand 1993;51:201-6. https://doi.org/10.3109/00016359309040568
  14. Rahme HY, Tehini GE, Adib SM, Ardo AS, Rifai KT. In vitro evaluation of the "replica technique" in the measurement of the fit of Procera crowns. J Contemp Dent Pract 2008;9:25-32.
  15. Syrek A, Reich G, Ranftl D, Klein C, Cerny B, Brodesser J. Clinical evaluation of all-ceramic crowns fabricated from intraoral digital impressions based on the principle of active wavefront sampling. J Dent 2010;38:553-9. https://doi.org/10.1016/j.jdent.2010.03.015

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