Journal of Technologic Dentistry (대한치과기공학회지)

Korean Academy of Dental Technology (대한치과기공학회)
권호 표지
DOI QR코드

DOI QR Code

Comparison of marginal gap of monolithic CAD/CAM-generated crowns according to the ceramic materials for CERECⓇ system

CERECⓇ system에서 사용하는 세라믹 소재로 가공된 CAD/CAM 전부도재관의 변연간격 비교분석

  • Kim, Jae-Hong (Department of Dental Technology, School of Medical and Public Health, Kyungdong University) ;
  • Kim, Ki-Baek (Institute of Health Science, College of Public Health Science, Korea University) ;
  • Kim, Sa-Hak (Department of Dental Technology, School of Medical and Public Health, Kyungdong University)
  • Received : 2016.05.03
  • Accepted : 2016.09.09
  • Published : 2016.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

Purpose: The purpose of this study is to evaluate the marginal gap of all-ceramic crowns fabricated by CEREC$^{(R)}$ in-office CAD/CAM system. Methods: The mandibular first molar was selected as the abutment for the experiments. Thirty working models were prepared. VITA Mark II(VM) and VITA Enamic(VE), LAVA Ultimate(LU) blocks were milled using CEREC MCXL with CEREC 3D system to construct 10 crowns for each groups. To measure marginal gap, milled restorations were examined under digital microscope with scale under 160x magnifications. The results were statistically analyzed using the one-way ANOVA and Tukey's HSD test(${\alpha}=0.05$). Results: There was no significant difference in the marginal gap regarding to ceramic materials(p>0.05). Conclusion: Single crowns fabricated using CEREC in-office CAD/CAM system provided clinically acceptable marginal gap. This confirmed that the type of ceramic material used does not determine the precision of fit of a prosthesis.

Keywords

References

  1. Beuer F, Schweiger J, Edelhoff D. Digital dentistry: an overview of recent developments for CAD/CAM generated restorations. Brit Den J, 204(9), 505-511, 2008. https://doi.org/10.1038/sj.bdj.2008.350
  2. Bindl A, Mormann WH. Clinical and SEM evaluation of all-ceramic chair-side CAD/CAM generated partial crowns. Eur J Oral Sci, 111(2), 163-169, 2003. https://doi.org/10.1034/j.1600-0722.2003.00022.x
  3. Bindl A, Mormann WH. Marginal and internal fit of all-ceramic CAD/CAM crown-copings on chamfer preparations. J Oral Rehabil, 32(6), 441-447, 2005. https://doi.org/10.1111/j.1365-2842.2005.01446.x
  4. Christensen GJ. Impressions are changing: deciding on conventional, digital or digital plus in-office milling. J Am Dent Assoc, 140(10), 1301-1304, 2009. https://doi.org/10.14219/jada.archive.2009.0054
  5. Conrad HJ, Seong WJ, Pesun IJ. Current ceramic materials and systems with clinical recommendations: A systematic review. J Prosthet Dent, 98(6), 389-404, 2007. https://doi.org/10.1016/S0022-3913(07)60124-3
  6. Ellingsen LA, Fasbinder DJ. In vitro evaluation of CAD/CIM ceramic crowns. J Dent Res, 81(1 suppl), A331, 2002.
  7. Fasbinder DJ. Chairside CAD/CAM: an overview of restorative material options. Compend Contin Educ Dent, 33(3), 50-58, 2012.
  8. Giordano R. Materials for chairside CAD/CAM-produced restorations. J Am Dent Assoc, 37 (11), 14S-21S, 2006.
  9. Gulker I. Margins. NY state Dent J, 51(4), 213-217, 1985.
  10. Holmes JR, Bayne SC, Holland GA, Sulik WD. Considerations in measurement of marginal fit. J Prosthet Dent, 62(4), 405-408, 1989. https://doi.org/10.1016/0022-3913(89)90170-4
  11. Kim KB, Kim WC, Kim HY, Kim JH. An evaluation of marginal fit of three-unit fixed dental prostheses fabricated by direct metal laser sintering system. Dent Mater, 29(7), e91-e96, 2013. https://doi.org/10.1016/j.dental.2013.04.007
  12. Lang NP, Kiel RA, Anderhalden K. Clinical and microbiological effects of subgingival restorations with overhanging or clinically perfect margins. J Clin Periodontol, 10(6), 563-578, 1983. https://doi.org/10.1111/j.1600-051X.1983.tb01295.x
  13. Mormann WH, Bindl A. The Cerec 3 - a quantum leap for computer-aided restorations: initial clinical results. Quintessence Int, 31(10), 699-712, 2000.
  14. Mormann WH. The evolution of the CEREC system. J Am Dent Assoc, 137(6 Suppl), 7S-13S, 2006.
  15. Ostlund LE. Cavity design and mathematics: their effect on gaps at the margins of cast restorations. Oper Dent, 10(4), 122-137, 1985.
  16. Reich, S. The occlusal precision of laboratory versus CAD/CAM processed all-ceramic crowns. Am J Dent, 23(1), 53-56, 2011.
  17. Ruse ND, Sadoun MJ. Resin-composite blocks for dental CAD/CAM application. J Dent Res, 93(12), 1232-1234, 2014. https://doi.org/10.1177/0022034514553976
  18. Tinschert J, Natt G, Hassenpflug S, Spiekermann H. Status of current CAD/CAM technology in dental medicine. International journal of computerized dentistry, 7(1), 25-45, 2004.
  19. Tsitrou EA, Northeast SE, Van NR. Evaluation of the marginal fit of three margin designs of resin composite crowns using CAD/CAM. J Dent, 35(1), 68-73, 2007. https://doi.org/10.1016/j.jdent.2006.04.008
  20. Yeo IS, Yang JH, Lee JB. In vitro marginal fit of three all-ceramic crown systems. J Prosthet Dent, 90(5),459-64, 2003. https://doi.org/10.1016/j.prosdent.2003.08.005

Cited by

  1. 3D 프린팅 기술로 출력된 치과 보철물의 임상적 적합도 평가 vol.41, pp.1, 2016, https://doi.org/10.14347/kadt.2019.41.1.1