The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
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Marginal fit of three-unit zirconia anterior fixed dental prostheses fabricated using CAD/CAM and MAD/MAM system

CAD/CAM과 MAD/MAM 시스템으로 제작된 3-unit 지르코니아 고정성 국소의치의 변연 적합도에 관한 연구

  • Song, Tae-Jin (Department of Prosthodontics, School of Dentistry, Seoul National University) ;
  • Yeo, In-Sung (Department of Prosthodontics, School of Dentistry, Seoul National University) ;
  • Yang, Jae-Ho (Department of Prosthodontics, School of Dentistry, Seoul National University)
  • 송태진 (서울대학교 치의학대학원 치과보철학교실) ;
  • 여인성 (서울대학교 치의학대학원 치과보철학교실) ;
  • 양재호 (서울대학교 치의학대학원 치과보철학교실)
  • Received : 2010.10.11
  • Accepted : 2011.02.07
  • Published : 2011.04.29
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Abstract

Purpose: The purpose of this study was to compare the marginal fit of three-unit zirconia fixed dental prostheses (FDPs) fabricated using CAD/CAM and MAD/MAM system. Materials and methods: Dentiform maxillary central and lateral incisor were prepared for 3-unit FDP and fixed in yellow stone. This model was duplicated to epoxy resin die. On the resin die, fifteen 3-unit FDPs were fabricated. Metal-ceramic group was three-unit metal-ceramic FDPs, $Everest^{(R)}$ group was zirconia three-unit FDPs fabricated using the $Everest^{(R)}$ system (Kavo Dental GmbH, Biberach, Germany) and $Rainbow^{TM}$ group was zirconia three-unit FDPs fabricated using the $Rainbow^{TM}$ system (Dentium Co. Inc., Seoul, South Korea). They were cemented to resin dies with adhesive resin cement. After removing pontics, each retainers were separated and observed under measuring machine (Presize 440C) and analyzed through one-way ANOVA and Duncan test (${\alpha}$ = .05). Results: Mean values and standard deviations of marginal gap dimensions in each group for three-unit FDPs were $78.5{\pm}11.05\;{\mu}m$ for the metal-ceramic group, $59.30{\pm}11.63\;{\mu}m$ for the $Everest^{(R)}$ group and $70.34{\pm}13.98\;{\mu}m$ for the $Rainbow^{TM}$ group. Conclusion: 1. The $Everest^{(R)}$ group in comparison with metal-ceramic group showed better marginal fit, which had significant differences P<.05. 2. The mean marginal gap values between $Everest^{(R)}$ and $Rainbow^{TM}$ group did not showed significant differences (P>.05). 3. The mean marginal gap values between $Rainbow^{TM}$ group and metal-ceramic group did not showed significant differences (P>.05). 4. The mean marginal gaps of each group were within clinically acceptable range ($120\;{\mu}m$).

연구 목적: 본 연구의 목적은 CAD/CAM과 MAD/MAM 시스템으로 제작된 3-unit 지르코니아 고정성 국소의치의 변연 적합도를 통상적인 방법으로 제작된 금속-도재 고정성 국소의치와 비교 분석하는 것이다. 연구 재료 및 방법: 레진 치아 (상악 중절치와 측절치)를 전부 도재관을 위한 형태로 삭제하고, 이를 인상 채득하여 에폭시 레진 모형을 제작하였다. 이 모형상에서 금속-도재 고정성 국소의치, CAD/CAM 지르코니아 고정성 국소의치 ($Everest^{(R)}$, Kavo Dental GmbH, Biberach, Germany), MAD/MAM 지르코니아 고정성 국소의치 ($Rainbow^{TM}$, Dentium Co. Inc., Seoul, South Korea)를각각5개씩 제작하였다. 제작된 고정성 국소의치를 레진 모형에 접착하고, 가공치 부위를 절단하여, 각각 광학 현미경 (Presize 440C)을이용, 145 배율로 변연 간격을 측정하였다. 측정된 결과는 one-way ANOVA test로 분석하였고, Duncan test로 사후 검정하였다 (${\alpha}$=.05). 결과: 각 군의 변연 간격의 평균과 표준편차는 금속-도재 고정성 국소의치 $78.48{\pm}11.05\;{\mu}m$, $Everest^{(R)}$ 시스템 $59.30{\pm}11.63\;{\mu}m$, $Rainbow^{TM}$ 시스템 $70.34{\pm}13.98\;{\mu}m$로 측정되었다. 결론: 1. $Everest^{(R)}$ 시스템이 금속-도재 고정성 국소의치보다 변연 간격이 작은 것으로 측정되었다 (P<.05). 2. $Everest^{(R)}$ 시스템과 $Rainbow^{TM}$ 시스템간의 변연 적합도는 유의성 있는 차이를 보이지 않았다 (P>.05). 3. $Rainbow^{TM}$ 시스템은 금속-도재 고정성 국소의치와 변연 간격에 유의 차가 없었다 (P>.05). 4. 각 군의 평균 변연 간격이 임상적으로 적합한 범위 내에 ($120\;{\mu}m$) 있었다.

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References

  1. Sorensen JA. A rationale for comparison of plaque-retaining properties of crown systems. J Prosthet Dent 1989;62:264-9. https://doi.org/10.1016/0022-3913(89)90329-6
  2. Sorensen SE, Larsen IB, Jorgensen KD. Gingival and alveolar bone reaction to marginal fit of subgingival crown margins. Scand J Dent Res 1986;94:109-14.
  3. Tinschert J, Natt G, Mautsch W, Spiekermann H, Anusavice KJ. Marginal fit of alumina-and zirconia-based fixed partial dentures produced by a CAD/CAM system. Oper Dent 2001;26:367-74.
  4. Reich S, Wichmann M, Nkenke E, Proeschel P. Clinical fit of all-ceramic three-unit fixed partial dentures, generated with three different CAD/CAM systems. Eur J Oral Sci 2005;113:174-9. https://doi.org/10.1111/j.1600-0722.2004.00197.x
  5. Kang DR, Shim JS, Moon HS, Lee KW. Marginal fidelity of zirconia core using MAD/MAM system. J Korean Acad Prosthodont 2010;48:1-7. https://doi.org/10.4047/jkap.2010.48.1.1
  6. 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
  7. Belser UC, MacEntee MI, Richter WA. Fit of three porcelain-fused-to-metal marginal designs in vivo: a scanning electron microscope study. J Prosthet Dent 1985;53:24-9. https://doi.org/10.1016/0022-3913(85)90058-7
  8. Coli P, Karlsson S. Precision of a CAD/CAM technique for the production of zirconium dioxide copings. Int J Prosthodont 2004;17:577-80.
  9. Beuer F, Naumann M, Gernet W, Sorensen JA. Precision of fit: zirconia three-unit fixed dental prostheses. Clin Oral Investig 2009;13:343-9. https://doi.org/10.1007/s00784-008-0224-6
  10. Sailer I, Feher A, Filser F, Gauckler LJ, Luthy H, Hammerle CH. Five-year clinical results of zirconia frameworks for posterior fixed partial dentures. Int J Prosthodont 2007;20:383-8.
  11. Sailer I, Feher A, Filser F, Luthy H, Gauckler LJ, Scharer P, Franz Hammerle CH. Prospective clinical study of zirconia posterior fixed partial dentures: 3-year follow-up. Quintessence Int 2006;37:685-93.
  12. Wettstein F, Sailer I, Roos M, Hammerle CH. Clinical study of the internal gaps of zirconia and metal frameworks for fixed partial dentures. Eur J Oral Sci 2008;116:272-9. https://doi.org/10.1111/j.1600-0722.2008.00527.x
  13. 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
  14. 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.
  15. Gassino G, Barone Monfrin S, Scanu M, Spina G, Preti G. Marginal adaptation of fixed prosthodontics: a new in vitro 360-degree external examination procedure. Int J Prosthodont 2004;17:218-23.
  16. Groten M, Axmann D, Probster L, Weber H. Determination of the minimum number of marginal gap measurements required for practical in-vitro testing. J Prosthet Dent 2000;83:40-9. https://doi.org/10.1016/S0022-3913(00)70087-4
  17. Yoon JW, Yang JH, Han JS, Lee JB. A study on the marginal fit of collarless metal ceramic fixed partial dentures. J Korean Acad Prosthodont 2005;43:707-16.
  18. Vigolo P, Fonzi F. An in vitro evaluation of fit of zirconium-oxide-based ceramic four-unit fixed partial dentures, generated with three different CAD/CAM systems, before and after porcelain firing cycles and after glaze cycles. J Prosthodont 2008;17:621-6. https://doi.org/10.1111/j.1532-849X.2008.00366.x
  19. Gonzalo E, Suarez MJ, Serrano B, Lozano JF. Comparative analysis of two measurement methods for marginal fit in metal-ceramic and zirconia posterior FPDs. Int J Prosthodont 2009;22:374-7.
  20. Rosentritt M, Behr M, Kolbeck C, Handel G. Marginal integrity of CAD/CAM fixed partial dentures. Eur J Dent 2007;1:25-30.
  21. Kohorst P, Brinkmann H, Dittmer MP, Borchers L, Stiesch M. Influence of the veneering process on the marginal fit of zirconia fixed dental prostheses. J Oral Rehabil 2010;37:283-91. https://doi.org/10.1111/j.1365-2842.2009.02053.x
  22. Shin HS, Kim SG. Comparison of marginal fit before and after porcelain build-up of two kinds of CAD/CAM zirconia all-ceramic restorations. J Korean Acad Prosthodont 2008;46:529-34.
  23. Huh JB, Park CG, Kim HY, Park CK, Shin SW. Evaluation using Replica Technique on the marginal and internal fitness of zirconia cores by several CAD/CAM systems. J Korean Acad Prosthodont 2010;48:135-42. https://doi.org/10.4047/jkap.2010.48.2.135
  24. Belles DM, Cronin RJ Jr, Duke ES. Effect of metal design and technique on the marginal characteristics of the collarless metal ceramic restoration. J Prosthet Dent 1991;65:611-9. https://doi.org/10.1016/0022-3913(91)90193-Z
  25. Bindl A, Mormann WH. Marginal and internal fit of all-ceramic CAD/CAM crown-copings on chamfer preparations. J Oral Rehabil 2005;32:441-7. https://doi.org/10.1111/j.1365-2842.2005.01446.x
  26. Witkowski S, Komine F, Gerds T. Marginal accuracy of titanium copings fabricated by casting and CAD/CAM techniques. J Prosthet Dent 2006;96:47-52. https://doi.org/10.1016/j.prosdent.2006.05.013

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