DOI QR코드

DOI QR Code

Effect of span length on the fit of zirconia framework fabricated using CAD/CAM system

  • Lee, Jeong-Yol (Postgraduate School of Clinical Dentistry, Institute for Clinical Dental Research, Korea University) ;
  • Choi, Sang-Jin (Postgraduate School of Clinical Dentistry, Institute for Clinical Dental Research, Korea University) ;
  • Kim, Min-Soo (Postgraduate School of Clinical Dentistry, Institute for Clinical Dental Research, Korea University) ;
  • Kim, Ha-Young (Postgraduate School of Clinical Dentistry, Institute for Clinical Dental Research, Korea University) ;
  • Kim, Young-Soo (Postgraduate School of Clinical Dentistry, Institute for Clinical Dental Research, Korea University) ;
  • Shin, Sang-Wan (Postgraduate School of Clinical Dentistry, Institute for Clinical Dental Research, Korea University)
  • Received : 2012.10.19
  • Accepted : 2013.05.13
  • Published : 2013.05.31

Abstract

PURPOSE. The purpose of this study was to evaluate the effect of the span length on the fit of zirconia framework fabricated using CAD/CAM system. MATERIALS AND METHODS. Abutments for single, 4-unit and 6-unit fixed partial prostheses were fabricated. Ten zirconia frameworks were fabricated for each group. The marginal and internal gap were presented by means of replica technique and measured by measuring microscope ($AXIO^{(R)}$, Carl Zeiss, Rochester, NY) and software (I-$solution^{(R)}$, IMT i-solution Inc., Vancouver, BC, Canada). The results were statistically analyzed by multivariate analysis test and Dunnett T3 test for post hoc test (${\alpha}$=.05). RESULTS. There were statistically significant differences at 2, 4, 7, 8 points (mesio-distal section) and b, d, e, f, g (labio-lingual section). In some marginal reference points of 6-unit group (P<.05), the marginal gap were larger than 120 ${\mu}m$. CONCLUSION. Span length of zirconia core may have an influence on marginal and internal fit. Within the limitation of this study, the increase of span length of zirconia framework of 6 or more-unit fixed partial denture may decrease the marginal and internal fit.

Keywords

References

  1. Seghi RR, Denry IL, Rosenstiel SF. Relative fracture toughness and hardness of new dental ceramics. J Prosthet Dent 1995;74:145-150. https://doi.org/10.1016/S0022-3913(05)80177-5
  2. Reich S, Kappe K, Teschner H, Schmitt J. Clinical fit of fourunit zirconia posterior fixed dental prostheses. Eur J Oral Sci 2008;116:579-584. https://doi.org/10.1111/j.1600-0722.2008.00580.x
  3. Luthardt RG, Holzhüter M, Sandkuhl O, Herold V, Schnapp JD, Kuhlisch E, Walter M. Reliability and properties of ground Y-TZP-zirconia ceramics. J Dent Res 2002;81:487-491. https://doi.org/10.1177/154405910208100711
  4. 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;26:367-374.
  5. Suttor D, Bunke K, Hoescheler S, Hauptmann H, Hertlein G. LAVA-the system for all-ceramic ZrO2 crown and bridge frameworks. Int J Comput Dent 2001;4:195-206.
  6. 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;53:24-29. https://doi.org/10.1016/0022-3913(85)90058-7
  7. Karlsson S. The fit of Procera titanium crowns. An in vitro and clinical study. Acta Odontol Scand 1993;51:129-134. https://doi.org/10.3109/00016359309041158
  8. 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: 174-179. https://doi.org/10.1111/j.1600-0722.2004.00197.x
  9. Bindl A, Mörmann WH. Marginal and internal fit of all-ceramic CAD/CAM crown-copings on chamfer preparations. J Oral Rehabil 2005;32:441-447. https://doi.org/10.1111/j.1365-2842.2005.01446.x
  10. Sulaiman F, Chai J, Jameson LM, Wozniak WT. A comparison of the marginal fit of In-Ceram, IPS Empress, and Procera crowns. Int J Prosthodont 1997;10:478-484.
  11. Tuntiprawon M, Wilson PR. The effect of cement thickness on the fracture strength of all-ceramic crowns. Aust Dent J 1995;40:17-21. https://doi.org/10.1111/j.1834-7819.1995.tb05607.x
  12. Lawn BR, Pajares A, Zhang Y, Deng Y, Polack MA, Lloyd IK, Rekow ED, Thompson VP. Materials design in the performance of all-ceramic crowns. Biomaterials 2004;25:2885-2892 https://doi.org/10.1016/j.biomaterials.2003.09.050
  13. Thompson VP, Rekow DE. Dental ceramics and the molar crown testing ground. J Appl Oral Sci 2004;12:26-36.
  14. Rekow D, Thompson VP. Near-surface damage-a persistent problem in crowns obtained by computer-aided design and manufacturing. Proc Inst Mech Eng H 2005;219:233-243. https://doi.org/10.1243/095441105X9363
  15. Sailer I, Fehér A, Filser F, Gauckler LJ, Lüthy H, Hämmerle CH. Five-year clinical results of zirconia frameworks for posterior fixed partial dentures. Int J Prosthodont 2007;20:383-388.
  16. Tinschert J, Schulze KA, Natt G, Latzke P, Heussen N, Spiekermann H. Clinical behavior of zirconia-based fixed partial dentures made of DC-Zirkon: 3-year results. Int J Prosthodont 2008;21:217-222.
  17. Molin MK, Karlsson SL. Five-year clinical prospective evaluation of zirconia-based Denzir 3-unit FPDs. Int J Prosthodont 2008;21:223-227.
  18. Beuer F, Naumann M, Gernet W, Sorensen JA. Precision of fit: zirconia three-unit fixed dental prostheses. Clin Oral Investig 2009;13:343-349. https://doi.org/10.1007/s00784-008-0224-6
  19. Hung SH, Hung KS, Eick JD, Chappell RP. Marginal fit of porcelain-fused-to-metal and two types of ceramic crown. J Prosthet Dent 1990;63:26-31. https://doi.org/10.1016/0022-3913(90)90260-J
  20. Abduo J, Lyons K, Swain M. Fit of zirconia fixed partial denture: a systematic review. J Oral Rehabil 2010;37:866-876. https://doi.org/10.1111/j.1365-2842.2010.02113.x
  21. May KB, Russell MM, Razzoog ME, Lang BR. Precision of fit: the Procera AllCeram crown. J Prosthet Dent 1998;80: 394-404. https://doi.org/10.1016/S0022-3913(98)70002-2
  22. 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.
  23. Laurent M, Scheer P, Dejou J, Laborde G. Clinical evaluation of the marginal fit of cast crowns-validation of the silicone replica method. J Oral Rehabil 2008;35:116-122. https://doi.org/10.1111/j.1365-2842.2003.01203.x
  24. Moldovan O, Luthardt RG, Corcodel N, Rudolph H. Threedimensional fit of CAD/CAM-made zirconia copings. Dent Mater 2011;27:1273-1278. https://doi.org/10.1016/j.dental.2011.09.006

Cited by

  1. In Vitro Comparison of Marginal and Internal Fit of Press-on-Metal Ceramic (PoM) Restorations with Zirconium-Supported and Conventional Metal Ceramic Fixed Partial Dentures Before and After Veneering vol.24, pp.5, 2015, https://doi.org/10.1111/jopr.12229
  2. Fit of CAD/CAM Tooth-supported Single Crowns and Fixed Dental Prostheses vol.4, pp.2, 2017, https://doi.org/10.1007/s40496-017-0139-x
  3. Role of span length in the adaptation of implant-supported cobalt chromium frameworks fabricated by three techniques vol.9, pp.2, 2017, https://doi.org/10.4047/jap.2017.9.2.124