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논문 상세정보


Statement of problem: The use of zirconia prostheses fabricated with CAD/CAM system is on an increasing trend in dentistry. However, evaluation of the fit related to internal relief and marginal reproducibility of zirconia has not been reported. Purpose : This study was to evaluate the fit related to internal relief and marginal reproducibility of zirconia core fabricated with CAD/CAM system. Materials and methods: The evaluation was based on 30 zirconia cores and 5 IPS-Empress2 cores. Zirconia cores were fabricated in different conditions of internal relief(0, 10, 20, 30, 40 and $50{\mu}m$), and IPS-Empress2 cores were fabricated in accordance with the manufacturer's instructions. Before cementation, the marginal discrepancies or cores were measured on metal die. And then, each core was cemented to stone die, embedded in an acrylic resin and sectioned in two planes(mesiodistally and labiopalatally). The internal gaps were measured at the margin and axial surface. Measurements for the marginal discrepancies, the internal marginal gaps and the internal axial gaps were performed under a measuring microscope(Compact measuring microscope STM5; Olympus, Japan) at a magnification of ${\times}100$. In addition, the marginal conagurations of metal die, zirconia core and IPS-Empress2 core were examined with SEM(S-2700, Hitachi, Japan). Results : Within the limits of this study the results were as follows. 1. Compared with IPS-Empress2 cores, the marginal discrepancies of zirconia cores had no significant differences. the internal marginal gaps were statistically smaller and the internal axial gaps were statistically larger in each condition of internal relief. 2. The marginal discrepancies and the internal marginal gaps of zirconia cores had no significant differences related to the conditions of internal relief(P>0.05). 3. The internal axial gaps of zirconia cores with $0{\sim}20{\mu}$m for internal relief were significantly larger than that with $50{\mu}m$ (P<(0.0001). 4. SEM micrographs showed favorable marginal reproducibility of zirconia core and smooth texture on the milling surface. Conclusion: The marginal discrepancy and the internal gaps of zirconia core were clinically acceptable and the milling surface was showed smooth texture. For fabrication of the durable esthetic restoration, further investigations on complex design of core, milling accuracy, compatability of enamel porcelain and porcelain firing seems to be needed.

참고문헌 (36)

  1. Seghi RR, Sorensen JA. Relative flexural strength of six new ceramic materials. Int J Prosthodont 1995;8:239-46 
  2. Besimo C, Jeger C, Guggenheim R. Marginal adaptation of titanium frameworks produced by CAD/CAM techniques. Int J Prosthodont 1997;10:541-6 
  3. Yang JH, Yeo IS, Lee SH, Han JS, Lee JB. Marginal fit of Celay/In-ceram, conventional In-ceram and Empress 2 All-ceramic single crowns. J Korean Acad of Prosthodont 2002:40: 131-139 
  4. Fusayama T, Ide K, Hosoda H. Relief of resistance of cement of full cast crowns. J Prosthet Dent 1964: 14:95-106 
  5. Eames WB, O' Neal SJ, Monteiro J, Miller C, Roan JD, Cohen KS. Techniques to improve the seating of castings. J Am Dent Assoc 1978:96:432-7 
  6. May KB, Russell MM, Razzoog ME, Lang BR. Precision of fit: The Procera Allceram crown. J Prosthet Dent 1998:80:394-404 
  7. Council on dental materials and devices. Revised american national standards institute/American dental association specification No. 8 for zinc phosphate cement. J Am Dent Assoc 1978;96: 121-3 
  8. Wang CJ, Millstein PL, Nathanson DN. Effects of cement, cement space, marginal design, seating aid materials, and seating force on crown cementation. J Prosthet Dent 1992:67:786-90 
  9. Passon C, Lambert RH, Lambert RL, Newman S. The effect of multiple layers of die-spacer on crown retention. Oper Dent 1992: 17 :42-9 
  10. Grajower R, Zuberi Y, Lewinstein 1. Improving the fit of crowns with die spacers. J Prosthet Dent 1989:61:555-63 
  11. J orsensen KD, Esbensen AL. The relationship between the film thickness of zinc phosphate cement and the retention of veneer crowns. Acta Odontologica Scandinavica 1968; 26: 169-75 
  12. Andersson M, Carlsson L, Persson M, Bergman B. Accuracy of machine milling and spark erosion with a CAD/CAM system. J Prosthet Dent 1996:76:187-93 
  13. Duret F. The practical dental CAD/CAM in 1993. J Can Dent Assoc 1993:59:445-6, 448-53 
  14. Valderrama. S, Roekel NV, Andersson M, Goodacre CJ, and Munoz CA. A comparison of the marginal and internal adaptation of titanium and gold-platinum-palladium metal ceramic crowns. lnt J Prosthodont 1995;8:29-37 
  15. McLean JW, Von Fraunhofer JA. The estimation of cement film thickness by an in vivo technique. Br Dent J 1971:131:107-11 
  16. Tinschert J. Natt G, Mautsch W, Spickermann 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 
  17. Lee JH. An experimental study on the cervial margin fitness in the collarless metal ceramic crowns formed by different techniques. J Korean Acad of Prosthodont 1990 :28: 203-212 
  18. Small BW. Product review: All-ceramic system. Gen Dent 1998:46:446-50 
  19. Sturdevant JR, Bayne SC. Heymann HO. Margin gap size of ceramic in-lays using second-generation CAD/CAM equipment. J Esthet Dent 1999:11:206-14 
  20. Christensen GJ. Marginal Fit of Gold Castings. J Prosthet Dent 1966:16:297-305 
  21. Tuntiprawon M. Wilson PR. The effect of cement thickness on the fracture strength of all-ceramic crowns. Aust Dent J 1995; 40:17-21 
  22. Kim IS, Kang DW. Marginal adaptation of the conical inner crown fabrication with CAD/CAM. J Korean Acad of Prosthodont 2002 :40: 30-41 
  23. Boening KW. Wolf BH, Schmidt AE, Kastner K, Walter MH. Clinical fit of Procera Allceram crowns. J Prosthet Dent 2000:84:419-24 
  24. Grajower R, Zuberi Y, Lewinstein 1. Improving the fit of crowns with die spacers. J Prosthet Dent 1989:61:555-63 
  25. Kim DK, Cho IH, Lim JH, Lim HS. On The marginal fidelity of all-ceramic core using CAD/CAM system. J Korean Acad of Prosthodont 2003:41: 20-34 
  26. Rekow ED. High-technology innovationsand limitations for restorative dentistry. Dental Clinics of North America 1993;37:513-24 
  27. 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 
  28. Moon BW, Yang JH, Lee SH, Chung HY. A study on the marginal fit of all-eramic crowns using CCD camera. J Korean Acad of Prosthodont 1998: 36: 273-292 
  29. Jeon YC, Kim JH. An experimental study on the fitness of the cervical margin in the ceramo-metal crown according to the alloy types and the curvature of labio-cervical margin. J Korean Acad of Prosthodont 1991 :29: 181-196 
  30. Kim IS, Kim BO, Yoo KH, Kang DW. Design and fabrication of inner konus crown using three dimensional computer graphics. J Korean Acad of Prosthodont 2000: 38: 544-51 
  31. Mormann WH, Schug J. Grinding precision and accuracy of fit of CEREC2 CAD-CIM inlays. J Am Dent Assoc 1997;128:47-53 
  32. Yu JH, Kim YC, Kand DW. A study on the marginal fidelities and fracture strength of IPS EMPRESS 2 ceramic crowns. J Korean Acad of Prosthodont 2000:38:606-616 
  33. Holmes JR, Bayne SC, Holland GA Sulik WD. Considerations in measurement of marginal fit. J Prosthet Dent 1989:62:405-8 
  34. Gardener FM. Marginal of complete crowns-Literature review. J Prosthet Dent 1982: 48: 396-400 
  35. Tuntiprawon M. Wilson PR. The effect of cement thickness on the fracture strength of all-ceramic crowns. Aust Dent J 1995; 40:17-21 
  36. Moon HS, Kim JJ, A study on the physical characteristics of the three commonly used die spacing materials. J Korean Acad of Prosthodont 1999: 37: 640-650 

이 논문을 인용한 문헌 (1)

  1. Kim, Yoon-Young ; Park, Won-Hee ; Yoo, Dong-Yeob ; Lee, Young-Soo 2010. "Comparative study in marginal fit of a pressed ceramic and feldspathic porcelain fused to metal restoration" 대한치과보철학회지 = The journal of Korean academy of prosthodontics, 48(4): 273~279 


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