대한치과보철학회지 (The Journal of Korean Academy of Prosthodontics)

  • 제40권5호
  • /
  • Pages.441-450
  • /
  • 2002
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  • 0301-2875(pISSN)
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  • 2005-3789(eISSN)
대한치과보철학회 (The Korean Academy of Prosthodonitics)
권호 표지

IPS Empress 도재관의 파절강도 : 하악 제2소구치에서 교합면 두께와 축면 경사도에 따른 영향

FRACTURE STRENGTH OF THE IPS EMPRESS CROWN : THE EFFECT OF OCCLUSAL DEPTH AND AXIAL INCLINATION ON LOWER SECOND PREMOLAR

  • 김희진 (원광대학교 치과대학 보철학교실) ;
  • 이해형 (원광대학교 치과대학 치과생체재료학교실) ;
  • 남영성 (원광대학교 치과대학 보철학교실) ;
  • 동진근 (원광대학교 치과대학 보철학교실)
  • Kim Hee-Jin (Department of Prosthodontics, School of dentistry, Wonkwang University) ;
  • Lee Hae-Hyoung (Department of Biomaterials, School of dentistry, Wonkwang University) ;
  • Nam Young-Sung (Department of Prosthodontics, School of dentistry, Wonkwang University) ;
  • Dong Jin-Keun (Department of Prosthodontics, School of dentistry, Wonkwang University)
  • 발행 : 2002.10.01
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초록

The purpose of this study was compare the fracture strength of the IPS Empress ceramic crown according to the occlusal depth (1.5mm, 2.0mm, 2.5mm) and axial inclination ($4^{\circ},\;8^{\circ},\;12^{\circ}$) of the lower second premolar. After 10 metal dies were made for each group, the IPS Empress ceramic crowns were fabricated and cemented with resin cement. The cemented crowns were mounted on the testing jig with inclination of 30 degrees and the universal testing machine was used to measure the fracture strength. The results of this study were as follows : 1. The fracture strength of the ceramic crown with 2.5mm depth and $12^{\circ}$ inclination was the highest (1284 N). Crowns of 1.5mm depth and $8^{\circ}$ inclination had the lowest strength (951 N). 2. There were no significant differences in the fracture strength by axial inclination of the same occlusal depth group. 3. Most fracture lines began at the loading area and extended through proximal surface perpendicular to the margin, irrespective of occlusal depth.

키워드

참고문헌

  1. Southan DE, Jorgensen KD. Faulty porcelain jacket crowns. Aust Dent J 1973; 18:152-156 https://doi.org/10.1111/j.1834-7819.1973.tb03452.x
  2. Oh SC, Dong JK. A study on the flexural strength of heat-pressed ceramics according to sprue designs, J Korean Acad Prosthodont 1997; 35: 130-140
  3. Dong JK. Luthy H, Wohelwend A, Scharer P. Heat-Pressed Ceramics. Technology and strength. Int J Prosthodont 1992:5:916
  4. Beham G. IPS-Empress. A new ceramic technology. Ivoclar-Vivadent Report 1990; 6:1-13
  5. Brodbeck D, Studer S, Lehner C. Six-year clinical experience with an all-ceramic restoration system. Dental-Labor 1995;Ill
  6. Yu HW, Song CY, Bae TS, Song KY, Park CW. A comparative study on the flexure strength of the ceramics for all-ceramic crowns. J Korean Acad Prosthodont 1994;32: 195-211
  7. Paek SJ. Yang JH. A study on the fracture strength of all-ceramic crowns. J Korean Acad Prosthodont 1995:33:611--633
  8. Oh SC, Choi DG, Woo YH, Choi BB. A study on the flexure strength and microstructure of IPS Empress ceramics according to the sprue types. Kyunghee Dent J 1997; 19: 391-418
  9. Mutobe Y, Maruyama T, Kataoka S. In harmony with nature. Esthetic restoration of a nonvital tooth with IPS-Empress all-ceramic material. QDT 1997;83-85
  10. Dong JK, Oh SC, Kim SD. Fracture strength of the IPS Empress crown: The effect of occlusal depth and axial inclination on upper first premolar crowns. J Korean Acad Prosthodont 1999;37: 127-133
  11. Mclean JW. Ceramics in clinical dentistry. Br Dent J 1988;187
  12. Wohlwend A., Strub JR., Scharer P. Metal ceramic and all porcelain restorations: Current consideration. Int J Prosthodont 1989;2: 13-26
  13. Yamamoto M. Metal-Ceramics. Chicago. Quintessence Int 1987;219
  14. Claus H. Vita In-ceram, A new system for producing aluminum oxid crown and bridge substructures. Quintessz Zahntech 1990; 16:35
  15. Probster L. Survival rate of In-Coram restoration. Int J Prosthodont 1993;259-263
  16. Vintage manual. Shofu Co. Tokyo, Japan
  17. Dicor laboratory manual. Densply international. York Pa 1987
  18. Hobo S, Iwata T. Castable apatite ceramics as a new biocompatible restorative material. II. Fabrication of the restoration. Quintessence Int 1985; 16: 207
  19. Kelly JR, Giordana R, Prober R, Gima MJ. Fracture surface analysis of dental ceramics. Clinically failed restorations. Int J Prosthodont. 1990;3:430
  20. Anusavice KJ, Hojjatie B. Tensile stress in glass-ceramic crowns. Effect of flaws and cement voids. Int J Prosthodont 1992:5:351
  21. Claus H. Das Hi-Ceram-Verfahren-metallfrere Kronen auf einem Keramikgerust. Dent Labor 1987;35:479
  22. Optec Hsp laboratory technique manual. Jeneric/Pentro Inc Wallingford CN January 1988
  23. Schwickerrath H. Die In-Ceram Aluminiumoxid-Kerarniken Innova-tiver dentalke laischer Werkstoff. Dent Labor 1989: 37:1597
  24. Krejci I. Krejci D, Lutz F. Clinical evaluation of a new pressed glass ceramic inlay material over 1.5 years. Quintessence int.1992:23:181-6
  25. Tidehag P, Gunne J. A 2-year clinical follow-up study of IPS-Empress ceramic inlay. Int. J. Prosth 1995:8:456-460
  26. Seghi RR. Sorensen JA. Relative flexural strength of six new ceramic materials. Int. J. Prosth. 1995:8:239-24
  27. Green DJ. Microcracking mechanisms in ceramics. In. Bradt RC, Evans AG, Lange FF, Hasselman DP(des), Fracture Mechanics of ceramics. Vol.5. New York. plenum press. 1983:457-478
  28. Green DJ, Hannink FHJ, Swain MV. Transformation toughening of ceramics. Boca Raton FL. CRC Press. 1989:57-91
  29. Faber KT, Evans AG. Crack deflection processes, I Theory. Acta Metall. 1983: 31:565-576
  30. Mackert JR Jr, Russel C. Leucite crystallization of a heat-pressed dental ceramic. Int J Prosthodont. 1996: 9: 261
  31. Hobo S, Iwata T. Castable apatite ceramics as a new biocompatible restorative material. I. Theoretical considerations. Quintessence Int 1985: 16: 135
  32. Adair PJ, Grossman DG. The castable ceramic crown. Int J Periodont Rest Dent 1984:4:32
  33. Sozio RB, Riley EJ. Shrink free ceramic. Dent Clin North Am 1985:29:705-717
  34. Schwickerath H. Was der Zahntechniker each ten sollte Herstellung von vollkeramischem Zahnersatz. Dent Labor. 1992:40: 1501
  35. Craig RG. Restorative dental materials. pp65. St Louis. CV Mosby. 1989
  36. Grossman DG, Nelson JW. The bonded Dicor crown. J Dent Res. abstr No.800. 1987:66:206
  37. Friedlander LD, Munoz CA, Goodacre CJ, Doyle MG, Moor BK . The effect of tooth preparation design on breaking strenth of Dicor crowns. Part 1. Int J Prosthodont 1990: 3: 159