Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Mechanical Properties and Microstructure of Dental Heat-Pressable Glass-Ceramics

치과용 열가압 글라스 세라믹스의 기계적 성질과 미세구조

  • 이해형 (단국대학교 치과대학 치과생체재료학) ;
  • 이병택 (공주대학교 신소재공학부)
  • Published : 2004.01.01
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Abstract

Biaxial flexure strength (ball-on-3-ball) and fracture toughness (indentation microfracture) of heat-pressable glass-ceramics for dental use were investigated in this study. Crystal phase and microstructure of glass-ceramics were analyzed by XRD. SEM, and TEM. Crack propagation in specimens was not effectively arrested by dispersed crystalline particles. However, higher degree of crystallization probably contributes to strengthening of glass-ceramics. Better clinical reliability can be expected from lithium disilicate glass-ceramic because of its significantly higher biaxial flexure strength and fracture toughness.

본 연구에서는 치아 수복에 사용되는 상용 글라스 세라믹들을 디스크 모양으로 열가압 성형하여 ball-on-3-bal에 의한 이축강도와 압입시험에 의한 파괴인성을 측정하였다. 시편들로부터 XRD, SEM, TEM을 이용하여 결정상과 미세구조를 분석하였다. 글라스 세라믹내의 결정들은 균열의 진행에 대하여 효과적인 저지를 하지 못하였으나 높은 결정화도가 기계적 성질의 향상에 기여하는 것으로 판단된다. Lithium disilicate결정의 글라스 세라믹은 상대적으로 결정함량이 낮은 leucite 세라믹에 비하여 유의하게 높은 이축강도와 파괴인성을 나타내어 치과용 글라스 세라믹으로서 높은 신뢰성이 기대된다.

Keywords

References

  1. J. Prothet. Dent. v.75 Ceramics in Dentistry: Historical Roots and Current Perspectives R.J.Kelly;I.Nishimura;S.D.Cambell https://doi.org/10.1016/S0022-3913(96)90413-8
  2. Annu. Rev. Sci. v.27 Ceramics in Restorative and Prosthetic Dentistry R.J.Kelly https://doi.org/10.1146/annurev.matsci.27.1.443
  3. US Patent 3,052,982 Fused Porcelain-to-Metal Teeth M.Weinstein;S.Katz;A.B.Weinstein
  4. J. Am. Dent. Assoc. v.128 Why All-Ceramic Crowns? G.J.Christensen https://doi.org/10.14219/jada.archive.1997.0068
  5. J. Am. Dent. Assoc. v.128 An Update on Fixed Prosthodontics R.J.Cronin;D.R.Cagna https://doi.org/10.14219/jada.archive.1997.0226
  6. J. Kor. Res. Soc. Dent. Mater. v.27 Recent Dental Ceramics : Processing and Strengthening(in Kor.) H.H.Lee
  7. Phillips Science of Dental Materials(10th Ed.) Dental Ceramics K.J.Anusavice
  8. Restorative Dental Materials(11th Ed.) Ceramics R.G.Craig
  9. J. Kor. Ceram. Soc. v.36 Determination of the Biaxial Strength by Ball-on-3-ball Test S.E.Park;J.H.Lee;H.L.Lee
  10. J. Dent. Res. v.69 Influences of Test Method on Failure Stress of Brittle Dental Materials S.Ban;K.J.Anusavice https://doi.org/10.1177/00220345900690120201
  11. Pract. Proced. Aesthet. Dent. v.Suppl Survival of Glass-Ceramic Materials and Involved Clinical Risk: Variables Affecting Long-Term Survival K.A.Malament;S.S.Socransky;V.Thompson;D.Rekow
  12. Perspective in Dental Ceramics, Proceedings of the fourth International Symposium on Ceramics The Siences of Glass Ceramics D.G.Grossman;J.D.Preston(ed.)
  13. J. Dent. v.27 The Biaxial Flexural Strength of Two Pressable Ceramic Systems M.J.Cattell;J.C.Knowles;R.L.Clarke https://doi.org/10.1016/S0300-5712(98)00047-5
  14. J. Biomed. Mater. Res. v.53 A Comparison of the Microstructure and Properties of the IPS Empress 2 and the IPS Empress Glass-Ceramics W.Holand;M.Schweiger;M.Frank;V.Rheinberger https://doi.org/10.1002/1097-4636(2000)53:4<297::AID-JBM3>3.0.CO;2-G
  15. J. Mater. Sci. v.34 Microstructure and Properties of a Composite System for Dental Applications Composted of Glass-Ceramics in the SiO₂-Li₂O-ZrO₂-P₂O$_5$ System and Ceramics (TZP) M.Schweiger;M.Frank;S.Cramer;V.Clausbruch;W.Holand;V.Rheinberger https://doi.org/10.1023/A:1004661911158
  16. ASTM Standard F394-78 v.15.02 ASTM Annual Book of Standard Americal Society for Testing and Materials
  17. Ceram. Bull. v.58 Biaxial Flexure Tests for Ceramics D.K.Shetty;A.R.Rosenfield;G.K.Bansal;W.H.Duckworth
  18. Fracture Mechanics of Ceramics v.5 Identation Fracture Toughness of Brittle Materials for Palmqvist Cracks K.Niihara;R.Morena;D.P.H.Hasselman;R.C.Bradt(ed.);A.G.Evans(ed.);D.P.H.Hasselman(ed.);F.F.Lange(ed.)
  19. Bio.-Med. Mater. Eng. v.9 Fracture Toughness and Durability of Chemically or Thermally Tempered Matal-Ceramic Procelain H.H.Lee;M.Kon;K.Asaok
  20. Dent. Mater. v.17 Nondestructive Estimation of the Strength of Dental Ceramic Materials H.Fischer;G.Dautzenberg;R.Marx https://doi.org/10.1016/S0109-5641(00)00086-5
  21. J. Prosthet. Dent. v.89 Biaxial Flexural Strength, Elastic Moduli, and X-Ray Diffraction Characterization of Three Pressable All-Ceramic Materials M.Albakry;M.Guazzato;M.V.Swain https://doi.org/10.1067/mpr.2003.42
  22. J. Am. Ceram. Soc. v.82 Relationship between the Estimated Weibull Modulus and the Coefficient of Variation of the Measured Strength for Ceramics J.Gong;Y.Li https://doi.org/10.1111/j.1551-2916.1999.tb20084.x
  23. J. Am. Ceram. Soc. v.83 no.4 Reply to Comment of Relationship between the Estimated Weibull Modulus and the Coefficient of Variation of the Measured Strength for Ceramics J.Gong;Y.Li https://doi.org/10.1111/j.1151-2916.2000.tb01323.x
  24. J. Prosthet. Dent. v.87 Factors Affecting Enamel and Ceramic Weat : A Literature Review W.S.Oh;R.Delong;K.JAnusavice https://doi.org/10.1067/mpr.2002.123851
  25. J. Mater. Proc. Tech. v.65 Machinability and Brittleness of Glass-Ceramics A.R.Boccaccini https://doi.org/10.1016/S0924-0136(96)02275-3
  26. Phys. Chem. Minerals. v.16 Twining in Tetragonal Leucite D.C.Palmer;A.Putnis;E.K.H.Salje
  27. Dent. Mater. J. v.16 Influence of Modification of Na₂O in a Glass Matrix on the Strength of Leucite-Containing Porcelains H.H.Lee;M.Koh;K.Asaoka https://doi.org/10.4012/dmj.16.134
  28. Transactions of Second International Congress on Dental Meterials Advances in Dental Ceramic Materials J.R.Mackert;T.Okabe(ed.)
  29. J. Kor. Res. Soc. Dent. Mater. v.30 Nano-Hardness and Elastic Modulus of Leucite Particle and Glass Matrix in Dental Porcelains H.H.Lee
  30. J. Dent. Res. v.77 Chemical Durability of Fluorcanasite-Based Glass-Ceramics K.J.Anusavice;N.Z.Zhang https://doi.org/10.1177/00220345980770071101
  31. Current Optinion in Solid State & Mater. Sci. v.6 Ceramic-Based Layer Structures for Biomechanical Applications B.R.Lawn https://doi.org/10.1016/S1359-0286(02)00016-5