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세라믹 비니어의 글레이징에 따른 반투명도 변화

Translucency of ceramic veneers on glazing effect

  • 김성준 (제주대학교 의학전문대학원 치과학교실) ;
  • 감세훈 (제주대학교 의학전문대학원 치과학교실)
  • Kim, Sung-Joon (Department of Dentistry, School of Medicine, Jeju National University) ;
  • Kahm, Se Hoon (Department of Dentistry, School of Medicine, Jeju National University)
  • 투고 : 2015.02.23
  • 심사 : 2015.04.08
  • 발행 : 2015.04.30

초록

목적: 본 연구의 목적은 두 종의 라미네이트 세라믹 비니어의 글레이징 여부에 따른 반투명도 변화를 비교하는데 있다. 재료 및 방법: IPS e.maxPress (IEM)와 Styleveneers (STV)를 대상으로 하여 각각 0.3 mm와 0.6 mm 두께의 한 변이 10 mm인 정사각형 형태의 시편을 글레이징을 시행한 군과 하지 않은 군으로 나누어 제작하였다(n=80). 각 시편은 측색기를 이용하여 색좌표(CIE $L^*a^*b^*$)를 측정하였다. Translucency Parameter (TP)는 측정한 색차를 계산하여 얻었다. 각 제조사별 차이와, 글레이징 여부에 관한 통계 분석을 위해 독립표본 t-test를 시행하였다(P=.05). 결과: IEM의 0.3 mm 두께에서 TP값(평균${\pm}$표준편차)은 글레이징을 시행하지 않은 군에서 $45.99{\pm}3.00$, 글레이징을 시행한 군에서 $49.53{\pm}2.28$이었으며, 0.6 mm 두께에서는 각각 $32.82{\pm}2.59$$43.02{\pm}0.98$이었다. 마찬가지로, STV의 0.3 mm 두께에서 TP값은 글레이징을 시행하지 않은 군에서 $47.03{\pm}3.65$, 글레이징을 시행한 군에서 $50.95{\pm}3.05$이었으며, 0.6 mm 두께에서는 각각 $34.48{\pm}1.28$$43.39{\pm}1.20$이었다. 세라믹 비니어의 글레이징 여부에 따라, 세라믹 비니어의 TP값은 통계적으로 차이가 나타났다. 그러나 제조사간의 통계적 유의성은 없었다. 결론: 한계는 있지만, 본 연구에서, 라미네이트 세라믹 비니어는 글레이징 과정을 거치면 반투명도가 변화되며, 제조사간의 차이는 없다는 결론을 얻었다.

Purpose: The aim of this study was to compare the translucency of two different laminate ceramic veneers with and without glazing. Materials and methods: Ten millimeter side square-shaped specimens in 0.3 mm and 0.6 mm thick were fabricated for the following materials with and without glazing (n=80): A1 shade IPS e.maxPress (IEM) and Styleveneers (STV). The color coordinates (CIE $L^*a^*b^*$) of the specimens were measured with a colorimeter. The Translucency parameter (TP) was calculated from the color difference of the material on a black versus a white background. For comparisons between materials and between the 'not glazed' and 'glazed' groups, unpaired t-test was used to analyze the data (P=.05). Results: The TP ($Mean{\pm}SD$) of 'not-glazed' and 'glazed' group of IEM specimens at 0.3 mm thickness were $45.99{\pm}3.00$ and $49.53{\pm}2.28$ and the TP at 0.6 mm thickness were $32.82{\pm}2.59$ and $43.02{\pm}0.98$, respectively. Likewise, the TP of 'not-glazed' and 'glazed' group of STV specimens at 0.3 mm thickness were $47.03{\pm}3.65$ and $50.95{\pm}3.05$ and the TP at 0.6 mm thickness group were $34.48{\pm}1.28$ and $43.39{\pm}1.20$, respectively. As the glazing of ceramic veneer differed, the TP of each ceramic veneer showed statistically significant difference. But, the result between the products was not statistically different. Conclusion: Within the limitations of this study, we are concluded that the glazing process changed translucency of laminate ceramic veneers and the TP would not be affected by products.

키워드

참고문헌

  1. Joiner A. Tooth colour: a review of the literature. J Dent 2004; 32:3-12.
  2. Yilmaz K, Gonuldas F, Ozturk C. The effect of repeated firings on the color change of dental ceramics using different glazing methods. J Adv Prosthodont 2014;6:427-33. https://doi.org/10.4047/jap.2014.6.6.427
  3. Barizon KT, Bergeron C,Vargas MA,Qian F,Cobb DS,Gratton DG, Geraldeli S. Ceramic materials for porcelain veneers: part II. Effect of material, shade, and thickness on translucency. J Prosthet Dent 2014;112:864-70. https://doi.org/10.1016/j.prosdent.2014.05.016
  4. Yilmaz C, Korkmaz T, Demirkoprulu H, Ergun G, Ozkan Y. Color stability of glazed and polished dental porcelains. J Prosthodont 2008;17:20-4.
  5. Wiskott HWA. Fixed prosthodontics: principles and clinics. London; Quintessence publishing Co. Ltd; 2011. p. 670-1.
  6. Choi BB, Woo YH. Contemporary fixed prosthodontics. 3rd ed. Seoul: Jisung, 2003. p. 645.
  7. Chu FC, Chow TW, Chai J. Contrast ratios and masking ability of three types of ceramic veneers. J Prosthet Dent 2007;98:359-64. https://doi.org/10.1016/S0022-3913(07)60120-6
  8. Baek KW, Kim SJ. Thickness and translucency of opaque shade composite resin for masking effect. J Korean Dent Assoc 2011;49:203-10.
  9. Sinmazisik G, Demirbas B, Tarcin B. Influence of dentin and core porcelain thickness on the color of fully sintered zirconia ceramic restorations. J Prosthet Dent 2014;111:142-9. https://doi.org/10.1016/j.prosdent.2013.09.016
  10. Heffernan MJ, Aquilino SA, Diaz-Arnold AM, Haselton DR, Stanford CM, Vargas MA. Relative translucency of six all-ceramic systems. Part II: core and veneer materials. J Prosthet Dent 2002;88:10-5.
  11. Spear F, Holloway J. Which all-ceramic system is optimal for anterior esthetics? J Am Dent Assoc 2008;139:19S-24S.
  12. Obregon A, Goodkind RJ, Schwabacher WB. Effects of opaque and porcelain surface texture on the color of ceramometal restorations. J Prosthet Dent 1981;46:330-40. https://doi.org/10.1016/0022-3913(81)90222-5
  13. British standard specification for dental porcelains for jacket crowns. BS5612. London; British Standard Institution, 1978.
  14. Johnston WM, Ma T, Kienle BH. Translucency parameter of colorants for maxillofacial prostheses. Int J Prosthodont 1995;8: 79-86.
  15. Ryu SY, Lim JH, Cho IH. A study on the color stability of porcelain for porcelain fused to metal crown. J Korean Acad Prosthodont 2000;38:73-84.
  16. Chung IS, Lee DC. Effect of surface treatments and glazing temperatures on bond strength and color reproducibility in titanium-ceramic prosthesis. J Korea Content Assoc 2010;10:243-50.
  17. Kelly JR. Dental ceramics: what is this stuff anyway? J Am Dent Assoc 2008;139:4S-7S.
  18. Etman MK. Confocal examination of subsurface cracking in ceramic materials. J Prosthodont 2009;18:550-9. https://doi.org/10.1111/j.1532-849X.2009.00447.x
  19. Guazzato M, Albakry M, Ringer SP, Swain MV. Strength, fracture toughness and microstructure of a selection of all-ceramic materials. Part I. Pressable and alumina glass-infiltrated ceramics. Dent Mater 2004;20:441-8. https://doi.org/10.1016/j.dental.2003.05.003
  20. Cattell MJ, Knowles JC, Clarke RL, Lynch E. The biaxial flexural strength of two pressable ceramic systems. J Dent 1999;27:183-96. https://doi.org/10.1016/S0300-5712(98)00047-5
  21. Rugh EH, Johnston WM, Hesse NS. The relationship between elastomer opacity, colorimeter beam size, and measured colorimetric response. Int J Prosthodont 1991;4:569-76.
  22. Turgut S, Bagis B, Ayaz EA, Korkmaz FM, Ulusoy KU, Bagis YH. How will surface treatments affect the translucency of porcelain laminate veneers? J Adv Prosthodont 2014;6:8-13. https://doi.org/10.4047/jap.2014.6.1.8

피인용 문헌

  1. Effect of glazing and aging on optical properties of high-translucency zirconia vol.44, pp.4, 2015, https://doi.org/10.14815/kjdm.2017.44.4.319
  2. 3점 굽힘강도 시험을 통한 Lithium disilicate glass ceramic의 표면 연마 정도에 따른 강도 평가 vol.40, pp.1, 2015, https://doi.org/10.14347/kadt.2018.40.1.9