Journals / Hacettepe Dişhekimliği Fakültesi Derg.(. Clinical Dentistry and Research) / 2006 / Cilt: 30 - Sayı: 1

İç ve dış boyama yapılan metal seramik restorasyonlarda hızlı yaşlanmanın porselen rengine etkisi

Effect of accelerated aging on color of intrinsically and extrinsically stained porcelain used in metal ceramic restorations

Pages
90–96
Publication Date
2022-10-17
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The CIE - LAB system was used for determining overall color change (AE'ab).

📌 3 Key Takeaways

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Objective & Hypothesis:The effect of accelerated aging time on color stability of intrinsically and extrinsically stained porcelain used in metal - ceramic restorations was investigated in this study.
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Key Findings & Data:Metal ceramic samples were made in disk form that were 15 mm in diameter and 2 mm thick.
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Conclusion & Impact:The CIE - LAB system was used for determining overall color change (AE'ab).
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

The effect of accelerated aging time on color stability of intrinsically and extrinsically stained porcelain used in metal - ceramic restorations was investigated in this study. Metal ceramic samples were made in disk form that were 15 mm in diameter and 2 mm thick. Four groups were made and each group contained ten samples. Black stain was applied directly to the opaque in the first group (opaque stained group). The second group was made with the black stain interposing between 0.5 mm of body porcelain below and 0.5 mm of the same porcelain above (dentin stained group). A layer of black stain was applied over the enamel porcelain and this was the third group (enamel stained group). The fourth group was not stained (nonstained group). Color measurements were made after 300, 600, and 900 hours of accelerated aging time. The CIE - LAB system was used for determining overall color change (AE'ab). Chroma changes (AC'ab) and hue differences (AH'ab) were determined. Kruskal - Wallis Variance Analysis and Friedman Tests were used for statistical comparisons for analyzing AE*ab, AC*ab, and AH*ab. Nonsignificant differences in AE'ab, AC'ab, and AH*ab values for any of the groups were found for different aging times. Color differences were determined according to NBS units for all groups for different aging times. Color diferences (NBS units) that were determined for the groups varied in the acceptable range of 0.17 to 1.66. Aging times have not important effect on color characteristics of intrinsically and extrinsically stained porcelain used in metal - ceramic restorations.

Özet

Bu çalışmada hızlı yaşlanma zamanının, metal seramik restorasyonlarda iç ve dış boyama yapılmış porselendeki renk stabilitesine etkisi araştırıldı. Her bir grup için disk şeklinde 10 örnek hazırlandı. İlk grupta, siyah boya doğrudan opak üzerine uygulandı. İkinci grupta,siyah boya aynı porselenin 0.5 mm üzerinde, 0.5 mm dentin porseleninin altında olacak şekilde araya uygulandı. Üçüncü grup için, bir tabaka siyah boya mine porseleninin üzerine uygulandı. Dördüncü grup boyanmadı. Renk ölçümleri 300, 600 ve 900 saat yaşlandırma sonrası yapıldı. Toplam renk değişimini (A E* ab) belirlemek için CIE LAB sistemi kullanıldı. Chroma (AC*ab) ve hue (AH*ab) değişimleri belirlendi. İstatistiksel kıyaslamalar için Kruskal Wallis Varyans analizi ve Friedman testleri kullanıldı. Gruplar için farklı yaşlanma zamanlarında AE*ab, AC*ab ve AH*ab değerlerinde önemsiz farklılıklar bulundu. Renk değişiklikleri NBS birimine göre belirlendi ve gruplar için kabul edilebilir düzeyde bulundu. Yaşlandırma zamanının iç ve dış boyama yapılmış metal seramik restorasyonların renk özelliklerine önemsiz etkisi vardı.

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Cite This Article

ANIL, N., HEKİMOĞLU, C., ŞAHİN, N. (2022). İç ve dış boyama yapılan metal seramik restorasyonlarda hızlı yaşlanmanın porselen rengine etkisi. Hacettepe Dişhekimliği Fakültesi Derg.(. Clinical Dentistry and Research), Cilt: 30 - Sayı: 1, 90–96. https://ajindex.com/articles/528478

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References (19)

  1. Culpepper WD. A comparative study of shade matching procedures. J Prosthet Dent 1970; 24: 166
  2. Barghi N. Color and glaze: Effect of repeated firing. J Prosthet Dent 1982; 47: 393
  3. Barghi N, Richardson JT. A study of various factors influencing the shade of bonded porcelain. J Prosthet Dent 1978; 39: 282
  4. Barghi N, Goldenberg J. Porcelain shade stability after repeated firings. J Prosthet Dent 1977; 37: 173
  5. Barghi N, Lorenzana RE. Optimum thickness of opaque and body porcelain. J Prosthet Dent 1982; 48:429
  6. Anıl N, Bolay Ş. Effect of toothbrushing on the material loss, roughness, and color of intrinsically and extrinsically stained porcelain used in metal - ceramic restorations: An in vitro study. Int J Prosthodont 2002; 15: 483
  7. Aker DA, Aker JR., Sorensen SE. Toothbrush abrasion of color corrective porcelain stain applied to porcelain fused to metal restorations. J Prosthet Dent 1980; 44: 161
  8. Bativala F, Weiner S, Berendsen P, Vincent GR, Ianzano J, Harris W. The microscopic apperiance on extinsically stained metal - ceramic restorations. J Prosthet Dent 1987;57:47
  9. Razzoog M, Lang B, Russel M, May K. A comparison of the color stability of conventional and titanium dental porcelain. J Prosthet Dent 1994;72: 453
  10. Heydecke G, Zhang F, Razzoog M. In vitro color stability of double layer veneers after accelerated aging. J Prosthet Dent 2001; 85: 551
  11. Powers JM, Fan PL, Raptis CN. Color stability of new composite restorative materials under accelerated aging. J Dent Res 1980; 59: 2071
  12. Powers JM, Dennison JB, Koran A. Color stability of restorative resins under accelerated aging. J Dent Res 1978; 57: 964
  13. Wagner WC, Kawano F, Dootz ER, Koran A III. Dynamic viscoelastic properties of processed soft denture liners. Part I: Initial properties of processed soft denture liners. J Prosthet Dent 1995;73:471
  14. Hekimoğlu C, Anıl N. Sorption and solubility of soft denture liners after accelerated aging. Am J Dent 1999; 12: 44
  15. Anıl N, Hekimoğlu C, Şahin S. Color stability of heat polymerized and autopolymerized soft denture liners. J Prosthet Dent 1999; 81:481
  16. Hekimoğlu C, Anıl N; Etikan I. Effect of accelerated aging on the color stability of cemented laminate veneers. Int J Prosthodont 2000; 13: 29
  17. Wyszecki G, Stiles WS. Color Science: Concepts and methods. Quantitative Data and Formula, 2nd ed. New York: John Wiley; 1985
  18. Nimeroff I. Colorimetry. Natl Bureau Stand Monogr 1968; 47: 104
  19. Lund TW, S