Masking ability of two ceramics with different thicknesses on various substrates

Main Article Content

Porak Sethakamnerd
Chalermpol Leeviloj

Abstract

Objective: The objective of this study was to examine the influence of material type, thickness, and substrate color on the masking ability of two ceramics on various substrates.


Materials and methods: In total, 36 disc-shaped specimens (15 mm in diameter × 0.5- and 1.0-mm thicknesses) were fabricated from lithium disilicate glass ceramic (IPS e.max Press, n = 6), high-translucent zirconia (Lava Plus, n = 6), and high-translucent zirconia with liner material (Lava Plus/Liner, n = 6). Contrast ratios were measured over white and black substrates. Color differences were measured over different substrates: white, black, metal, and resin composite shades A2, A3, and C4. White and A2 substrates were used as reference groups. Contrast ratio and color difference values were analyzed with linear regression (P<0.05).


Results: Contrast ratios in the IPS e.max Press group at 0.5 and 1.0 mm showed the highest values (0.73 ± 0.04 and 0.87 ± 0.01) when compared with those in the Lava Plus and Lava Plus/Liner groups. IPS e.max Press at both thicknesses showed the highest masking ability over various substrates. Higher contrast ratio and masking ability were significantly related to thicker material. Material type, thickness, and substrate were significantly related to masking ability.


Conclusion: Ceramic type, thickness, and substrate color are strongly associated with contrast ratio and masking ability, both of which increase as thickness increases.


Clinical implications: Increased ceramic thickness could benefit masking ability. For improved masking ability, IPS e.max Press is recommended over Lava Plus and Lava Plus/Liner for the masking of dark substrates.

Downloads

Download data is not yet available.

Article Details

How to Cite
1.
Sethakamnerd P, Leeviloj C. Masking ability of two ceramics with different thicknesses on various substrates. M Dent J [Internet]. 2020 Oct. 21 [cited 2023 Dec. 4];37(2):233-42. Available from: https://he02.tci-thaijo.org/index.php/mdentjournal/article/view/246859
Section
Original articles

References

1. Kelly JR, Nishimura I, Campbell SD. Ceramics in dentistry: historical roots and current perspectives. J Prosthet Dent 1996;75:18-32.
2. Shono NN, Al Nahedh HN. Contrast ratio and masking ability of three ceramic veneering materials. Oper Dent 2012;37:406-416.
3. Bichacho N. Porcelain laminates: integrated concepts in treating diverse aesthetic defects. Pract Perio Aesthet Dent 1995;7:13-23.
4. Calamia JR, Calamia CS. Porcelain laminate veneers: reasons for 25 years of success. Dent Clin North Am 2007;51:399-417.
5. Li Q, Yu H, Wang YN. Spectrophotometric evaluation of the optical influence of core build-up composites on all-ceramic materials. Dent Mater 2009;25:158-165.
6. Azer SS, Rosenstiel SF, Seghi RR, Johnston WM. Effect of substrate shades on the color of ceramic laminate veneers. J Prosthet Dent 2011;106:179-183.
7. Chaiyabutr Y, Kois JC, Lebeau D, Nunokawa G. Effect of abutment tooth color, cement color, and ceramic thickness on the resulting optical color of a CAD/CAM glass-ceramic lithium disilicate-reinforced crown. J Prosthet Dent 2011;105:83-90.
8. Heffernan MJ, 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.
9. Seghi RR, Johnston WM, O'Brien WJ. Spectrophotometric analysis of color differences between porcelain systems. J Prosthet Dent 1986;56:35-40.
10. Turgut S, Bagis B. Effect of resin cement and ceramic thickness on final color of laminate veneers: an in vitro study. J Prosthet Dent 2013;109:179-186.
11. Wee AG, Monaghan P, Johnston WM. Variation in color between intended matched shade and fabricated shade of dental porcelain. J Prosthet Dent 2002;87:657-666.
12. Brodbelt RH, O'Brien WJ, Fan PL. Translucency of dental porcelains. J Dent Res 1980;59:70-75.
13. Heffernan MJ, Diaz-Arnold AM, Haselton DR, Stanford CM, Vargas MA. Relative translucency of six all-ceramic systems. Part I: Core materials. J Prosthet Dent 2002;88.
14. Chen YM, Smales RJ, Yip KH, Sung WJ. Translucency and biaxial flexural strength of four ceramic core materials. Dent Mater 2008;24:1506-1511.
15. Johnston WM. Review of translucency determinations and applications to dental materials. J Esthet Restor Dent 2014;26:217-223.
16. Seghi RR, Hewlett ER, Kim J. Visual and instrumental colorimetric assessments of small color differences on translucent dental porcelain. J Dent Res 1989;68:1760-1764.
17. Antonson SA, Anusavice KJ. Contrast ratio of veneering and core ceramics as a function of thickness. Int J Prosthodont 2001;14:316-320.
18. Chu FC, Chow TW, Chai J. Contrast ratios and masking ability of three types of ceramic veneers. J Prosthet Dent 2007;98:359-364.
19. Johnston WM, Kao EC. Assessment of appearance match by visual observation and clinical colorimetry. J Dent Res 1989;68:819-822.
20. Ruyter IE, Nilner K, Møller B. Color stability of dental composite resin materials for crown and bridge veneers. Dent Mater 1987;3:246-251.
21. Vichi A, Ferrari M, Davidson CL. Influence of ceramic and cement thickness on the masking of various types of opaque posts. J Prosthet Dent 2000;83:412-417.
22. Chu FC, Sham AS, Luk HW, Andersson B, Chai J, Chow TW. Threshold contrast ratio and masking ability of porcelain veneers with high-density alumina cores. Int J Prosthodont 2004;17:24-28.
23. Barizon KTL, Vargas MA, Qiand F, Cobb DS, Gratton DG, Geraldeli S. Ceramic materials for porcelain veneers. Part I: Correlation between translucency parameters and contrast ratio. J Prosthet Dent 2013;110.
24. Aboushelib MN, Dozic A, Liem JK. Influence of framework color and layering technique on the final color of zirconia veneered restorations. Quintessence Int 2010;41:e84-e89.
25. Yaman P, Qazi SR, Dennison JB, Razzoog ME. Effect of adding opaque porcelain on the final color of porcelain laminates. J Prosthet Dent 1997;77:136-140.
26. Yu B, Lee Y-K. Measurement of translucency of tooth enamel and dentin. Acta Odontol Scand 2009;67.
27. O'Keefe KL, Pease PL, Herrin HK. Variables affecting the spectral transmittance of light through porcelain veneer samples. J Prosthet Dent 1991;66:434-438.
28. Ozturk O, Celik VG. The effect of ceramic thickness and number of firings on the color of two all-ceramic systems. J Prosthet Dent 2009;100.
29. Ilie N, Stawarczyk B. Quantification of the amount of light passing through zirconia: the effect of material shade, thickness, and curing conditions. J Dent 2014;42:684-690.
30. Fabbri G, Mancini R, Marinelli V, Ban G. Anterior discolored teeth restored with procera all-ceramic restorations: a clinical evaluation of the esthetic outcome based on the thickness of the core selected. Eur J Esthet Dent 2011;6:76-86.
31. Kim JH, Kim KB, Kim WC, Kim HY, Kim JH. Evaluation of the color reproducibility of all-ceramic restorations fabricated by the digital veneering method. J Advanced Prosthod 2014;6:71-78.
32. Vichi A, Ferrari M, Davidson CL. Color and opacity variations in three different resin-based composite products after water aging. Dent Mater 2004;20:530-534.