Home Articles List Article Information
Alexandria Dental Journal
Journal Archive
Volume Volume 49 (2024)
Volume Volume 48 (2023)
Volume Volume 47 (2022)
Volume Volume 46 (2021)
Volume Volume 45 (2020)
Volume Volume 44 (2019)
Volume Volume 43 (2018)
Volume Volume 42 (2017)
Volume Volume 41 (2016)
Volume Volume 40 (2015)
Saad, S., Shalaby, Y., Azer, A., El-Sharkawy, F. (2019). SPECTROPHOTOMETER ANALYSIS OF CAD-CAM ZIRCONIA REINFORCED LITHIUM SILICATE AND LITHIUM DISILICATE GLASS CERAMICS. Alexandria Dental Journal, 44(3), 53-58. doi: 10.21608/adjalexu.2019.63558
Sherine A. Saad; Yousreya A. Shalaby; Amir S. Azer; Fatma M. El-Sharkawy. "SPECTROPHOTOMETER ANALYSIS OF CAD-CAM ZIRCONIA REINFORCED LITHIUM SILICATE AND LITHIUM DISILICATE GLASS CERAMICS". Alexandria Dental Journal, 44, 3, 2019, 53-58. doi: 10.21608/adjalexu.2019.63558
Saad, S., Shalaby, Y., Azer, A., El-Sharkawy, F. (2019). 'SPECTROPHOTOMETER ANALYSIS OF CAD-CAM ZIRCONIA REINFORCED LITHIUM SILICATE AND LITHIUM DISILICATE GLASS CERAMICS', Alexandria Dental Journal, 44(3), pp. 53-58. doi: 10.21608/adjalexu.2019.63558
Saad, S., Shalaby, Y., Azer, A., El-Sharkawy, F. SPECTROPHOTOMETER ANALYSIS OF CAD-CAM ZIRCONIA REINFORCED LITHIUM SILICATE AND LITHIUM DISILICATE GLASS CERAMICS. Alexandria Dental Journal, 2019; 44(3): 53-58. doi: 10.21608/adjalexu.2019.63558

SPECTROPHOTOMETER ANALYSIS OF CAD-CAM ZIRCONIA REINFORCED LITHIUM SILICATE AND LITHIUM DISILICATE GLASS CERAMICS

Article 11, Volume 44, Issue 3, December 2019, Page 53-58  XML PDF (523.76 K)
Document Type: Original Article
DOI: 10.21608/adjalexu.2019.63558
View on SCiNiTO View on SCiNiTO
Authors
Sherine A. Saad email 1; Yousreya A. Shalaby2; Amir S. Azer3; Fatma M. El-Sharkawy
1BDS, MS, Faculty of Dentistry, Alexandria University.Egypt.
2Professor of Fixed Prosthodontic, Conservative Department, Faculty of Dentistry, Alexandria University.Egypt.
3Researcher of Photometry Department, National Institute of Standards, Cairo, Egypt.
Abstract
INTRODUCTION: Matching dental ceramic translucency is the optimal esthetic goal in restorative dentistry. Several types of ceramics evolved over the years in an attempt to optimize physical mechanical and optical properties of the previous types. OBJECTIVES: The aim of this study is to compare and analyze light transmission, light reflection and light absorption of high translucency zirconia reinforced lithium silicate ceramic, low translucency zirconia reinforced lithium silicate ceramic, high translucency lithium disilicate glass-ceramic and low translucency lithium disilicate glass-ceramic. MATERIALS AND METHODS: Serial cutting of the E.max cad and Vita suprinity blocks was done using isomet 4000 micro-saw microtome. Ten ceramic specimens were obtained for each material, 5 of which were 1.5 mm thick and the other 5 were 1 mm thick to be veneered by 0.5 mm of the corresponding veneering material according to manufacturer's instruction. Spectrophotometric analysis was carried out for the forty ceramic specimens. RESULTS: Light transmission for the four groups of zirconia reinforced lithium silicate was significantly higher than their corresponding groups of lithium disilicate (p < 0.005). Light reflection and light absorption for the four groups of zirconia reinforced lithium silicate was significantly lower than their corresponding groups of lithium disilicate (p < 0.005). Veneering increased light transmission and light reflection however it decreased light absorption for both materials significantly. CONCLUSIONS: Translucency of zirconia reinforced lithium silicate is better than lithium disilicate. Veneering improved optical properties for both zirconia reinforced lithium silicate and lithium disilicate.
Keywords
Spectrophotometer; translucency; zirconia reinforced lithium silicate; Lithium Disilicate
References
  1. Davis LG, Ashworth PD, Spriggs LS. Psychological effects of aesthetic dental treatment. J Dent. 1998;26:547-54.
  2. Amelinckx S, Dekeyser W. The Structure and Properties of Grain Boundaries. In: Seitz F, Turnbull D (eds).Solid state physics, advances in research and applications. Academic Press; 1959. p 325-499.
  3. McLean JW, Hubbard JR, Kedge MI. The science and art of dental ceramics. Chicago: Quintessence Pub. Co.; 1980.
  4. McLaren EA, Cao PT. Ceramics in dentistry—part I: classes of materials. Inside Dent.2009;5:94-103.
  5. Zheng X, Wen G, Song L, Huang XX. Effects of P25 and Heat Treatment on Crystallization and Microstructure in Lithium Disilicate Glass Ceramics. Acta Mater. 2008;56:549–58.
  6. Xiao Z, Zhou J, Wang Y, Luo M. Microstructure and Properties of Li2O-Al2O3-SiO2-P2O5 Glass-Ceramics. Open Mater Sci J. 2011;5:45–50.
  7. Krüger S, Deubener J, Ritzberger C, Höland W. Nucleation kinetics of lithium metasilicate in ZrO2‐bearing lithium disilicate glasses for dental application. Int J Appl Glass Sci. 2013;4:9-19.
  8. Blum P. Reflectance spectrophotometry and colorimetry. PP Handbook .1997:2-11
  9. Swinehart DF. The Beer-Lambert Law. J Chem Educ. 1962;39:333.
  10. Kotz S, Balakrishnan N, Read CB, Vidakovic B. Encyclopedia of statistical sciences Hoboken, N.J.: WileyInterscience; 2013. Available at: http://www.credoreference.com/book/wileyenstsc.
  11. Kirkpatrick LA, Feeney BC. A simple guide to IBM SPSS statistics for version 20.0. Student ed. Belmont, Calif.: Wadsworth, Cengage Learning; 2013.
  12. Cal E, Guneri P, Kose T. Comparison of digital and spectrophotometric measurements of colour shade guides. J Oral Rehabil. 2006;33:221-8.
  13. Bahgat S, Basheer R, El Sayed S. Effect of Zirconia addition to lithium disilicate ceramic on translucency and bond strength using different adhesive strategies. EDJ. 2015;61:4519-33.
  14. Apel E, van’tHoen C, Rheinberger V, Höland W. Influence of ZrO 2 on the crystallization and properties of lithium disilicate glass-ceramics derived from a multi-component system. J Eur Ceram Soc.2007;27:1571-7.
  15. Sen N, Us YO. Mechanical and optical properties of monolithic CAD-CAM restorative materials. J Prosthet Dent.2018;119:593-9.
  16. Lee YK. Influence of scattering/absorption characteristics on the color of resin composites. Dent Mater. 2007;23:124- 31.
  17. Heffernan MJ, Aquilino SA, Diaz-Arnold AM, Haselton DR, Stanford CM, Vargas MA. Relative translucency of six all-ceramic systems. Part I: core materials. J Prosthet Dent. 2002;88:4-9.
  18. Vichi A, Carrabba M, Paravina R, Ferrari M. Translucency of ceramic materials for CEREC CAD/CAM system. J EsthetRestor Dent. 2014;26:224-31.
  19. Powers JM, Dennison JB, Lepeak PJ. Parameters that affect the color of direct restorative resins. J Dent Res. 1978;57:876-80.
  20. Miyagawa Y, Powers JM, O'Brien WJ. Optical properties of direct restorative materials. J Dent Res. 1981;60:890-4.
  21. Nogueira AD, Della Bona A. The effect of a coupling medium on color and translucency of CAD-CAM ceramics. J Dent. 2013;41(Suppl 3):e18-23.
  22. Barizon KT, Bergeron C, Vargas MA, Qian F, Cobb DS, Gratton DG, et al. Ceramic materials for porcelain veneers. Part I: Correlation between translucency parameters and contrast ratio. J Prosthet Dent. 2013;110:397-401.
  23. Spink LS, Rungruanganut P, Megremis S, Kelly JR. Comparison of an absolute and surrogate measure of relative translucency in dental ceramics. Dent Mater. 2013;29:702-7.
  24. Beall GH, Pinckney LR. Nanophase glass‐ceramics. J Am Ceram Soc 1999;82:5-16.
  25. Dias MC, Piva E, de Moraes RR, Ambrosano GM, Sinhoreti MA, Correr-Sobrinho L. UV-Vis spectrophotometric analysis and light irradiance through hot-pressed and hot-pressed-veneered glass ceramics. Braz Dent J. 2008;19:197-203.
  26. Antonson SA, Anusavice KJ. Contrast ratio of veneering and core ceramics as a function of thickness. Int J Prosthodont. 2001;14:316-20.
  27. Zhang Y, Griggs JA, Benham AW. Influence of powder/liquid mixing ratio on porosity and translucency of dental porcelains. J Prosthet Dent. 2004;91:128-35.
  28. 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.
  29. Wood DL, Nassau K. Refractive index of cubic zirconia stabilized with yttria. Appl Opt. 1982;21:2978-81.
  30. Helvey GA. Inside Dentistry. Classification of dental ceramics.Washington Crossing, PA : AEGIS Communications Partnership;2013. p 62-80
  31. Kern M, Thompson VP, Beuer F,Edelhoff D, Frankenberger R,Kohal RJ, et al. All ceramic at a glance. 3rd ed. 2017.
  32. IvoclarVivadent. Scientific Documentation IPS e.max® Ceram.
  33. Della Bona A, Kelly JR. The clinical success of allceramic restorations. J Am Dent Assoc. 2008;139(Suppl):8s-13s.
  34. VITA Zahnfabrik H. Vita Suprinity working instructions. 2015.
  35. Jefferies SR. Abrasive finishing and polishing in restorative dentistry: a state-of-the-art review. Dent Clin North Am. 2007;51:379-97.
  36. Binns D. The chemical and physical properties of dental porcelain. In: McLean JW (ed). Proceedings of the First International Symposium on Ceramics. Chicago. 1983.
  37. Kingery WD, Bowen HK, Uhlmann DR. Introduction to ceramics. 2nded. New York: John Wiley and Sons; 1976.p646-89.
  38. Da Cunha LF, Mukai E, Hamerschmitt RM, Correr GM. Fabrication of lithium silicate ceramic veneers with a CAD/CAM approach: a clinical report of cleidocranial dysplasia. J Prosthet Dent. 2015;113:355-9.
Statistics
Article View: 551
PDF Download: 1,047