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Utilização da técnica de estratificação sobre uma cerâmica vítrea e sua eficácia na regularização de substratos com alteração de cor

RESUMO

Restabelecer o biomimetismo de dentes com alteração de cor é um grande desafio ao clínico. Contudo, atualmente, há uma grande gama de cerâmicas odontológicas com diferentes opacidades e translucidez que, em conjunto com os cimentos resinosos de diferentes cores, pode promover uma harmonização entre substratos de cores diferentes. Com isto, apresentaremos um trabalho realizado com uma cerâmica à base de silicato de lítio reforçado com dióxido de zircônia (Suprinity/VITA Zahnfabrik), cujo objetivo foi regularizar biomimeticamente as alterações de forma e cor no substrato do dente afetado.

Palavras-chave – Dissilicato de lítio reforçado com zircônia; Cor dentária; Cimentos odontológicos; Espessura de cerâmica.

ABSTRACT

Restoring altered tooth colors using biomimetics is a major clinical challenge. However, there is a wide range of dental ceramics nowadays with different opacities and translucencies that, together with resin cements of different colors can generate balance between many color substrates. This clinical case reports the use of a zirconium dioxide-reinforced lithim disilicate (Suprinity/VITA Zahnfabrik) with the aim to biomimetically control those changes affecting the shape and color of tooth substrates.

Key words – Zirconia-reinforced lithum disilicate; Tooth color; Luting cement; Ceramic thickness.

Referências

  1. Miyazaki T, Hotta Y, Kunii J, Kuriyama S, Tamaki Y. A review of dental CAD/CAM: current status and future perspectives from 20 years of experience. Dent Mater J 2009;28(1):44-56.
  2. Silva NR, Bonfante EA, Rafferty BT, Zavanelli RA, Rekow ED, Thompson VP et al. Modified Y-TZP core design improves all-ceramic crown reliability. J Dent Res 2011;90(1):104-8.
  3. Guess PC, Zavanelli RA, Silva NR, Bonfante EA, Coelho PG, Thompson VP. Monolithic CAD/CAM lithium disilicate versus veneered Y-TZP crowns: comparison of failure modes and reliability after fatigue. Int J Prosthodont 2010;23(5):434-42.
  4. Muhlemann S, Benic GI, Fehmer V, Hammerle CHF, Sailer I. Clinical quality and efficiency of monolithic glass ceramic crowns in the posterior area: digital compared with conventional workflows. Int J Comput Dent 2018;21(3):215-23.
  5. Sailer I, Benic GI, Fehmer V, Hammerle CHF, Muhlemann S. Randomized controlled within- subject evaluation of digital and conventional workflows for the fabrication of lithium disilicate single crowns. Part II: CAD-CAM versus conventional laboratory procedures. J Prosthet Dent 2017;118(1):43-8.
  6. Silva NR, Bonfante EA, Martins LM, Valverde GB, Thompson VP, Ferencz JL et al. Reliability of reduced-thickness and thinly veneered lithium disilicate crowns. J Dent Res 2012;91(3):305-10.
  7. Zeltner M, Sailer I, Muhlemann S, Ozcan M, Hammerle CH, Benic GI. Randomized controlled within-subject evaluation of digital and conventional workflows for the fabrication of lithium disilicate single crowns. Part III: marginal and internal fit. J Prosthet Dent 2017;117(3):354-62.
  8. Johansson C, Kmet G, Rivera J, Larsson C, Vult von Steyern P. Fracture strength of monolithic all-ceramic crowns made of high translucent yttrium oxide-stabilized zirconium dioxide compared to porcelain-veneered crowns and lithium disilicate crowns. Acta Odontol Scand 2014;72(2):145-53.
  9. Johnston WM, O’Brien WJ, Tien TY. The determination of optical absorption and scattering in translucent porcelain. Color Res Appl 1986;11(2):125-30.
  10. Badawy R, El-Mowafy O, Tam LE. Fracture toughness of chairside CAD/CAM materials – alternative loading approach for compact tension test. Dent Mater 2016;32(7):847-52.
  11. Belli R, Wendler M, de Ligny D, Cicconi MR, Petschelt A, Peterlik H et al. Chairside CAD/CAM materials. Part 1: measurement of elastic constants and microstructural characterization. Dent Mater 2017;33(1):84-98.
  12. Sen N, Us YO. Mechanical and optical properties of monolithic CAD-CAM restorative materials. J Prosthet Dent 2018;119(4):593-9.
  13. Elsaka SE, Elnaghy AM. Mechanical properties of zirconia reinforced lithium silicate glass- ceramic. Dent Mater 2016;32(7):908-14.
  14. Chaiyabutr Y, Kois JC, LeBeau D, Nunokawa G. Effects of abutment 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(2):83-90.
  15. Wang H, Xiong F, Zhenhua L. Influence of varied surface texture of dentin porcelain on optical properties of porcelain specimens. J Prosthet Dent 2011;105(4):242-8.
  16. Volpato CA, Monteiro S, de Andrada MC, Fredel MC, Petter CO. Optical influence of the type of illuminant, substrate and thickness of ceramic materials. Dent Mater 2009;25(1):87-93.
  17. Dozic A, Kleverlaan CJ, Meegdes M, Ven der Zel J, Feilzer AJ. The influence of porcelain layer thickness on the final shade of ceramic restorations. J Prosthet Dent 2003;90(6):563-70.
  18. Toman M, Toksavul S. Clinical evaluation of 121 lithium disilicate all-ceramic crowns up to 9 years. Quintessence Int 2015;46(3):189-97.
  19. Suputtamongkol K, Tulapornchai C, Mamani J, Kamchatphai W, Thongpun N. Effect of the shades of background substructures on the overall color of zirconia-based all-ceramic crowns. J Adv Prosthodont 2013;5(3):319-25.
  20. Niu E, Agustin M, Douglas RD. Color match of machinable lithium disilicate ceramics: effects of cement color and thickness. J Prosthet Dent 2014;111(1):42-50.
  21. Pires LA, Novais PMR, Araújo VD, Pegoraro LF. Effects of the type and thickness of ceramic, substrate, and cement on the optical color of a lithium disilicate ceramic. J Prosthet Dent 2017;117(1):144-9.
  22. Passos L, Linke B, Street A, Torrealba Y. Effect of thickness, translucency, and firing protocol on the masking ability of a CAD/CAM zirconia-reinforced lithium silicate for different backgrounds. Int J Comput Dent 2019;22(1):29-38.
  23. 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(2):83-90.
  24. Rinke S, Pabel AK, Rödiger M, Ziebolz D. Chairside fabrication of an all-ceramic partial crown using a zirconia-reinforced lithium silicate ceramic. Case Rep Dent 2016;2016:1354186.
  25. Denry I, Kelly JR. Emerging ceramic-based materials for dentistry. J Dent Res 2014;93(12):1235-42.
  26. Guess PC, Kulis A, Witkowski S, Wolkewitz M, Zhang Y, Strub JR. Shear bond strengths between different zirconia cores and veneering ceramics and their susceptibility to thermocycling. Dent Mater 2008;24(11):1556-67.
  27. Sailer I, Gottnerb J, Kanelb S, Hammerle CH. Randomized controlled clinical trial of zirconia-ceramic and metal-ceramic posterior fixed dental prostheses: a 3-year follow-up. Int J Prosthodont 2009;22(6):553-60.
  28. Zhang Y, Lee JJW, Srikanth R, Law BR. Edge chipping and flexural resistance of monolithic ceramics. Dent Mater 2013;29(12):1201-8.
  29. Choi YJ, Razzog ME. Maskingability of zirconia with and without veneering porcelain. J Prosthodont 2013;22(2):98-104.
  30. Begum Z, Chheda P, Shruthi CS, Sonika R. Effect of ceramic thickness and luting agent shade on the color masking ability of laminate veneers. J Indian Prosthodont Soc 2014;14(5):46-50.
  31. 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(3):179-86.
  32. Mostafa D, Taymor M, Mohammed R. Effect of resin cement shades & thickness of zirconia reinforced lithium silicate ceramics (Vita Suprinity) on the optical properties using dark background compared to lithium disilicate glass ceramics (an in vitro study). J Dent Med Sci 2019;18(8):77-86.

 

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