SURFACE ROUGHNESS OF LITHIUM DISILICATE PRESS CERAMICS AFTER DIFFERENT TYPES OF POLISHING
Keywords:brushes, bur, paste, polishing
INTRODUCTION: The smoothness of a ceramic’s surface is very important of its esthetic and prophylactic qualities.
AIM: The purpose of this investigation is to study the possibilities of polishing lithium disilicate ceramics after making a correction on the glazed ceramic surface.
MATERIALS AND METHODS: The subject of the study were 20 test samples made of lithium disilicate press ceramics. They were divided into 4 groups according to the method of processing and polishing. Group 1 was treated with a red diamond bur and polishing set; Group 2 was treated with a green diamond bur and polishing set; Group 3 was treated with a red diamond bur, polishing set and diamond paste; Group 4 was treated with a diamond bur with green coding, polishing set and diamond paste. The samples were examined with an atomic force microscope to observe the change in surface relief. The reference point for comparison was the surface of the glazed ceramic.
RESULTS: After polishing with diamond paste, the surface became smoother compared to the treatment of the surface with a polishing kit alone.
CONCLUSION: Regardless of the polishing protocol used, there was a difference in the topography of the ceramic surface before and after treatment.
Alhabdan, A.A., El-Hadjazi A.A. (2015) Comparison of surface roughness of ceramics after polishing with different intraoral polishing systems using Profilometer and SEM, MedCrave. 2(3). https://doi.org/10.15406/jdhodt.2015.02.00050
Amaya-Pajares, S.P., Ritter A.V., Vera Resendiz C. et al. (2016) Effect of Finishing and Polishing on the Surface Roughness of Four Ceramic Materials after Occlusal Adjustment. Journal of Esthetic & Restorative Dentistry; 28(6):382-396. https://doi.org/10.1111/jerd.12222
Bollen, C.M.L., Lambrechts P., Quirynen M. (1997) Comparison of surface roughness of oral hard materials to the threshold surface roughness for bacterial plaque retention: a review of the literature. Dent Mater; 13:258–69. https://doi.org/10.1016/s0109-5641(97)80038-3
Camacho, G.B., Vinha D., Panzeri H., Nonaka T., Goncalves M. (2006) Surface roughness of a dental ceramic after polishing with different vehicles and diamond pastes. Brazilian Dental Journal. 17(3):191-4. https://doi.org/10.1590/s0103-64402006000300003
da Silva, T.M.A., Salvia C.R.D., de Carvalho R.F. et. al. (2014) Polishing for Glass Ceramics: Which Protocol? Journal of Prosthodontic Research. 58(3):160–70. https://doi.org/10.1016/j.jpor.2014.02.001
da Silva T.M., Salvia A.C., Carvalho R.F., Silva E.G., Pagani C. (2015) Effects of different polishing protocols on lithium disilicate ceramics. Braz Dent J. 26:478-483. https://doi.org/10.1590/0103-6440201300370
Heintze, S.D., Forjanic M., Rousson V. (2005, January) Surface roughness and gloss of dental materials as a function of force and polishing time in vitro. Dental materials. 22:146-165. https://doi.org/10.1016/j.dental.2005.04.013
Jones, C. S., Billington R. W., Pearson G. J. (2004) The in vivo perception of roughness of restorations. Br Dent J. 196(1):42-45. https://doi.org/10.1038/sj.bdj.4810881
Kisov H. (2019) Materialoznanie za stomatolozi [Dental Materials for Dentists]. 1st ed. Sofia: Sv. Kliment Ohridksi. 280-283 ISBN 9789540748221
Martinez-Gomis, J., Bizar J., Angland J.M. et al. (2003) Comparative evaluation of four finishing systems on one ceramic surface. Int. J Prosthodontics; 16(1):74-77. https://doi.org/10.1590/S0103-64402006000300003
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