Comparison of Colour Stability of Lithium Disilicate, Indirect Resin Composite and Zirconia: An In Vitro Study

Authors : Erkut Kahramanoğlu, Mohammed Badwan

Pages : 66-71

Doi:10.29228/erd.73

View : 45 | Download : 59

Publication Date : 2024-08-29

Article Type : Research Paper

Abstract :Objective: The study was aimed to examine the colour stability of lithium disilicate, indirect resin composite and zirconia. Materials and Methods: One hundred and twenty samples were split into three groups (n=40) of materials lithium disilicate, indirect resin composite and zirconia (10 mm diameter and 1mm thick discs). Discs were cemented with three different dual cured resin cements. Thermocycling of 10000 cycles for 168 hours was applied to 20 specimens from each group. The samples then emerged in staining solutions (coffee and tea) for 7 days. Colour changes were measured at four different stages to determine ΔE using spectrophotometer. Results: The study results revealed a statistically significant difference between the materials before and after cementation and thermal cycle (p<0.05). Regarding staining solutions, the results also showed a statistically significant difference between three materials (p<0.05). No statistically significant difference was found between coffee and tea in terms of colour changing effects (p<0.05). Conclusion: Thermal cycle, cementation and staining solutions had an impact on the colour stability of three different materials. IPS e.max had the highest colour stability. Clinical significance: Colour stability is one of the main elements for the success of a dental treatment. Thus, staining resistance is an essential property for the longevity of aesthetic restorations.
Keywords : Lityum Disilikat, İndirekt Rezin Kompozit, zirkonya, Renk Stabilitesi, renklenme