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Veneering shade, veneering porcelain depth, and amount of firings should be carefully considered to acquire a suitable color match of the restorations that are definitive.
The L*a*b* worth of these specimens were influenced by the number of firings (3, 5, 7, or 9), veneering ceramic colors (A1 or A3) and veneering ceramic thicknesses (0.5, 1, or 1.5 mm). Significant interactions were current between the number of firings, veneering ceramic color, and veneering ceramic depth for L* (p < .001), respectively a* (de < .001), along with b* (p < .001) values.
Sixty disc‐shaped specimens with two different veneering ceramic colors (A1 or A3), also using three distinct ceramic thicknesses (0.5, 1, 2 or 1.5 mm), were fabricated from an alumina‐based ceramic system. Multiple firings (5, 3, 7, or 9 firings) were conducted, and colour varies (ΔE
No color change was observed between 3rd and 9th firings.
00) were determined using a spectrophotometer. Repeated‐measures ANOVA were used to analyze the data.
The colour of all‐ceramic restorations is among the main criteria to achieve esthetical success. Things like condensation techniques thickness, fire temperature, and numbers can influence the last colour of restoration. The purpose of the study was to investigate the colour changes in alumina‐based ceramic method based on ceramic color and thickness during the multiple firings.
Materials and Methods