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International journal of interdisciplinary dentistry

versión impresa ISSN 2452-5596versión On-line ISSN 2452-5588

Resumen

MARROQUIN-SOTO, Consuelo et al. Color stability of a monochromatic feldspar ceramic used in CAD/CAM system immersed in different staining solutions. Int. j interdiscip. dent. [online]. 2021, vol.14, n.2, pp.158-161. ISSN 2452-5596.  http://dx.doi.org/10.4067/S2452-55882021000200158.

Objective:

Determine the color stability of a monochromatic feldspathic ceramic used in CAD / CAM system subjected to immersion in different staining solutions.

Methods and materials:

90 monochromatic feldspathic ceramic discs were divided into 3 groups according to staining solution: distilled water, coffee and tea. Three color samples were taken: on days 0, 14 and 28, with a spectrophotometer. To determine the color difference (ΔE *), the 2nd and 1st measure were subtracted for the 14 days; and the 3rd and 2nd measure for the 28 days.

Results:

The results were interpreted using the National Standards Department Index (NBS). The sample immersed in distilled water presented values ΔE * 1,424 and ΔE * 1,233; the sample in coffee presented values ΔE * 3,327 and ΔE * 3,901; the sample immersed in tea presented values ΔE * 4,597 and ΔE * 5,201. Significant differences were obtained when comparing the chromatic stability in the three staining solutions at 14 and 28 days (p <0.001).

Conclusion:

There is a significant difference in the chromatic stability of a monochromatic feldspar ceramic subjected to immersion in different staining solutions. Marked color changes were obtained in the samples immersed in coffee and tea.

Palabras clave : Ceramics; Color; Solutions; Spectrophotometry; Coffee; Tea.

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