Effect of brand and shade of resin cements on the final color of lithium disilicate ceramic
| Autor: | Burak Yilmaz, Gözlem Ceylan, Doğu Ömür Dede |
|---|---|
| Přispěvatelé: | Ondokuz Mayıs Üniversitesi |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Cement
Materials science Color difference Prosthesis Coloring 030206 dentistry 02 engineering and technology In Vitro Techniques 021001 nanoscience & nanotechnology Dental Porcelain Resin Cements 03 medical and health sciences 0302 clinical medicine Dental porcelain Spectrophotometry visual_art visual_art.visual_art_medium Lithium disilicate Humans Ceramic Oral Surgery Composite material 0210 nano-technology Color coordinates Resin cement |
| DOI: | 10.1016/j.prosdent.2016.07.014 |
| Popis: | dede, dogu omur/0000-0003-1021-5702; Yilmaz, Burak/0000-0002-7101-363X WOS: 000398876900016 PubMed: 27765394 Statement of problem. Resin cements are available in various shades from different manufacturers. However, there is no standard for the optical properties of these cements, which may result in differences in the color of translucent ceramic restorations. Purpose. The purpose of this in vitro study was to evaluate the effects of different shades and brands of resin cements on the color of a lithium disilicate ceramic. Materials and methods. Ten ceramic disks (11x1.5 mm, shade A2) were fabricated from lithium disilicate high-translucency blocks. Eighty cement disks (11x0.2 mm) were fabricated from 4 brands (Maxcem; Variolink; Clearfil; and RelyX) of resin cements in translucent and universal (shade A2) shades. Color measurements of ceramic specimens were made without (control) and with each brand/shade of resin cement material (test) with a spectrophotometer, and International Commission on Illumination Lab (CIELab) color coordinates were recorded. Color differences (Delta E-00) between the control and test groups were calculated. Delta E-00 results were analyzed by 2-way ANOVA and subsequent pairwise testing. Comparisons were performed using the Student t test, and then all P values were corrected with the step-down Bonferroni procedure (alpha=.05). Results. The effect on the Delta E-00 values (P2.25) were observed only for Variolink_translucent cement (2.36). Conclusions. Same-shade resin cements from different manufacturers had different effects on the color of lithium disilicate ceramic. The effects of different shades of resin cements from the same manufacturer on the color of lithium disilicate ceramic were statistically different for only RelyX, which may also be considered clinically different based on clinical acceptability thresholds for color difference values (Delta E-00). Accordingly, this effect may be considered clinically different for Variolink but not clinically different for Maxcem and Clearfil. |
| Databáze: | OpenAIRE |
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