Table 2. Means and standard deviations of the ∆E values from two spectrophotometer devices in different material groups after thermocycling in different staining solutions.
Spectrophotometer Devices: VITA Easyshade® Advance (VITA Zahnfabrik, Baden-Wurttemberg, Germany); Color-Eye® 7000A (X-Rite, Inc., Grand Rapids, Michigan, United States)
Material Groups: ACTIVA™ Bioactive (Pulpdent Corporation, Massachusetts, United States); Beautifil II (SHOFU Inc., Kyoto, Japan); Fuji II (GC Corporation, Tokyo Japan); and Filtek™ Z350 XT (3M, Minnesota, United States)
Staining Solutions: coffee (Nescafe; Nestlé S.A., Vaud, Switzerland); black tea (Lipton Black Tea; Lipton Teas and Infusions, Rotterdam, Netherlands); cola (Coca-Cola; The Coca-Cola Company, Atlanta, Georgia, United States); mixed berry juice (Almarai Mixed Berry Juice; Almarai Company, Riyadh, Saudi Arabia); saline (Pharmaceutical Solutions Industry Ltd, Jeddah, Saudi Arabia)
| Materials | Solutions | VITA Easyshade® Advance | Color-Eye® 7000A | |||||||||||
| Mean | SD | P-Value | Mean | SD | P-Value | |||||||||
| ACTIVA™ Bioactive | Coffee | 25.24 | ± 3.61 | 0.002* | 10.83 | ± 1.83 | 0.358ns | |||||||
| Tea | 12.48 | ± 1.66 | 0.011* | 5.6 | ± 0.94 | 0.003* | ||||||||
| Berry | 12.99 | ± 2.69 | 0.008* | 3.62 | ± 0.39 | 0.063ns | ||||||||
| Cola | 13.47 | ± 2.65 | 0.001* | 2.33 | ± 0.2 | 0.013* | ||||||||
| Saline | 7.9 | ± 2.07 | 0.013* | 3.09 | ± 0.56 | 0.002* | ||||||||
| Beautifil II | Coffee | 32.34 | ± 2.22 | 0.054ns | 21.92 | ± 1.29 | 0.028* | |||||||
| Tea | 35.27 | ± 3.61 | 0.005* | 26.65 | ± 3.24 | 0.026* | ||||||||
| Berry | 38.99 | ± 6.84 | 0.186ns | 10.08 | ± 2.7 | 0.324ns | ||||||||
| Cola | 20.47 | ± 3.75 | 0.003* | 17.95 | ± 3.75 | 0.011* | ||||||||
| Saline | 12.22 | ± 1.71 | <0.001* | 1.68 | ± 0.36 | 0.415ns | ||||||||
| Fuji II | Coffee | 49.66 | ± 4.9 | 0.004* | 24.46 | ± 5.13 | 0.001* | |||||||
| Tea | 61.83 | ± 7.14 | 0.052ns | 31.81 | ± 4.01 | <0.001* | ||||||||
| Berry | 58.77 | ± 1.26 | <0.001* | 37.32 | ± 4.06 | 0.009* | ||||||||
| Cola | 29.98 | ± 3.26 | <0.001* | 5.84 | ± 1.62 | 0.080ns | ||||||||
| Saline | 5.46 | ± 0.82 | 0.030* | 2.37 | ± 0.55 | 0.897ns | ||||||||
| Filtek™ Z350 XT | Coffee | 46.82 | ± 7.55 | 0.027* | 34.87 | ± 3.45 | 0.013* | |||||||
| Tea | 41.54 | ± 6.59 | 0.029* | 36.53 | ± 2.41 | <0.001* | ||||||||
| Berry | 43.54 | ± 4.22 | 0.034* | 26.59 | ± 4.05 | 0.035* | ||||||||
| Cola | 4.11 | ± 0.74 | 0.003* | 2.25 | ± 0.68 | 0.138ns | ||||||||
| Saline | 5.15 | ± 0.78 | 0.102ns | 1.46 | ± 0.25 | 0.357ns | ||||||||