30 June 2023: Lab/In Vitro Research
Comparison of Composite Resin (Duo-Shade) Shade Guide with Vita Ceramic Shades Before and After Chemical and Autoclave Sterilization
Shekhar Gupta 1ABCE* , Mohammed E. Sayed 1ABEFG* , Bharti Gupta 2CDEF , Aditya Patel 3ACDE , Khurshid Mattoo 1ACDE , Noura Turki Alotaibi 4ACDE , Salha I. Alnemi 5CDEF , Hossam F. Jokhadar 6CDEF , Boshra Mohammed Mashhor 7CDEG , Maha Abdu Othman 8CDEF , Maryam H. Mugri 2ACDE , Amit Porwal 1BCEF , Shankargouda Patil 9CDEFDOI: 10.12659/MSM.940949
Med Sci Monit 2023; 29:e940949
Table 2 Mean and standard deviation for CIE color coordinates for L*, a* and b* values and their relative degree of color differences (ΔE) between stock Composite shade guide and Vita Classical shade guide tabs.
| Shade guide | Shade tabs | (CIE) L* | (CIE) a* | (CIE) b* | Differences in mean ΔE | |
|---|---|---|---|---|---|---|
| Brilliant NG Universal Duo-shade | Shade A1B1 | 74.10±1.39 | −1.20±0.19 | 19.87±1.52 | VA1=4.96 (0.6) *** | VB1 = 4.06 (0.8) *** |
| Shade A2B2 | 70.08±2.06 | 1.10±0.35 | 24.38±1.81 | VA2=4.13 (0.3) *** | VB2 = 5.23 (0.2) *** | |
| Shade A3D3 | 70.10±1.43 | −0.25±0.09 | 28.02±1.29 | VA3=5.82 (0.3) *** | VB3 =3.86 (0.7) *** | |
| Shade A3.5B3 | 67.10±1.38 | 1.49±0.78 | 35.10±2.41 | VA3.5=4.23 (1.2) *** | VB3 = 5.32 (0.4) *** | |
| Shade C2C3 | 70.10±2.59 | 1.52±0.6 | 16.45±1.66 | VC2=0.47 (0.1) (NS) | VC3 = 1.71 (0.6) ** | |
| Shade A4 C4 | 64.91±1.71 | 1.68±1.15 | 18.08±1.55 | VA4=1.6 (0.2) ** | VC4 = 0.36 (0.3) (NS) | |
| Vita classical | Shade VA1 | 79.53±2.29 | −1.71±0.78 | 15.59±1.39 | – | – |
| Shade VA2 | 75.14±1.72 | −0.30±0.23 | 17.49±1.25 | – | – | |
| Shade VA3 | 75.16±1.77 | −1.86±0.46 | 18.72±0.77 | – | – | |
| Shade VA3.5 | 71.32±2.46 | 1.33±0.20 | 20.20±1.45 | – | – | |
| Shade VA4 | 67.09±1.62 | 1.78±0.62 | 21.39±2.41 | – | – | |
| Shade VB1 | 79.42±1.29 | 1.66±0.27 | 13.25±1.78 | – | – | |
| Shade VB2 | 75.86±1.46 | −1.82±0.59 | 16.73±1.37 | – | – | |
| Shade VB3 | 73.89±1.4 | 0.87±0.30 | 23.24±1.74 | – | – | |
| Shade VC2 | 70.67±1.57 | −0.67±0.27 | 15.27±1.65 | – | – | |
| Shade VC3 | 67.64±1.45 | −0.23±0.08 | 16.28±2.26 | – | – | |
| Shade VC4 | 64.06±1.29 | 1.12±0.11 | 17.56±1.14 | – | – | |
| Shade VD3 | 72.44±1.10 | 0.75±0.20 | 15.91±1.51 | – | – | |