30 June 2023 : Laboratory 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 Gupta2CDEF, Aditya Patel3ACDE, Khurshid Mattoo 1ACDE, Noura Turki Alotaibi 4ACDE, Salha I. Alnemi 5CDEF, Hossam F. Jokhadar 6CDEF, Boshra Mohammed Mashhor 7CDEG, Maha Abdu Othman 7CDEF, Maryam H. Mugri 2ACDE, Amit Porwal 1BCEF, Shankargouda Patil 8CDEF
DOI: 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 | – | – | |