20 November 2023: Laboratory Research
Evaluation of the Effects of Digital Manufacturing, Preparation Taper, Cement Type, and Aging on the Color Stability of Anterior Provisional Crowns Using Colorimetry
Mohammed E. Sayed 1ABDEG* , Honey Lunkad 1ABCEF , Khurshid Mattoo 1ACDEF , Hossam F. Jokhadar 2ACEFG , Saad Saleh AlResayes 3ACEFG , Nasser M. Alqahtani 4ACEFG , Abdullah Hasan Alshehri 4ACEFG , Mohammad Alamri 5ACEFG , Sultan Altowairqi 6BCEF , Muhannad Muaddi 6BCEF , Halah Mohammed Huthan 6BCEF , Safeyah Abdulrahman Baeshen 6BCEF , Khalid Motlaq 7ACEFG , Amal M. Masmali 8ACEFGDOI: 10.12659/MSMBR.941919
Med Sci Monit Basic Res 2023; 29:e941919
Table 3 Descriptive analysis of the color change ΔE00(I) before cementation and after cementation reported with 95% confidence intervals, mean±SD, and median (minimum, maximum).
| Group | n | Mean | SD | Std error | 95% CI | Median | ||
|---|---|---|---|---|---|---|---|---|
| Lower bound | Upper bound | Minimum | Maximum | |||||
| 1MR | 10 | 0.65 | 0.21 | 1.00 | 1.93 | 0.52 | 2.30 | |
| 1MC | 10 | 0.43 | 0.14 | 0.36 | 0.98 | 0.06 | 1.25 | |
| 2MR | 10 | 0.59 | 0.19 | 0.88 | 1.72 | 0.53 | 2.43 | |
| 2MC | 10 | 0.34 | 0.11 | 0.41 | 0.89 | 0.15 | 1.24 | |
| 1PR | 10 | 0.66 | 0.21 | 0.48 | 1.43 | 0.30 | 1.98 | |
| 1PC | 10 | 0.57 | 0.29 | 0.09 | 0.36 | 0.78 | 0.37 | 1.33 |
| 2PR | 10 | 0.37 | 0.12 | 0.66 | 1.19 | 0.32 | 1.58 | |
| 2PC | 10 | 0.43 | 0.14 | 0.36 | 0.98 | 0.06 | 1.25 | |
| n – number; SD – standard deviation; CI – confidence interval; 1MR – 10° milled regular; 1MC – 10° milled clear; 2MR – 20° milled regular; 2MC – 20° milled clear; 1PR – 10° 3D-printed regular; 1PC – 10° 3D-printed clear; 2PR – 20° 3D printed regular; 2PC – 20° 3D-printed clear. Statistical interpretation: test employed=CIEDE2000. Level of significance * clinically perceptible when the mean color difference is ≥0.62; clinically unacceptable when the mean color difference is ≥2.62. | ||||||||