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 8ACEFG
DOI: 10.12659/MSMBR.941919
Med Sci Monit Basic Res 2023; 29:e941919
Table 4 Descriptive analysis of the color change ΔE00(II) after cementation and after thermocycling reported with 95% confidence interval, mean±SD, and median (minimum, maximum).
| Group | n | Mean | SD | Std error | 95% CI | Median | ||
|---|---|---|---|---|---|---|---|---|
| Lower bound | Upper bound | Minimum | Maximum | |||||
| 1MR | 10 | # | 0.68 | 0.21 | 3.19 | 4.15 | 2.57 | 4.60 |
| 1MC | 10 | 0.37 | 0.12 | 1.57 | 2.09 | 1.33 | 2.48 | |
| 2MR | 10 | # | 0.79 | 0.25 | 2.40 | 3.54 | 1.62 | 4.40 |
| 2MC | 10 | 0.60 | 0.19 | 1.19 | 2.05 | 0.68 | 2.54 | |
| 1PR | 10 | 0.70 | 0.22 | 1.95 | 2.95 | 1.16 | 3.40 | |
| 1PC | 10 | 0.50 | 0.16 | 0.95 | 1.66 | 0.40 | 1.98 | |
| 2PR | 10 | 0.62 | 0.20 | 1.67 | 2.56 | 1.21 | 3.42 | |
| 2PC | 10 | 0.32 | 0.10 | 1.28 | 1.74 | 0.93 | 1.87 | |
| 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. | ||||||||