Surface Characteristics of High Translucent Multilayered Dental Zirconia Related to Aging
Abstract
:1. Introduction
2. Materials and Methods
2.1. Specimen Preparation
2.2. Hydrothermal Aging
2.3. Surface Roughness and Topography
2.4. Atomic Force Microscopy (AFM)
2.5. Scanning Electron Microscopy (SEM)
2.6. Microhardness Testing
2.7. Statistical Analysis
3. Results
3.1. Micro-Surface Roughness
3.2. Atomic Force Microscopy (AFM)
3.3. Scanning Electron Microscopy (SEM)
3.4. Microhardness Testing
4. Discussion
5. Conclusions
- For tested zirconia materials, no significant differences among layers were registered regarding surface characteristics.
- Surface treatment (glazing or polishing) has a significant impact on surface roughness and microhardness; the glazed samples were found with higher surface roughness and lower microhardness compared to the polished ones. This correlation is preserved even after LTD.
- After aging microroughness increases, but significant only for the super translucent material. There is a significant increase in nanoroughness values, for all materials, both on the glazed and polished surfaces. Related to microhardness, aging does not have a significant influence.
- The super translucent 4Y-TZP (fourth-generation) material was more affected by aging compared to the super-high translucent 5Y-TZP (third-generation) material. The material with 4 mol% + 5 mol% revealed similarities for each layer corresponding to the microstructure.
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Restauration Material | Manufacturer | Translucency/ Shade | Yttrium Content | Flexural Strength |
---|---|---|---|---|
STML (ST) | Katana, Kuraray Noritake Dental, Japan | Super translucency A2 | 4 mol% | 750 MPa |
IPS e.max Zir CAD (IP) | Ivoclar Vivadent AG, Schaan, Liechtenstein | Super-high translucency + Super translucency A2 | 4 mol%-incisal 4 + 5 mol%-transition 4 mol%-cervical | 850 MPa |
Ceramill Zolid fx ML (CE) | Amman Girrbach, AG, Koblach, Austria | Super-high translucency A2/A3 | 5 mol% | 700 MPa |
ST cg | ST cp | IP cg | IP cp | CE cg | CE cp | ||
---|---|---|---|---|---|---|---|
Ra | c | 0.064 ± 0.009 | 0.041 ± 0.009 | 0.073 ± 0.009 | 0.043 ± 0.010 | 0.086 ± 0.010 | 0.047 ± 0.009 |
m | 0.065 ± 0.009 | 0.043 ± 0.010 | 0.080 ± 0.009 | 0.044 ± 0.009 | 0.085 ± 0.010 | 0.045 ± 0.010 | |
i | 0.067 ± 0.010 | 0.042 ± 0.010 | 0.083 ± 0.009 | 0.046 ± 0.009 | 0.084 ± 0.008 | 0.047 ± 0.010 | |
Rz | c | 0.445 ± 0.099 | 0.360 ± 0.094 | 0.475 ± 0.098 | 0.366 ± 0.098 | 0.580 ± 0.096 | 0.386 ± 0.082 |
m | 0.466 ± 0.096 | 0.363 ± 0.091 | 0.530 ± 0.091 | 0.371 ± 0.096 | 0.573 ± 0.098 | 0.371 ± 0.091 | |
i | 0.493 ± 0.093 | 0.378 ± 0.100 | 0.533 ± 0.100 | 0.385 ± 0.092 | 0.563 ± 0.090 | 0.373 ± 0.093 |
ST ag | ST ap | IP ag | IP ap | CE ag | CE ap | ||
---|---|---|---|---|---|---|---|
Ra | c | 0.080 ± 0.009 | 0.054 ± 0.010 | 0.081 ± 0.009 | 0.052 ± 0.009 | 0.088 ± 0.009 | 0.048 ± 0.008 |
m | 0.078 ± 0.009 | 0.055 ± 0.010 | 0.084 ± 0.008 | 0.050 ± 0.009 | 0.087 ± 0.009 | 0.047 ± 0.009 | |
i | 0.077 ± 0.009 | 0.052 ± 0.010 | 0.086 ± 0.010 | 0.049 ± 0.008 | 0.086 ± 0.009 | 0.048 ± 0.009 | |
Rz | c | 0.535 ± 0.100 | 0.426 ± 0.101 | 0.543 ± 0.094 | 0.372 ± 0.090 | 0.576 ± 0.099 | 0.413 ± 0.095 |
m | 0.520 ± 0.095 | 0.422 ± 0.099 | 0.548 ± 0.097 | 0.383 ± 0.091 | 0.579 ± 0.095 | 0.406 ± 0.091 | |
i | 0.518 ± 0.092 | 0.410 ± 0.091 | 0.562 ± 0.089 | 0.390 ± 0.094 | 0.591 ± 0.084 | 0.416 ± 0.090 |
ST cg-cp | IP cg-cp | CE cg-cp | ST ag-ap | IP ag-ap | CE ag-ap | ||
---|---|---|---|---|---|---|---|
Ra | c | 0.001 | <0.001 | <0.001 | 0.002 | <0.001 | <0.001 |
m | 0.004 | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | |
i | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | |
Rz | c | 0.039 | 0.026 | 0.004 | 0.042 | 0.005 | 0.006 |
m | 0.044 | 0.009 | 0.006 | 0.039 | 0.005 | 0.003 | |
i | 0.031 | 0.005 | 0.002 | 0.046 | 0.003 | 0.001 |
ST cg-ag | ST cp-ap | IP cg-ag | IP cp-ap | CE cg-ag | CE cp-ap | ||
---|---|---|---|---|---|---|---|
Ra | c | 0.006 | 0.049 | 0.134 | 0.058 | 0.715 | 0.868 |
m | 0.046 | 0.022 | 0.521 | 0.387 | 0.662 | 0.628 | |
i | 0.042 | 0.047 | 0.583 | 0.442 | 0.311 | 0.808 | |
Rz | c | 0.371 | 0.225 | 0.775 | 0.621 | 0.583 | 0.866 |
m | 0.412 | 0.425 | 0.621 | 0.539 | 0.715 | 0.754 | |
i | 0.344 | 0.568 | 0.592 | 0.546 | 0.662 | 0.862 |
ST cg | IP cg | CE cg | ST cp | IP cp | CE cp | ||
---|---|---|---|---|---|---|---|
Sa | c | 1.651 | 1.960 | 1.723 | 1.048 | 1.244 | 1.388 |
m | 2.424 | 2.536 | 2.662 | 1.315 | 1.381 | 1.582 | |
i | 1.524 | 1.598 | 1.924 | 1.529 | 1.529 | 1.343 | |
Sq | c | 1.934 | 2.293 | 1.981 | 1.348 | 1.335 | 1.738 |
m | 2.945 | 3.049 | 3.123 | 1.691 | 1.552 | 2.113 | |
i | 1.842 | 1.996 | 2.144 | 1.945 | 2.045 | 1.545 |
ST ag | IP ag | CE ag | ST ap | IP ap | CE ap | ||
---|---|---|---|---|---|---|---|
Sa | c | 23.334 | 28.134 | 31.817 | 20.651 | 27.714 | 20.342 |
m | 21.419 | 29.050 | 27.315 | 31.783 | 27.674 | 22.991 | |
i | 22.458 | 24.262 | 24.464 | 28.978 | 25.502 | 20.515 | |
Sq | c | 26.744 | 32.526 | 36.371 | 23.669 | 31.778 | 23.529 |
m | 24.414 | 33.221 | 31.242 | 36.254 | 31.952 | 25.883 | |
i | 25.702 | 27.911 | 27.873 | 32.988 | 29.106 | 23.728 |
ST Glazed | ST Polished | IP Glazed | IP Polished | CE Glazed | CE Polished | ||
---|---|---|---|---|---|---|---|
control groups | c | 770.33 ±9.60 | 1763 ± 17.02 | 700 ± 5.72 | 1732 ± 15.70 | 632.67± 8.50 | 1637 ± 12.50 |
m | 763.67 ± 8.62 | 1763 ± 17.02 | 597 ± 3.80 | 1638.67 ± 14.02 | 617 ± 7.90 | 1552 ± 8.41 | |
i | 694.67 ± 9.14 | 1732 ± 15.89 | 626 ± 4.20 | 1700.67 ± 15.03 | 610 ± 7.28 | 1597 ± 9.54 | |
aged groups | c | 672.67 ± 8.32 | 1711 ± 15.41 | 621 ± 4.10 | 1729.67 ± 15.05 | 708.33 ± 9.42 | 1532.33 ± 9.50 |
m | 601 ± 5.12 | 1809.67 ± 17.91 | 603.33 ± 4.08 | 1764.33 ± 16.15 | 722± 8.11 | 1607.67 ± 8.97 | |
i | 640.33 ± 5.81 | 1797 ± 17.56 | 694.33 ± 4.21 | 1762.67 ± 16.08 | 722± 8.11 | 1667.67± 5.70 |
VN | ST cg-ag | STcp-ap | IP cg-ag | IP cp-ap | CE cg-ag | CE cp-ap |
---|---|---|---|---|---|---|
c | 0.621 | 0.033 | 0.887 | 0.972 | 0.012 | 0.091 |
m | 0.116 | 0.248 | 0.584 | 0.623 | 0.016 | 0.183 |
i | 0.413 | 0.475 | 0.671 | 0.523 | 0.001 | 0.359 |
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Toma, F.R.; Bîrdeanu, M.I.; Uțu, I.-D.; Vasiliu, R.D.; Moleriu, L.C.; Porojan, L. Surface Characteristics of High Translucent Multilayered Dental Zirconia Related to Aging. Materials 2022, 15, 3606. https://doi.org/10.3390/ma15103606
Toma FR, Bîrdeanu MI, Uțu I-D, Vasiliu RD, Moleriu LC, Porojan L. Surface Characteristics of High Translucent Multilayered Dental Zirconia Related to Aging. Materials. 2022; 15(10):3606. https://doi.org/10.3390/ma15103606
Chicago/Turabian StyleToma, Flavia Roxana, Mihaela Ionela Bîrdeanu, Ion-Dragoș Uțu, Roxana Diana Vasiliu, Lavinia Cristina Moleriu, and Liliana Porojan. 2022. "Surface Characteristics of High Translucent Multilayered Dental Zirconia Related to Aging" Materials 15, no. 10: 3606. https://doi.org/10.3390/ma15103606