An Assessment of the Mechanical Deformation Behavior of Three Different Clear Aligner Materials: A Digital Image Correlation Analysis
Abstract
:1. Introduction
2. Materials and Methods
2.1. Sample Preparation
2.2. Deformation Behavior Testing
2.3. Statistical Analysis
3. Results
4. Discussion
5. Conclusions
- In conclusion, the Spark Trugen clear aligner system demonstrated a lower stability to rigid displacement and elastic deformation under compression testing compared to the Scheu CA® Pro+ Clear Aligner and Taglus Premium systems.
- All three tested clear aligner systems showed an increased resistance to elastic displacement and rigid deformation in the mandibular arch.
- The Scheu CA® Pro+ Clear Aligner system showed the lowest elastic deformation values after compression testing.
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Group | Aligner System | Manufacturer | Composition and Material Thickness |
---|---|---|---|
CA (n = 15) | CA® Pro+ Clear Aligner | Scheu Dental, Iserlohn, Germany | Three layers (0.75 mm): 1. Copolyester layer (0.25 mm) 2. Thermoplastic elastomer (TPE) (0.25 mm) 3. Copolyester layer (0.25 mm) |
TG (n = 15) | Taglus Premium | Taglus Company, Mumbai, India | Polyethylene terephtalate glycol (PET-G) (0.75 mm) |
SP (n = 15) | Spark Trugen | Ormco Corp., Orange, CA, USA | TruGEN Technology (0.75 mm) |
Camera Sensor | CMOS |
---|---|
Camera Resolution | 4096 × 3000 pixels |
Frame Rate | 25 fps @ full resolution |
43 fps @ 2496 × 2096 pixels (5M mode) | |
Illumination | Light Projector |
Tracking Spots | |
Measuring Area [mm] | Frame 150: 35|70|120|180 |
Frame 300: 110|170|260|400|550 | |
Frame 600: 750|1500 | |
Frame 1200: 1500|3000 | |
Frame 1600: 5000 | |
Control Device | ARAMIS Controller |
Sensor Size [mm] | Frame 150: approx. 260 × 330 × 300 |
Frame 300: approx. 420 × 330 × 300 | |
Frame 600: approx. 730 × 230 × 130 | |
Frame 1200: approx. 1300 × 230 × 130 | |
Frame 1600: approx. 1700 × 230 × 130 | |
Strain Measuring Range | 0.005% up to >2000% |
Strain Measuring Resolution | up to 0.005% |
Aligner | No. Point | 3 * | 2 * | 1 | 2 * | 3 * | |
---|---|---|---|---|---|---|---|
Scheu Upper | Axis | [mm] | [mm] | [mm] | [mm] | [mm] | |
X | 0.023 | 0.011 | 0.016 | 0.023 | |||
Y | 0.002 | 0.005 | 0.006 | 0.001 | |||
Z | 0.009 | 0.054 | 0.033 | 0.001 | |||
Scheu Lower | 3 | 2 | 1 | 1 | 2 | 3 | |
X | 0.007 | 0.007 | 0.002 | 0.003 | 0.006 | 0.013 | |
Y | 0.003 | 0.003 | 0.003 | 0.002 | 0.001 | 0.002 | |
Z | 0.017 | 0.017 | 0.01 | 0.017 | 0.014 | 0.003 |
Aligner | No. Point | 3 * | 2 * | 1 | 2 * | 3 * | |
---|---|---|---|---|---|---|---|
Spark Upper | Axis | [mm] | [mm] | [mm] | [mm] | [mm] | |
X | 0.007 | 0.008 | - | 0.033 | 0.034 | ||
Y | 0.007 | 0.003 | - | 0.01 | 0.02 | ||
Z | 0.005 | 0.05 | - | 0.024 | 0.027 | ||
Spark Lower | 3 | 2 | 1 | 1 | 2 | 3 | |
X | 0.01 | 0.002 | 0.0015 | 0.014 | 0.014 | 0.002 | |
Y | 0.001 | 0 | 0.006 | 0.008 | 0.006 | 0.007 | |
Z | 0.011 | 0.009 | 0.0015 | 0.021 | 0.027 | 0.03 |
Aligner | No. Point | 3 * | 2 * | 1 | 2 * | 3 * | |
---|---|---|---|---|---|---|---|
Taglus Upper | Axis | [mm] | [mm] | [mm] | [mm] | [mm] | |
X | 0.002 | 0.008 | 0.019 | 0.044 | |||
Y | 0.005 | 0.016 | 0.01 | 0.009 | |||
Z | 0.024 | 0.053 | 0.026 | 0.026 | |||
Taglus Lower | 3 | 2 | 1 | 1 | 2 | 3 | |
X | 0.002 | 0.008 | 0.002 | 0.004 | 0.009 | 0.002 | |
Y | 0.001 | 0.01 | 0.005 | 0.006 | 0.003 | 0.007 | |
Z | 0.01 | 0.048 | 0.017 | 0.02 | 0.018 | 0.03 |
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Olteanu, N.D.; Szuhanek, C.; Rosu, S.N.; Chitariu, D.F.; Seghedin, N.; Panaite, T.; Casalean, A.; Zetu, I.N. An Assessment of the Mechanical Deformation Behavior of Three Different Clear Aligner Materials: A Digital Image Correlation Analysis. Appl. Sci. 2024, 14, 7496. https://doi.org/10.3390/app14177496
Olteanu ND, Szuhanek C, Rosu SN, Chitariu DF, Seghedin N, Panaite T, Casalean A, Zetu IN. An Assessment of the Mechanical Deformation Behavior of Three Different Clear Aligner Materials: A Digital Image Correlation Analysis. Applied Sciences. 2024; 14(17):7496. https://doi.org/10.3390/app14177496
Chicago/Turabian StyleOlteanu, Nicolae Daniel, Camelia Szuhanek, Sorana Nicoleta Rosu, Dragos Florin Chitariu, Nicolae Seghedin, Tinela Panaite, Amalia Casalean, and Irina Nicoleta Zetu. 2024. "An Assessment of the Mechanical Deformation Behavior of Three Different Clear Aligner Materials: A Digital Image Correlation Analysis" Applied Sciences 14, no. 17: 7496. https://doi.org/10.3390/app14177496