Effect of Surface Polishing on Physical Properties of an Occlusal Splint Material for Additive Manufacturing under Protection Gas Post-Curing Condition
Abstract
:1. Introduction
2. Materials and Methods
2.1. Specimen Fabrication
2.2. Flexural Strength and Modulus Testing
2.3. Surface Microhardness (Vickers Hardness)
2.4. Degree of Carbon Double Bond Conversion (DC)
2.5. Water Sorption and Solubility
2.6. Optical Observation of Surface Condition
2.7. Statistical Analysis
3. Results
4. Discussion
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Predictor □ | Flexural Strength # | Flexural Modulus # | VHN # | DC $ | WSP $ | WSL $ |
---|---|---|---|---|---|---|
post-curing atmosphere | <0.001 * | <0.001 * | <0.001 * | <0.001 * | 0.038 * | 0.607 |
polishing | <0.001 * | <0.001 * | <0.001 * | <0.001 * | <0.001 * | <0.001 * |
aging | <0.001 * | <0.001 * | <0.001 * | – | – | – |
Post-Curing Atmosphere | Aging | Polishing | Flexural Modulus (GPa) | VHN | ||
---|---|---|---|---|---|---|
□ | □ | □ | □ | $ | □ | $ |
Without N2 | non-aged | Unpolished # | 2.21 (0.11) | a | 12.5 (0.4) | a |
□ | □ | Polished | 2.60 (0.11) | b | 16.9 (0.2) | b |
□ | aged | Unpolished # | 1.70 (0.14) | c | 12.1 (0.4) | c |
□ | □ | Polished | 2.13 (0.11) | a | 12.7 (0.5) | a |
□ | □ | □ | □ | □ | □ | □ |
With N2 | non-aged | Unpolished # | 2.13 (0.13) | a | 15.7 (0.5) | d |
□ | □ | Polished | 2.54 (0.12) | b | 17.0 (0.2) | b |
□ | aged | Unpolished # | 2.11 (0.07) | a | 15.3 (0.5) | d |
□ | □ | Polished | 2.12 (0.13) | a | 12.5 (0.4) | a |
Post-Curing Atmosphere | Polishing | DC (%) | WSP (%) | WSL (%) | |||
---|---|---|---|---|---|---|---|
$ | $ | $ | |||||
Without N2 | Unpolished # | 64.7 (6.4) | a | 1.685 (0.004) | a | 0.495 (0.020) | a |
– | Polished | 96.0 (3.0) | b | 1.657 (0.006) | b | 0.139 (0.022) | b |
– | □ | □ | □ | □ | □ | □ | □ |
With N2 | Unpolished # | 92.3 (4.5) | b | 1.696 (0.006) | a | 0.496 (0.036) | a |
– | Polished | 97.3 (3.7) | b | 1.664 (0.017) | b | 0.138 (0.022) | b |
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Wada, J.; Wada, K.; Gibreel, M.; Wakabayashi, N.; Iwamoto, T.; Vallittu, P.K.; Lassila, L. Effect of Surface Polishing on Physical Properties of an Occlusal Splint Material for Additive Manufacturing under Protection Gas Post-Curing Condition. Polymers 2023, 15, 625. https://doi.org/10.3390/polym15030625
Wada J, Wada K, Gibreel M, Wakabayashi N, Iwamoto T, Vallittu PK, Lassila L. Effect of Surface Polishing on Physical Properties of an Occlusal Splint Material for Additive Manufacturing under Protection Gas Post-Curing Condition. Polymers. 2023; 15(3):625. https://doi.org/10.3390/polym15030625
Chicago/Turabian StyleWada, Junichiro, Kanae Wada, Mona Gibreel, Noriyuki Wakabayashi, Tsutomu Iwamoto, Pekka K. Vallittu, and Lippo Lassila. 2023. "Effect of Surface Polishing on Physical Properties of an Occlusal Splint Material for Additive Manufacturing under Protection Gas Post-Curing Condition" Polymers 15, no. 3: 625. https://doi.org/10.3390/polym15030625