3D-Printed vs. Heat-Polymerizing and Autopolymerizing Denture Base Acrylic Resins
Abstract
:1. Introduction
2. Materials and Methods
3. Results
4. Discussion
5. Conclusions
- The post-curing method has an impact on the flexural strength of the investigated 3D-printed denture base material. Increased the post-curing temperature may enhance the flexural properties of resin monomers used for the 3D-printing of dental appliances.
- Higher water solubility and inferior mechanical properties were found on the 3D-printed material when compared to the heat-cured one. The high temperature and extended processing time used for the heat-cured polymers might be attributed to their reduced water sorption and solubility.
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Brand Name | Manufacturer | Type | Chemical Composition According to Manufacturer | Processing Method |
---|---|---|---|---|
IMPRIMO® LC Denture | Scheu-Dental GmbH | Methacrylate-based | 95% Esterification products of 4,4′-isopropylidenediphenol, ethoxylated and 2-methylprop-2-enoic acid <2% Diphenyl-(2,4,6-trimethylmenzoyl) phosphinoxide (photo initiator) | 3D printing: photopolymerization |
Palapress® | Kulzer GmbH | PMMA-based | Liquid: methylmethacrylate (>90%); tetramethylene dimethacrylate (0–5%); 2-(2H-Benzotriazol-2-yl)-4-methylphenol (<1%), N,N-dimethyl-p-toluidine (<1%) Powder: polymethylmethacrylate (>95%); Bis(p-Chlorbenzoyl) peroxide (0–5%) | Conventional: autopolymerization |
Paladon® 65 | Kulzer GmbH | PMMA-based | Liquid: methylmethacrylate (>90%), BDMA (0–5%) Powder: Methacrylate copolymonomers (0–5%), BPO < 1% | Conventional: heat-polymerization |
Brand | Technology | Duration | Working Pressure | Working Temperature | Wavelength | Manufacturer |
---|---|---|---|---|---|---|
Imprimo® Cure | UV LED, nitrogen gas atmosphere | 10 min | 180 kPa | _ | 365 and 405 nm | Scheu-Dental GmbH |
Form Cure® | LED | 30 min | _ | 60 °C | 405 nm | Formlabs |
Group | Subgroup | Water Sorption % (Mean ± SD) | Water Solubility % (Mean ± SD) |
---|---|---|---|
3D-printed | Imprimo Cure® | 2.2 ± 0.01 a | 0.67 ± 0.024 a |
Form cure® | 2.2 ± 0.008 a | 0.55 ± 0.027 b | |
Palapress® | - | 2.1 ± 0.02 b | 0.72 ± 0.096 a |
Paladon® | - | 2.1 ± 0.06 ab | 0.32 ± 0.024 c |
p-value (Welch’s ANOVA) | <0.001 | <0.001 |
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Perea-Lowery, L.; Gibreel, M.; Vallittu, P.K.; Lassila, L.V. 3D-Printed vs. Heat-Polymerizing and Autopolymerizing Denture Base Acrylic Resins. Materials 2021, 14, 5781. https://doi.org/10.3390/ma14195781
Perea-Lowery L, Gibreel M, Vallittu PK, Lassila LV. 3D-Printed vs. Heat-Polymerizing and Autopolymerizing Denture Base Acrylic Resins. Materials. 2021; 14(19):5781. https://doi.org/10.3390/ma14195781
Chicago/Turabian StylePerea-Lowery, Leila, Mona Gibreel, Pekka K. Vallittu, and Lippo V. Lassila. 2021. "3D-Printed vs. Heat-Polymerizing and Autopolymerizing Denture Base Acrylic Resins" Materials 14, no. 19: 5781. https://doi.org/10.3390/ma14195781