BEYOND 3D PRINTING: THE EMERGING ROLE OF 4D TECHNOLOGIES IN DENTAL APPLICATIONS
DOI:
https://doi.org/10.56238/revgeov17n3-141Keywords:
4D Printing, Smart Materials, Digital Dentistry, Adaptive Prostheses, Additive ManufacturingAbstract
Objective: To explore the emerging role of 4D printing in dentistry, focusing on smart materials, potential clinical applications, and current technological challenges.
Methods: A narrative review of the literature was performed, including studies on 4D printing technologies, smart biomaterials, and digital dentistry innovations. Experimental, preclinical, and conceptual reports were analysed to provide a comprehensive overview of the state of the art and future directions.
Results: 4D printing represents an evolution of additive manufacturing by incorporating time-dependent material transformation into printed structures. In dentistry, programmable materials capable of responding to environmental stimuli, such as temperature, humidity, and pH have demonstrated potential for creating adaptive and self-adjusting devices. Proposed applications include shape-morphing orthodontic appliances, self-fitting prostheses, and responsive biomaterials for tissue engineering. Preliminary findings suggest that these technologies may enhance prosthetic fit, reduce the need for manual adjustments, and improve patient comfort. However, the field remains largely experimental. Key limitations include restricted availability of biocompatible smart materials, challenges in controlling predictable transformations in the oral environment, high production costs, and the absence of standardized clinical protocols and regulatory pathways.
Conclusion: 4D printing has the potential to transform digital dentistry by enabling dynamic, patient-responsive devices. Despite promising early results, substantial technological refinement, material development, and
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References
Javaid, M., & Haleem, A. (2019). Current status and applications of additive manufacturing in dentistry: A literature-based review. Journal of Oral Biology and Craniofacial Research, 9(3), 179–185.
Miao, S., Zhu, W., Castro, N. J., Nowicki, M., Zhou, X., Cui, H., Fisher, J. P., & Zhang, L. G. (2021). 4D printing smart biomedical scaffolds with novel soybean oil epoxidized acrylate. Scientific Reports, 6, 27226.
Momeni, F., Hassani, N. S. M., Liu, X., & Ni, J. (2017). A review of 4D printing. Materials & Design, 122, 42–79.
Tahayeri, A., Morgan, M., Fugolin, A. P. P., Bompolaki, D., Athirasala, A., Pfeifer, C. S., Ferracane, J. L., & Bertassoni, L. E. (2018). 3D printed versus conventionally cured provisional crown and bridge dental materials. Dental Materials, 34(2), 192–200.
van Manen, T., Janbaz, S., & Zadpoor, A. A. (2018). Programming the shape-shifting of flat soft matter. Materials Today, 21(2), 144–163.
