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Multi-Scale Modification of Metallic Implants With Pore Gradients, Polyelectrolytes and Their Indirect Monitoring In vivo
Published on: July 1, 2013
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Micro- and nano-structured 3D printed titanium implants with a hydroxyapatite coating for improved osseointegration.
Jie Qin1, Dongqing Yang, Shaheer Maher
1School of Chemical Engineering, The University of Adelaide, 5005, Australia. dusan.losic@adelaide.edu.au.
Journal of Materials Chemistry. B
|April 8, 2020
Summary
3D printing creates advanced titanium dental implants with enhanced osseointegration. Surface modifications using titania nanotubes and hydroxyapatite coating improve cell interaction and bone growth, offering better alternatives to traditional implants.
Area of Science:
- Biomaterials Engineering
- Dental Implantology
- Additive Manufacturing
Background:
- Growing demand for cost-effective, high-performance dental implants.
- Limitations of conventional implants in osseointegration.
- Potential of 3D printing for patient-specific implant fabrication.
Purpose of the Study:
- To develop and evaluate novel 3D-printed titanium dental implants.
- To enhance osseointegration through surface nano-structuring and bioactivation.
- To demonstrate a cost-effective manufacturing approach for advanced dental implants.
Main Methods:
- Fabrication of Ti6Al4V implants using selective laser melting (3D printing).
- Surface nano-structuring via electrochemical anodization to create titania nanotubes (TNT).
- Bioactivation through hydroxyapatite (HA) coating and in vitro evaluation with osteoblasts.
Main Results:
- Significantly increased protein adsorption, cell adhesion, and spreading on modified surfaces.
- Enhanced expression of osteoblast/osteocyte genes (GJA1, PHEX), indicating improved cell maturation.
- Demonstrated promotion of mineralization, crucial for osseointegration.
Conclusions:
- 3D printing combined with nano-structuring and HA coating is a viable method for producing superior titanium dental implants.
- The developed implants show promising osseointegration properties.
- This approach offers a potential alternative to conventional dental implants with improved clinical outcomes.
