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Published on: December 20, 2024
Ti-Ge binary alloy system developed as potential dental materials.
Wen-Jiao Lin1, Ben-Li Wang, Ke-Jin Qiu
1Center for Biomedical Materials and Engineering, Harbin Engineering University, Harbin 150001, China.
Summary
Titanium-germanium (Ti-Ge) alloys show promise as dental materials. Ti-2Ge and Ti-5Ge alloys exhibit excellent mechanical properties, corrosion resistance in artificial saliva, and biocompatibility, making them suitable for dental applications.
Area of Science:
- Materials Science
- Biomaterials Engineering
- Dental Materials Science
Background:
- Titanium (Ti) alloys are widely used in dentistry due to their biocompatibility.
- There is a continuous need for advanced dental materials with improved properties.
- Germanium (Ge) addition to Ti alloys is explored for enhanced performance.
Purpose of the Study:
- To investigate the feasibility of Ti-xGe alloys as potential dental materials.
- To evaluate the microstructure, mechanical properties, corrosion behavior, and cytotoxicity of Ti-xGe alloys.
- To compare Ti-xGe alloys with pure Ti as a control.
Main Methods:
- Production of as-cast Ti-xGe (x = 2, 5, 10, 20 wt %) binary alloys.
- Microstructural analysis.
- Mechanical property testing.
- In vitro electrochemical and immersion corrosion tests in artificial saliva.
- Cytotoxicity tests using L-929 fibroblasts and MG-63 osteosarcoma cells.
Main Results:
- Microstructure evolved from single α-Ti to α-Ti + Ti(5)Ge(3) with increasing Ge content.
- Ti-5Ge alloy demonstrated the best comprehensive mechanical properties.
- Ti-2Ge and Ti-5Ge alloys exhibited superior corrosion resistance in fluoride-containing artificial saliva.
- Ti-xGe alloy extracts showed no significant reduction in cell viability, similar to pure Ti.
Conclusions:
- Ti-2Ge and Ti-5Ge alloys possess optimal comprehensive performance for dental applications.
- The Ti-xGe alloy system shows potential as a biocompatible and corrosion-resistant alternative to pure Ti in dentistry.
