Ti-Ga binary alloys developed as potential dental materials.

Area of Science:

• Biomaterials Science
• Materials Science
• Dental Materials

Background:

• Titanium (Ti) alloys are widely used in dentistry due to their biocompatibility.
• There is a need for dental materials with enhanced mechanical properties and corrosion resistance.
• Investigating novel Ti alloys, such as Ti-Ga, is crucial for advancing dental applications.

Purpose of the Study:

• To evaluate the microstructure, mechanical properties, castability, electrochemical behavior, and cytotoxicity of as-cast Ti-Ga alloys.
• To assess the potential of Ti-Ga alloys for dental applications.
• To identify the optimal Ti-Ga alloy composition for dental use.

Main Methods:

• Optical microscopy (OM) and X-ray diffraction (XRD) for microstructural analysis.
• Mechanical testing (tensile strength, Young's modulus, microhardness, wear resistance).
• Castability tests, electrochemical corrosion tests in artificial saliva, and in vitro cytotoxicity assays (L929 fibroblast, MG63 osteosarcoma cells).

Main Results:

• All as-cast Ti-Ga alloys exhibited a single α-Ti phase.
• Mechanical properties and wear resistance improved with increasing Ga content.
• Ti-2Ga alloy showed a 14.2% increase in castability compared to pure Ti.
• Ti-Ga alloys demonstrated superior corrosion resistance and excellent in vitro biocompatibility with good cell adhesion.

Conclusions:

• Ti-Ga alloys possess enhanced mechanical and corrosion properties compared to pure Ti.
• The Ti-2Ga alloy exhibits optimal comprehensive performance, including improved castability and biocompatibility.
• Ti-2Ga alloy is a promising candidate for dental applications.