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August 28, 2023
Application of Titanium Alloy Materials in Facial Therapy, Medical Devices and Dentistry
Titanium alloy materials can produce titanium wire, titanium plate, titanium rod and other parts through powder metallurgy process and casting process. Due to its own excellent properties (such as high specific strength, low elastic modulus, low thermal expansion coefficient, good high temperature resistance, strong corrosion resistance, excellent biocompatibility, non-magnetic, wear resistance, long service life), it can It is widely used in various fields such as aerospace, electronic engineering, medical treatment, petrochemical industry and automobile manufacturing. Especially in the medical field has played an increasingly important role.
1. Application in facial treatment
When the human face is severely damaged, local tissue repair will be treated with surgical implantation. Titanium alloy has good human affinity and required high strength, so it becomes an ideal material for human facial tissue repair. Titanium mesh made of titanium wire has been widely used as a skull bracket in jawbone reconstruction surgery, and has achieved good clinical results.
2. Application in medical devices
In the history of surgical instrument development, the first generation was mostly made of carbon steel, but it was eliminated because the performance after electroplating could not meet the clinical use requirements. The second generation is made of stainless steel, but the chromium in its composition is toxic, and the peeled chrome layer is harmful to the human body, so long-term use is not recommended. Titanium's light weight and high strength make it especially used as a microsurgical instrument. Titanium also has corrosion resistance, good elasticity, no deformation, no magnetism, and can eliminate the destructive characteristics of tiny and sensitive implanted electronic devices. At present, the application range of titanium surgical instruments is becoming wider and wider, such as surgical blades, hemostatic forceps, electric bone drills, vascular suture needles, sternal sutures, titanium electrodes in electrocardiographs and titanium instruments for ophthalmic surgery.
3. Applications in the field of dentistry
The elastic modulus of titanium is the closest to that of human tissue, which can alleviate the mechanical incompatibility between metal implants and bone tissue. Moreover, the thermal conductivity of titanium is the lowest among all metal materials for dental restoration, which can reduce the thermal stimulation to the pulp of teeth with crowns. Titanium inlays or full crowns can protect the pulp and avoid hot and cold stimulation. Dental titanium is mostly pure titanium, but its strength is insufficient, its wear resistance is poor, and it is prone to casting defects and unstable quality, so it is now mostly made of titanium alloy materials.
The most commonly used titanium alloy is Ti-6Al-4V alloy, but because metal V is harmful to the human body, Nb is used instead of V to obtain Ti-6Al-7Nb alloy, which has excellent corrosion resistance, good plasticity and wear resistance Excellent and harmless to the human body, in order to obtain the approval of ASTM standard. At present, titanium materials can be made into crowns, porcelain teeth, denture clasps, bases, connecting devices, and almost all metal parts of dentures.
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