An artificial hip, a type of artificial joint, modeled after the structure of the human hip joint. A metal bar inserted from the upper end of the thigh bone, with a metal ball on top of the bar that replaces the top of the femur. A plastic mortar is attached to the hip socket and a metal ball is embedded in the mortar. Thousands of patients are now fitted with these joints.
At present, the most commonly used metal material for the hip joint is titanium alloy. The hot isostatic pressure processing method is adopted for the blank of titanium alloy. Cobalt-chromium-molybdenum alloy adopts the processing method of casting and stainless steel adopts the forging, which is formed after machining and surface treatment.
Titanium alloy porcelain teeth
It mainly refers to the porcelain dental materials between the precious metal tooth and nickel-chromium alloy tooth. In a strict sense, this kind of porcelain tooth guarantees human body affinity is good, and it suits the requirement of human body health quite. Its service life will be greatly beyond people’s imagination. Theoretically, as long as you pay attention to the correct use of teeth, its service life is the lifetime.
The advantage of titanium alloy porcelain teeth is that titanium alloy and ceramics have a good bonding strength, with the characteristics of not easy cracking porcelain and durability. Titanium alloys have good biocompatibility and usually do not cause discoloration of surrounding tissues. However, the inner crown of titanium alloy porcelain crowns is gray metal color, and the restoration of titanium alloy porcelain crowns will show a greenish color which is not easy to detect under the special light, and its beauty effect is relatively poor.
Titanium alloy stent
At present, titanium alloy manufacturing stent is widely used for its high strength, smooth surface, wear resistance, corrosion resistance, and permanent repair. The common titanium alloy stent contains 46% titanium and has good biocompatibility, which is equal to 75% gold alloy. A stent made of titanium alloy was used to repair the chewing function of patients in a short period of time, and the discomfort was eliminated quickly and the fixation was good. Besides, the missing teeth were repaired with titanium alloy stents with good strength and elasticity.
Pure titanium has good adaptability to human tissues so that the oral mucosa under its base will not produce the similar rejection reaction, such as the change of microvascular flow rate and the increase of interstitial fluid exudation. In this way, the conditions for the occurrence of denture stomatitis after the patient wears a titanium base denture are greatly reduced and the satisfaction of the patient is improved.
Titanium alloy stent can be used to restore the shape and function of the tooth body, with high strength, smooth surface, wear resistance and corrosion resistance. It is a permanent prosthesis for all fixers. In particular, it has good biocompatibility and is suitable for people who are sensitive to nickel ions, and it has been widely used in the repair of anterior teeth.
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