Liquid metal alloy tooth-filling material and preparation method thereof and injection molding machine

Abstract

The invention relates to the technical field of medical materials and equipment, in particular to a liquid metal alloy tooth-filling material and a preparation method thereof and an injection moldingmachine. The liquid metal alloy tooth-filling material specifically comprises the following components of, by mass, 32-60 parts of Bi, 4-20 parts of Al, 28-48 parts of Zn, 7-48 parts of Sn and 1-12 parts of Nb. A bismuth-base eutectic alloy containing the components is used as the tooth-filling material, healthy and non-toxic effects are achieved, solidification and shaping time is short, and reducing of working time for dental restoration is facilitated; after filling, the size is not changed, the sealing effect of the tooth-filling material and a cavity is good, and the dental restoration effect is effectively improved; at the same time, the liquid metal alloy tooth-filling material has bright and white and attractive appearance and high corrosion resistance and is not easy to corrode ordissolve by saliva; and in addition, due to the fact that a bismuth element is arranged, and the tooth-filling material has the advantages of being more high in abrasion resistance and compressive strength and long in service life.

Description

technical field [0001] The invention relates to the technical field of medical materials and equipment, in particular to a liquid metal alloy dental filling material, a preparation method thereof and an injection molding machine. Background technique [0002] Teeth are the only vital organs in the human body that cannot be repaired independently. Among the hazards of teeth, the most common ones are dental caries, wedge-shaped defects, etc. The repair of teeth can only rely on the deployment of filling materials to fill the cavities of teeth. Make repairs. [0003] Currently the most commonly used filling materials are amalgam (silver amalgam) alloy and composite resin, but both of the above two filling materials have some defects. Amalgam (silver amalgam) has been widely used as a dental filling material for more than a century. Although the results are satisfactory, but because amalgam contains mercury, the human body inhales and absorbs the mercury vapor of amalgam, which...

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Problems solved by technology

[0005] The first purpose of the present invention is to provide a liquid metal alloy tooth filling material that is healthy, non-toxic, fast in curing and setting time, excellent in mechanical properties and can prolong its service life, so as to solve the problems of health hazards and poor mechanical properties of existing silver amalgams. And the problem of easy wear and tear of composite resin and poor durability

[0006] The second object of the present invention is to provide a method for preparing a liquid metal alloy dental filling material that is healthy, non-toxic, fast in setting time, excellent in mechanical properties and prolongs its service life, so as to solve the problems caused by the existing amalgam preparation methods. Problems that are extremely harmful to the operator and the environment

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