Explanation

materials used to make the basic part of demure (demure base) that supports artificial teeth and contacts with oral soft tissue. demure base is one of the main components of removable demure. It covers the alveolar ridge of missing teeth and can connect all parts of demure into a whole, which is the basis for arranging artificial teeth. denture base materials mainly include macromolecule polymer and metal. macromolecule polymer denture base materials can be polyacrylate resin, polyethylene, copolymer or mixture of polystyrene and the above substances, as well as other polymer, but macromolecule denture base polymer in clinical use mostly uses polymethacrylate or its copolymer. It includes three types: heat curing type, chemical curing type, and light curing type. Among them, light cured denture base resin is a single component polymer, which is polymerization by light irradiation. At present, it is not widely used in clinical practice. The denture base made of macromolecule polymer is light in weight, lifelike in color and easy to adjust, but it has poor thermal conductivity and low strength. Metal base materials are divided into foundry and forging, and 18-8 stainless steel is mainly used for forging metal base materials; foundry metal base materials mainly include titanium and titanium alloy, cobalt chromium alloy, chromium nickel alloy, nickel chromium alloy and gold alloy. The advantages of a metal base are sturdy, easy to clean, and good temperature conductivity, but it is difficult to make a pad and is not easy to adjust.

Classification