金属烤瓷修复体焊接问题及临床应用经验小结

Metal Fused Porcelain Restoration-Its Solidaring Problems and Clinical Experience

一、金属烤瓷修复的特点和概况金属烤瓷修复体是用金属做底材,制成冠或金属板。然后在它的表面涂上与牙的颜色相似的陶瓷,并雕出牙体解剖形态,放入真空烤瓷炉中,经高温烧制使瓷熔结在金属上形成金属烤瓷修复体。

(Ⅰ) The indications and the contraindications of the metal-fused porcelain restoration.(Ⅱ) The Making process of the metal-fused porcelain restoration(Ⅲ) The soldering problems of the metal-fused porcelain restorations.Two types of solder are described:a. High-fusion point solder——the crown and bridge are soldered first then the porcelain is fused.b. Medium-fusion point solder——the porcelain is fused on the metal crown first, and then the soldering is done at a temperature lower than the fusion temperature.(Ⅳ) Discussions on the clinical applications of the metal-fused porcelain restoration.a. The re-enforcement of the porcelain-metal bond in the prevention of porcelain crackle.b. The problems of soldering fused porcelain bridge.c. The unsolved problems of the metal-fused porcelain restoration.