金瓷冠的边缘适合性,反映了牙预备体边缘与修复体边缘的密合度。在制作修复体的过程中,每一环节都可能影响修复体的边缘适合性。笔者着重从制作工艺的角度谈一谈经验和体会。 1.合乎要求的模型:印模前,用牙龈退缩剂处理牙龈。要求模型清晰,用超硬石膏灌注模型。 2.修整代型:在模型上用铅笔画出牙体与牙龈分界线,磨除龈部,注意不要损伤牙体,使其圆缓,不要形成悬突的棱角。 The edge of gold porcelain crown fit, reflecting the margin of the edge of the dental prosthesis and prosthesis adhesion. In the process of making the prosthesis, every aspect may affect the marginal suitability of the prosthesis. I focus on the production process from the perspective of talk about experience and experience. 1. The right model: Before the impression, the treatment of gums with gingival retreat. Requires a clear model, perfusion model with anhydrite. 2. Trim generation: Use the pencil on the model to draw the line between the gums and gums, remove the gingival, pay attention not to damage the teeth, so that it is gentle, do not form overhang edges and corners.