Metallic substrate of the full metal crown porcelain teeth can easily oxidize the formation of gray oxides, causing gums on the gums, affecting the appearance, while having a strong irritating gums, some patients install metal porcelain teeth, gums, allergies, etc. Phenomenon, it is difficult to achieve aesthetics and comfortable demand.
Full metal crown allocariac teeth have a metal substrate, so it is necessary to cover the color with a shading tile, so that the whole porcelain crown produces a certain degree of obstruction of the light. Despite this, it is still unable to cover the tooth gray, so it is very affected Beautiful view of teeth.