What is the difference between all-ceramic and porcelain braces?

Porcelain teeth, all-ceramic teeth belong to the full crown class restorations, the difference between the two is mainly different materials.
1:Porcelain teeth: the inner layer of metal base, the outer layer of high temperature baking knot on the four layers of porcelain powder. Because there are ordinary metal base crowns lead to porcelain teeth color, transparency and natural teeth deviation, in the aesthetic requirements of high anterior teeth restoration is not as good as all-porcelain teeth; the combination of metal and porcelain is a relatively weak link in the porcelain tooth restoration, when bearing a large bite force this link can often see porcelain and metal peeling, exposing the gray and black metal situation.
2. All-ceramic teeth: the metal base is replaced with a layer of all-ceramic transparent support skeleton, and then baked on the surface of its outer crown with a layer of natural teeth similar to the color of the porcelain powder, does not contain metal material. Because it can simulate the natural tooth translucency, more able to achieve the effect of the restoration of the fake real; all-porcelain teeth due to the inner and outer crowns are porcelain, and the combination of porcelain and porcelain will not be because of the bite force and cause the porcelain layer off the case.
At the same time containing metal porcelain crowns, when doing head MRI, will have a certain impact on the results or even forced to remove, does not contain metal all-porcelain teeth will not appear this concern.
Specifically need to do what material braces but also according to the professional doctor to assess the patient’s specific situation and specific requirements.