What kinds of all porcelain braces are available and how much do they cost?

Nowadays there are many kinds of all-porcelain braces. There are classified according to the material, there are also classified according to the domestic and foreign production and so on. Cheap is also now commonly used 3D all-porcelain teeth, before and after the teeth universal, color and aesthetics are good, just hardness relative to other expensive slightly lower. There are also glass ceramic production, also hardness is almost. Other zirconia and other materials produced by the relative aspects are better, just the price is basically more than 3000 ranging. According to their own economic ability to decide.