1 Efficiency, another appearance, this usually puts a single crown without abrasion of the neighbor.
2, the installation of mouth guard is good, inside the vacuum state, the crown edge is close, the original teeth is not rotted, the service life can reach 10 years, I have seen some patients, the root canal did not come back, the result is not one Little annual cracking, it is fine, and it can be replaced, and the total magnetic resonance of all porcenees has no problem, but the metal material interferes with imaging.