-the crowns have white frame, which replace metal
-biocompatible with human tissues, don’t cause allergy (are widely used in endoprosthesis, for instance, femoral endoprosthesis)
-excellent aesthetics due to the absence of metal (transparency and light-refractability are the same as with natural teeth)
-the crowns are of high accuracy, as they are made with the help of a laser scanner and computer
-it’s possible to choose the colour of the frame which improves the appearance of the future crown
-zirconium oxide frame is thinner than the metal one (tooth tissues are less prepared)