Questions fréquentes

What are the particle sizes of the various Soprano® ceramics? +

Bubbles appeared in the Soprano® Surface ceramic on 2 of the 4 elements, specifically on the two elements that were characterised first. After the Soprano® Surface layer had been completely removed and the coating reapplied, no bubbles were present. What could be the possible causes of this? +

A bridge has been used provisionally in the mouth for several weeks and now needs to be corrected by firing. How can cracks be prevented? +

Is Soprano® Surface Liquid fluorescent? +

Soprano® Surface Paste develops shrinkage cracks, bubbles or an orange peel texture after firing. What can I do about this? +

Soprano® Surface Paste does not adhere sufficiently to monolithic crowns or bridges after firing. What can I do about this? +

Livento® invest: For thin restorations, especially veneers, the reaction layer is often much more difficult to remove than on thicker areas, where it can usually be sandblasted off without difficulty. Is there an explanation for this, and is there a solution? +

Livento® invest: The pressing fit is too tight. What can I do? +

Livento® invest is renowned for producing little to no reaction layer. Nevertheless, in rare instances a reaction layer may occur. What are the potential causes? +

What can I do to avoid chipping of the investment material during preheating or cracks and chipping during pressing? (Livento® invest) +

What do I need to think about when I put the investment ring in the oven ? (Livento® invest) +

What do I need to consider when investing ? (Livento® invest) +

How are refractory stumps prepared? (Livento® invest) +