Over time, certain working steps have been established that we carry out automatically without even realizing it. We develop routines so we don't need to think about every single step. As long as the correct results are achieved, we see no reason to change our veneering process.
However, we can only recognize the transparency and the intensity of the shade. Most of us also know that a restoration was properly fired if it has a light brilliance and visible edges. If the ceramic has been over-fired, then the edges are clearly rounded. These differences are often only attributed to the final firing temperature.
For example, the correct degree of firing of a veneering ceramic also depends on the temperature of the heating rate. When heated slower, the air in the ceramic can escape more easily. If the ceramic is heated too quickly, it is more difficult for the air and the modelling liquid between the single powder grains to escape. The ceramic can become cloudy. Additionally, further firing factors affect the veneering ceramics and its properties and therefore, the durability of a restoration.