Efficiency in the dental laboratory: Calibrating ceramic furnaces correctly

Are you unsure about the correct way to calibrate your dental furnace? Then you are in good company. These are questions often asked by dental technicians: (Why) Do ceramic furnaces need to be calibrated? Which options are there? Which is the best method? The most important answers can be found here.

Most importantly: Calibration is essential

Ceramic firing and press furnaces must be calibrated for various reasons:

• The temperature control in the dental furnace changes with time. This is due to chemical and physical influences, but also soiling and deposits. This is caused by the fired objects - e.g. ceramic, alloys, soldering materials. The thermocouple, the heating element and the insulation are particularly affected by these influences.
• The furnace’s technical components (heating wire, stone insulation inserts, heating muffle) are gradually affected by wear. This can also change the system.

Calibration ensures that the temperature control is correct again. If you do not calibrate, this can lead to faulty temperatures in the furnace. This will have a negative effect on your restorations. Therefore, the furnace must be calibrated at regular intervals.

In this checklist, we have put together the most important tips on calibration.