The invention relates to a firing furnace or press furnace for dental restoration parts, comprising:a control device for the control of the furnace (10) on the basis of at least one firing/press programa display device (18), at least for displaying operating instructions based on symbolic representationsan input device (20), at least for selecting a firing/press programwherein the control device is configured to be able to switch the furnace (10) after selection of a control program to a security mode in which it displays one or several operating instructions and in which the input of firing or press parameters of the control program and/or the selection of a firing or press program is disabled.
