Dental furnace and procedures for the operation of a dental furnace

A method for the operation of a dental furnace,

• wherein the dental furnace is for pre-drying dental restoration parts or for debinding dental restoration parts and comprises a heating chamber and at least one electric heating element, which is controlled by a power controller, a temperature detector, a process controller connected to the temperature detector, the power controller connected to the process controller, the process controller having a current controller, wherein the temperature detector comprises a thermocouple or an optical temperature measuring system, and wherein the current controller is configured to control the power controller in absence of a measurement signal of the temperature detector, said method comprising the following steps:
• pre-drying or debinding the dental restoration part,
• directly detecting temperature of the dental restoration part in the heating chamber by the temperature detector,
• regulating the power controller by the process controller,
• controlling the power controller by the current controller in the absence of a measurement signal of the temperature detector.

A method for the operation of a dental furnace,

• wherein the dental furnace comprises a heating chamber and at least one electric heating element that is controlled by a power controller, a temperature detector, a process controller connected to the temperature detector, the power controller connected to the process controller, and the process controller having a current controller, said method comprising the following steps:
• the temperature detector directly detects temperature of a dental restoration part in the heating chamber,
• the process controller regulates the power controller, and
• the current controller controls the power controller in an absence of a measurement signal of the temperature detector,
• wherein a waiting time tcool is started by the process controller by a time or as soon as a heat treatment is stopped by supply of electrical energy and the heating chamber is opened and the waiting time tcool is terminated at a time when the temperature of the heating chamber has fallen below a predetermined value.