A device for controlling and dispensing wax for the creation of tracings and moulds comprising a spatula-like tip (3), which is mounted on a hollow handle (4), and a control unit (1). The hollow handle (4) has internally a housing (10) containing a block of solid wax; the housing (10) communicates with a channel (12) for conveying the wax into the vicinity of the spatula-like tip; and heating elements (9) are provided around the housing (10) for the wax. Preferably, the heating temperature may be regulated by the control unit (1) via a spirally wound electrical resistance. According to an advantageous embodiment, the spatula (3) is interchangeable depending on requirements.