Heating cartridge for a dental spraying handpiece

The heating cartridge comprises an insulating pipe permitting flow-through of a medium, and a heating element arranged therein whose ends are extended for the purpose of contact with the ends of the insulating pipe. In order to achieve, among other things, easy exchange of the heating cartridge, the insulating pipe (2) comprises connection elements (3) on both ends each having one section (3b) for the direct connection of a media supply and media discharge hose pipe (4) and, advantageously, a further section (3b) for connection of an electrical current supply line.