The device has an automatic mixer (11) i.e. MEDISTOCK automatic mixer(RTM: not defined), connected to an adaptor (10) i.e. MEDISTOCK adaptor(RTM: not defined). An intra-oral injection tip (12) i.e. cylindrical tube, is placed at an upper end of the mixer. The injection tip has a distal end, whose outside diameter is smaller than or equal to 1.5 mm over a length greater than or equal to 8 mm. The injection tip is made of a shape memory material e.g. metal, so that the tip is bent to a desired orientation. An independent claim is also included for a ready to use dental kit comprising a fluid filling material injecting device.
