Abstract: A device for producing granules has a water-cooled granulating mechanism for producing plastics material granules. A discharge line arranged downstream of the granulating mechanism discharges a starting mixture flow and a granule heat exchanger arranged downstream of the discharge line controls the temperature of the mixture containing the plastics material granules and cooling water using parallel fluid passages. The granule heat exchanger has an inlet and an outlet for a transmission heat exchanger medium. A drying mechanism arranged downstream of the granule heat exchanger dries the plastics material granules. The device also may have an energy recovery mechanism arranged downstream of the discharge line for recovering energy from a recovery cooling water flow, containing at least a part of the cooling water of the starting mixture flow. The device uses waste heat, transmitted to the cooling water to increase the performance of the device and improve the energy efficiency thereof.

Abstract: A dental treatment unit including at least one mechanical connection for a three-dimensional measuring device for the measurement of teeth, treatment situations and tooth models. The three-dimensional measuring device and the dental treatment unit may be connected to each other by way of means for the exchange of data and/or control commands. In another embodiment, the three-dimensional measuring device may be configured for the three-dimensional measurement of teeth, treatment situations and tooth models, and include a hand-held piece with an image acquisition unit and a base unit that is connected to hand-held piece. The base unit may include means for the exchange of data and/or control commands with a dental treatment unit and/or means for the supply of power through the dental treatment unit.