The coating of dental substrates, such as the stumps of a working model or implants including ceramics, e.g. alumina, by means of electrophoresis results, especially because of the production of gas, in products unfit for use. It is therefore the aim of the invention to provide a coating method that allows for a high-quality coating of dental substrates in the shortest time possible, irrespective of the material constitution of the substrate. According to the inventive method, the substrate (stump 2) is fixated in an insulating mass (3) in a vertical holder (1). The substrate is coated with a separating agent and a hygroscopic layer and a further layer is applied thereon by shortly dipping the stump into the slip (6). The current used for electrophoresis is supplied via the layer (7) so formed. The inventive method, when used for non-conducting substrates, requires no silver enamel or the like. The method can also be used for conducting substrates, e.g. titanium implants, as the current flows only via the layer (7).