A method of forming a plurality of compression moulds for moulding prosthetic tooth elements is disclosed. A natural tooth surface or a model of the natural tooth surface is scanned to obtain scan data. Based on the scan data, a first compression mould is formed comprising a first mould surface, the first mould surface having a shape corresponding to a shape of a natural tooth surface increased in size by a first scale factor. Based on the scan data, a second compression mould is formed comprising a second mould surface, the second mould surface having a shape corresponding to the shape of the natural tooth surface increased in size by a second scale factor, the second scale factor being different from the first scale factor. Prosthetic tooth elements and dental prostheses formed using the method are also disclosed.
