The invention relates to a positioning device (1) for cranial bone sections, for relative positioning of the cranial bone sections relative to each other and for obtaining a predefined overall shape and overall contour in order to achieve a target cranial shape, having a primary body (2) designed to bear the cranial bone sections, wherein the primary body (2) is produced based on individual patient data, which are specific for the patient to be treated, and supplemented by modified, anatomical data. The invention furthermore relates to a production method for producing such a positioning device (1). The invention also relates to a system consisting of the positioning device (1) according to the invention and a cranial bone fixing device (16).
