Replica casting of the skull base.

A new technique is described of obtaining a replica cast of the human skull base by making an epoxy resin case from a silicone rubber mould of the skull base. The replica provides an accurate and permanent record of the shape and dimensions of the base of the cranial cavity, together with the location and extent of any fractures of the skull. The method gives a good correlation between these characteristics and the type and extent of brain damage.