IMPRESSION DEVICE AND METHOD FOR THREE-DIMENSIONAL ACQUISITION OF INTRAORAL STRUCTURES, AND CORRESPONDING SCANNING DEVICE

摘要

The invention relates to an impression device and a method for three-dimensional acquisition of intraoral structures as well as a corresponding scanning device. The impression device of the invention comprises an impression sleeve, which has an open and a closed end, and at least one marker which is three-dimensional and disposed on the outside of the impression sleeve.

主权项

1. A method for three-dimensional acquisition of intraoral structures, said method comprising the following steps:
providing an impression device, said impression device comprising a marker and an impression element filled with an impression material, said impression device further comprising or being connectable to at least one referencing marker, placing the impression device on a tooth or a tooth stump in an oral cavity, such that an analogue impression of the tooth or the tooth stump is produced in the impression material; scanning the oral cavity including the marker disposed on the impression element with an intraoral scanner and producing a first data set which comprises a digitized, three-dimensional image of the oral cavity and the marker; removing the impression device from the oral cavity and extraorally scanning the analogue impression as well as the referencing marker and producing a second data set which comprises a digitized three-dimensional image of the analogue impression and the referencing marker.