Benny PESACH,Georgy MELAMED,Blanc Zach LEHR,Ygael GRAD
申请号：
US15542395
公开号：
US20180028292A1
申请日:
2016.04.21
申请国别(地区):
US
年份:
2018
代理人:
摘要：
Methods and devices are disclosed, by use of which an external fiducial element positioned in the mouth serves as a geometrical constraint on oral arch geometry. In some embodiments, the fiducial element is an oral insert which reaches to a plurality of oral arch regions to present surface details which are in well-defined distance and/or angular relationships to one another. These spatial relationships optionally comprise a spatial frame of reference which serves to constrain reconstruction of the geometry of one or both of the oral arches, for example reconstruction from a collection of digitally registered, partially-overlapping scans made along the oral arch.
