Superimposition of 3D digital models: A case report
Original Article
Summary
Introduction
Superimposition
of digital models may be performed to assess tooth movement in three
dimensions. Detailed analysis of changes in tooth position after
treatment may be achieved by this method.
Aim
This
article describes the method of superimposing digital models with a
clinical case. It emphasizes the difficult procedure of superimposing 3D
models in the lower arch. A methodology for superimposing mandibular
models acquired with a structured light 3D scanner is discussed.
Conclusion
Superimposition
of digital models is useful to analyse tooth movement in the three
planes of space, presenting advantages over the method of cephalogram
superimposition. It seems feasible to superimpose digital models in the
lower arch in patients without growth by using a coordinate system based
on the palatal rugae and occlusion. The described method aims to
advance the difficult procedure of superimposing digital models in the
mandibular arch, but further research is nonetheless required in this
field.
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