Recent advances in technology have made threedimensional
imaging and analysis possible. Different
three-dimensional technologies such as 3-D
cephalometry, morphoanalysis, moiré topography,
multislice CT-assisted imaging, cone beam CT and
MRI scanning, 3-D laser scanning and photographic
modalities have been developed. None of these
imaging techniques can alone capture and represent
the true relationship between facial skeleton, soft
tissue and dentition. Only image fusion models of
different imaging techniques can create a 3-D virtual
head displaying all of these elements. On the basis of
such accurate 3-D face/head reconstruction a realistic
prediction model of soft and hard tissues changes can
be created.