An orthognathic simulation system integrating teeth, jaw and face data using 3D cephalometry

Digital three-dimensional image fusion processes for planning and evaluating orthodontics and orthognathic surgery. A systematic review

“…Three different methods have been described for the integral fusion model 79,83,85,110 , of which one model was included in the search: a mean 3D head based on conventional cephalograms adjusted with 3D facial and dental data 79,83 ; a 3D head based on MSCT and MRI data 85 ; and the 3D virtual head based on the augmented model 110 (unpublished).…”

“…NOGUCHI et al 83 described a comparable image fusion technique using a conventional lateral and anteroposterior cephalogram (representing the axes of a Cartesian coordinate system) as a base to integrate a 3D laser scanned facial surface and a 3D laser scanned dental cast. In order to use the model for simulation of a bilateral sagittal split osteotomy, a generic MSCT model of a mandible is used, which is mathematically transformed (reshaped) before integrating it with the cephalograms and the dental casts.…”

Analysis of bone volume using computer simulation system for secondary bone graft in alveolar cleft

“…Accurate assessment of the cleft size and calculation of the bone volume required for bone grafting based on conventional X-ray and computed tomography (CT) imaging is difficult due to individual differences and the complex three-dimensional (3D) structure. With advancements in image processing technology, surgical simulations have been performed based on CT scan data in maxillofacial surgery 14,18 . With the spread of implant treatment, 3D diagnostic imaging of the jaw bone and preoperative simulation have been widely used in dental implant surgery 11,12,21 .…”

Clinical evaluation of the OP-TRACK (maxillary repositioning) device

“…In the year 2000, Csaszar and Niederdellmann utilized three-dimensional (3D) orthognathic surgery simulation in reproducing planned patient treatment 1 . Other procedures included virtual surgery on a computer-generated 3D head model simulated by a computerassisted 3D virtual osteotomy system for orthognathic surgery 2 , a complete 3D system of model surgery and navigation (computerized operation simulation and model operation system) 3 , computer-assisted simulation system for orthognathic surgery 2001 software for hard tissue prediction of orthognathic surgical procedures 4 , computer-assisted 3D virtual reality soft tissue planning and prediction for orthognathic surgery 5 , 3D cephalometry 6 and 3D imaging for virtual assessment and treatment planning 7 . Presently, there are no accurate techniques to determine the actual change in maxillary movement intraoperatively when compared with planned movements.…”