الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Successful orthognathic treatment depends on the presence of a team work. This latter has to deal with treatment, beginning with the orthodontic preparation followed by surgical interference ending by settling of occlusion post surgically.
Recently three-dimensional (3D) surgical planning programs had been developed and used to analyze and predict the outcome following orthognathic surgery. Data on the validity of the predictions produced by these softwares are also very limited. Computer-assisted 3D virtual reality prediction planning following orthognathic surgery has developed over last decade to solve these problems.
The aim of the study was to assess the reliability of 3D virtual simulation in prediction of orthognathic surgery cases.
10 patients seeking orthognathic treatment were selected from the outpatient clinic of Maxillofacial Department, Faculty of Dentistry, Cairo University. All patients underwent the orthodontic pre-surgical preparation.
A commercially available software package for 3D orthognathic planning (Dolphin 3D) was used for creating a virtual 3D patient and simulating the surgical steps. In addition, the virtual plan was transferred to the operation room using 3D-printed splints.
Differences of the 3D measurements for the hard and soft tissues between the virtual plan and (Actual) postoperative outcome were assessed. Data were gathered and tabulated for statistical analysis.