[Prognosis of the facial profile line using the finite element method].
OBJECTIVE
The aim of the present study was to verify how realistic the prediction of the clinical appearance of the patient's profile is by using the finite element method to simulate orthodontic and surgical intervention.


METHODS
This single-case study explains step by step interdisciplinary treatment planning in a case with angle class III. Orthodontic and surgical procedures can be simulated and visualized using the lateral cephalogram and the Onyx Ceph software. The facial profile line is calculated over the skeletal surface using the finite element method. The morphing feature of the Onyx Ceph software is used to create an image of the predicted appearance of the patient's profile using a preoperative lateral photograph.


RESULTS
The comparison of the simulated profile and the clinical result after bimaxillary surgery showed high concordance.


CONCLUSIONS
The finite element method represents a useful tool for the prediction of the postoperative appearance in patients undergoing fixed orthodontic appliance and orthognathic surgery.
Holler
B E
BE
Poliklinik für Kieferorthopädie, Friedrich-Alexander-Universität Erlangen Nürnberg.
Eckardt
R
R
Neukam
F W
FW
Hirschfelder
U
U
D000328:Adult; D002508:Cephalometry / Q000379:methods*; D003198:Computer Simulation; D004954:Esthetics; D005145:Face; D005260:Female; D020342:Finite Element Analysis; D006801:Humans; D008313:Malocclusion, Angle Class III / Q000601:surgery*; D019647:Oral Surgical Procedures; D009971:Orthodontics, Corrective; D010348:Patient Care Team; D011379:Prognosis; D012984:Software