Orthognathic model surgery and wafer preparation: The Great Ormond Street Hospital approach
- Friday 27 April, 2:00 - 3:00
- This lecture is presented by: James Green
- This session will take place in: Room 4 technician
Orthognathic surgery is surgery where bone is cut, moved, modified, realigned and held in place with plates and screws to correct maxillo-mandibular skeletal discrepancies that cannot be treated with orthodontics alone. This involves three dimensional manipulation of the maxilla, the mandible or both (known as a bimaxillary osteotomy).
Model surgery forms an integral part of orthognathic surgery planning. Early pioneers relied upon their surgical expertise or unarticulated models to predict the post-operative position. Today, models mounted on an anatomical articulator with a facebow are routinely used to simulate the surgical movements and fabricate the occlusal wafers that are used to position the jaws in their desired position during the surgical procedure.
This presentation offers a step-by-step guide to the straightforward, accurate and efficient system for orthognathic model surgery planning and wafer preparation used at London’s Great Ormond Street Hospital.
Aims and Objectives
1. Gain an understanding of what orthognathic surgery is and why it is necessary
2. Gain an understanding of the types of orthognathic surgery
3. Gain an understanding of orthognathic model surgery techniques
4. Gain an understanding of what surgical wafers are and why they are necessary.
1. Know how to articulate dental casts with a semi adjustable articulator
2. Know how to simulate orthognathic surgery using articulated dental casts
3. Know how to prepare surgical wafers.