3D assessment of the skeletal jaw stability after orthognathic surgery
Research type
Research Study
Full title
The 3D assessment of skeletal jaw stability following orthognathic surgery in surgery-first and orthodontic-first patients, and the relationship between skeletal stability with occlusion quality
IRAS ID
290178
Contact name
Ashraf Ayoub
Contact email
Sponsor organisation
NHS Greater Glasgow and Clyde
Duration of Study in the UK
4 years, 0 months, 0 days
Research summary
Orthognathic surgery is the preferred method for correction of dentofacial deformity.There are two approaches to this method: surgery-first approach (orthognathic surgery followed by orthodontic treatment)and the orthodontic-first approach (orthodontic treatment followed by surgery and post-surgery orthodontics).
Stability is one of the most important criteria to determine the success of orthognathic surgery. The Stability is defined as the maintenance of the skeleton and associated dental structures in the intended postoperative position over the long-term. The stability following surgery-first and orthodontic-first approach might be affected by the quality of occlusion, the fact which is not yet fully understood.
The retrospective study will be carried out on two equal groups of patients (surgery-first and orthodontic-first group). Digital models of dental occlusion will be generated from plaster models. The pre and post-operative 3D models that are extracted from orthognathic patient's CBCT (Cone Beam Computed Tomography)at Glasgow dental Hospital will be analysed by the intended software. The VRMesh software will be used to evaluate jaw skeletal surgical movements, skeletal stability and the quality of the postoperative occlusion.
REC name
North East - York Research Ethics Committee
REC reference
21/NE/0019
Date of REC Opinion
6 Jan 2021
REC opinion
Favourable Opinion