title: Planned to perfection? Use of the model repositioning instrument to plan maxillary movements for orthognathic surgery.
abstract: Previous studies have reported significant discrepancies between the surgical treatment objectives and final surgical results in orthognathic surgery patients. When dealing with complex asymmetrical maxillary movements in bimaxillary osteotomy patients, it can often be difficult to reposition the maxilla with a desirable degree of accuracy at the planning stage. Inaccurate placement of the maxilla can result in an unwanted repositioning of the mandible, which can lead to less than ideal functional and esthetic outcomes. The use of a model respositioning frame for orthognathic surgical planning is demonstrated. This can be utilized to position the maxilla at the model surgery stage with increased accuracy in both the vertical and horizontal plane. This frame can be used on semiadjustable articulators.
authors.affiliation: Royal Devon and Exeter NHS Foundation Trust, Exeter, United Kingdom. ansa_akram@yahoo.com
authors.forename: Ansa
authors.initials: A
authors.lastname: Akram
authors.forename: John
authors.initials: J
authors.lastname: Collin
authors.forename: Kathy
authors.initials: K
authors.lastname: Postlethwaite
authors.forename: George
authors.initials: G
authors.lastname: Sweeney
mesh_terms: D016302:Centric Relation; D003725:Dental Articulators; D006801:Humans; D019248:Jaw Fixation Techniques / Q000295:instrumentation*; D007574:Jaw Relation Record; D008437:Maxilla / Q000601:surgery*; D003765:Models, Dental; D056948:Orthognathic Surgical Procedures / Q000295:instrumentation / Q000379:methods*; D010027:Osteotomy / Q000379:methods; D010347:Patient Care Planning