Document Detail


Treatment-induced errors in occlusion following orthognathic surgery.
MedLine Citation:
PMID:  3864375     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Posttreatment occlusion following orthognathic surgery is often different from that predicted in the treatment plan. Differences between intended and actual occlusion may be treatment-induced occlusal errors caused by mismatches between the centers of rotation of the mandible and of the articulated models. Discrepancies in the position of the articulator center of rotation (relative to the position of the center of rotation of the patient's mandible) influence the magnitude of occlusal errors. A computer model was developed to quantify these errors. As the center of rotation of the articulated models becomes more divergent from the patient's center of rotation, the magnitude of the occlusal errors increases. This magnitude increases most rapidly along the line that is perpendicular to the line joining the patient's center of rotation and a preselected mandibular landmark (incisor tip or molar cusp, for instance). For small changes in vertical dimension, clinically insignificant errors result, independent of the degree of mismatch between the centers of rotation. Clinical implications of these findings are discussed.
Authors:
E D Rekow; F W Worms; A G Erdman; T M Speidel
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American journal of orthodontics     Volume:  88     ISSN:  0002-9416     ISO Abbreviation:  Am J Orthod     Publication Date:  1985 Nov 
Date Detail:
Created Date:  1985-12-04     Completed Date:  1985-12-04     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0370501     Medline TA:  Am J Orthod     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  425-32     Citation Subset:  D; IM    
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MeSH Terms
Descriptor/Qualifier:
Computers
Dental Articulators
Dental Occlusion, Centric*
Humans
Incisor / anatomy & histology
Jaw Relation Record
Malocclusion / pathology,  surgery*
Mandible / pathology*
Models, Biological*
Molar / anatomy & histology
Postoperative Complications / etiology
Rotation
Vertical Dimension*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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