Document Detail

Three-dimensional evaluation of TMJ parameters in Class II and Class III patients.
MedLine Citation:
PMID:  19423969     Owner:  NLM     Status:  MEDLINE    
The aim of our study was to assess condylar parameters and condyle position within glenoid fossa of TMJ in volumetric 3D imaging in patients with Class II and Class III malocclusions. MATERIALS AND METHODS. The study group included 15 patients with severe skeletal Class II (mean age 18.0 yrs) and 14 patients with severe skeletal Class III ( mean age 19,2 yrs) with an indication for combined orthodontic and orthognathic treatment. CT examination was performed, pictures were reconstructed in three - dimensional (3D) rendering and measured in two dimension projection (2D) pictures using IAC review and Transparent bone programs to quantify following condylar and glenoid fossa parameters - glenoid fossa width and height; tuberculum articulare angle; anterior, superior and posterior joint space; height and width of condyle, height of procesus condylaris. Mean values were calculated separately for left and right side. Differences of the mean values were tested using paired t-test. RESULTS. There were statistically significant differences (p<0,05) between two study groups for all spatial measurements on both sides with larger spatial measurements in patients with Class II malocclusions. Also the height of procesus condylaris varied between groups with statistical difference. Unilateral differences were detected for width of fossa glenoidale and height of condyle. CONCLUSION. Results show that there are a tendency for smaller condyle and wider spaces between condyle and walls of glenoid fossa comparing TMJ of Class II with Class III patients.
Zane Krisjane; Ilga Urtane; Gaida Krumina; Katrina Zepa
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Stomatologija / issued by public institution "Odontologijos studija" ... [et al.]     Volume:  11     ISSN:  1392-8589     ISO Abbreviation:  Stomatologija     Publication Date:  2009  
Date Detail:
Created Date:  2009-05-08     Completed Date:  2009-12-01     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101248498     Medline TA:  Stomatologija     Country:  Lithuania    
Other Details:
Languages:  eng     Pagination:  32-6     Citation Subset:  D; IM    
Department of Orthodontics, Institute of Stomatology, Rigas Stradins University, Riga, Latvia, LV 1007.
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MeSH Terms
Imaging, Three-Dimensional / methods
Malocclusion, Angle Class II / pathology*
Malocclusion, Angle Class III / pathology*
Mandibular Condyle / pathology*,  radiography
Temporal Bone / pathology,  radiography
Temporomandibular Joint / pathology*,  radiography
Tomography, X-Ray Computed / methods
Young Adult

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