PMID- 14580023
OWN - NLM
STAT- MEDLINE
DCOM- 20031216
LR  - 20111117
IS  - 0003-3219 (Print)
IS  - 0003-3219 (Linking)
VI  - 73
IP  - 5
DP  - 2003 Oct
TI  - Magnetic resonance imaging assessment of positional relationship between the disk 
      and condyle in asymptomatic young adult mandibular prognathism.
PG  - 550-5
AB  - The aim of this study was to clarify disk position relative to the condyle and 
      condylar position relative to the glenoid fossa in clinically asymptomatic and 
      orthodontically untreated young adult Class III patients by magnetic resonance 
      imaging (MRI). In addition, the relationship between skeletal Class III 
      morphology and positional changes of the temporomandibular joint (TMJ) components 
      were investigated. The material consisted of 34 bilateral sagittal oblique TMJ MR 
      images (MRIs) and lateral cephalometric radiographs taken in a closed mouth 
      position. The mean age of the patients was 20.71 +/- 0.82 years (range 16-29 
      years). Only clinically symptom-free subjects were included in this study. 
      Measurements made on the MRIs and lateral cephalographs were used to calculate 
      means and minimum and maximum values. The right and left TMJ variables were 
      compared with the Student's t-test. Correlation coefficients between bilateral 
      TMJ variables and skeletal variables were calculated. In the right TMJ, the disk 
      was positioned anteriorly and the condyle was positioned posteriorly, whereas the 
      left TMJ was normal. A negative correlation existed between the vertical skeletal 
      morphology and the anterior joint space of the TMJ. A positive correlation was 
      found between the left disk position and the vertical skeletal morphology because 
      of the differentiation of the condylar head angle in each side. As a result, 
      clinically asymptomatic Class III patients may be candidates for TMJ 
      derangements. For this reason, clinical and visual examinations should be 
      performed simultaneously to eliminate diagnostic errors before orthognathic 
      treatment.
FAU - Gokalp, Hatice
AU  - Gokalp H
AD  - Department of Orthodontics, School of Dentistry, Ankara University, Ankara, 
      Turkey. haticegokalp@yahoo.com
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PL  - United States
TA  - Angle Orthod
JT  - The Angle orthodontist
JID - 0370550
SB  - IM
MH  - Adolescent
MH  - Adult
MH  - Cephalometry
MH  - Humans
MH  - *Magnetic Resonance Imaging
MH  - Malocclusion, Angle Class III/pathology
MH  - Mandibular Condyle/*pathology
MH  - Patient Care Planning
MH  - Prognathism/*pathology
MH  - Temporal Bone/pathology
MH  - Temporomandibular Joint Disc/*pathology
EDAT- 2003/10/29 05:00
MHDA- 2003/12/17 05:00
CRDT- 2003/10/29 05:00
PHST- 2003/10/29 05:00 [pubmed]
PHST- 2003/12/17 05:00 [medline]
PHST- 2003/10/29 05:00 [entrez]
AID - 10.1043/0003-3219(2003)073<0550:MRIAOP>2.0.CO;2 [doi]
PST - ppublish
SO  - Angle Orthod. 2003 Oct;73(5):550-5. doi: 
      10.1043/0003-3219(2003)073<0550:MRIAOP>2.0.CO;2.