الفهرس 
Temporomandibular joint anatomyOnly 14 pages are availabe for public view
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Abstract
Temporomandibular joint disorder is a collection term embracing a
number of clinical problems involving the masticatory muscles, the
TMJ, or both. Various studies have been conducted to elucidate the
nature of TMD and its causes. However, it is still unclear whether
malocclusion is a cause of or only a predisposing factor in TMD. The
aim of this study was to evaluate the TMJ by magnetic resonance
imaging modality in patients having TMD and correlate the findings
to their skeletal classes of occlusion. Fifteen patients of both sexes
and age range 15-35 years, having signs & symptoms of TMD were
selected for this study. All the selected cases were interviewed and
were subjected to the following examination procedures (Detailed
case history and through clinical examination, Lateral cephalometric
radiographs to determine their skeletal classes of occlusion and MRI
examination in different planes for both joints at maximum mouth
opening position and maximum intercuspation). All cephalometric
and MRI findings were grouped, tabulated and statistically analyzed
using crosstab and logistic regression tests. It could be concluded
from this study that there was high distribution of TMD among
skeletal class 1 (i.e. with normal anter-posterior jaw relationship). It
was also concluded that MRI criteria of TMD weren’t affected by the
type of skeletal class of occlusion.