Document Details

Document Type : Article In Journal 
Document Title :
THE ROLE OF THE SUPERIOR HEAD OF LATERAL PTERYGOID MUSCLE IN DISC DISPLACEMENT OF THE TEMPOROMANDIBULAR JOINT
THE ROLE OF THE SUPERIOR HEAD OF LATERAL PTERYGOID MUSCLE IN DISC DISPLACEMENT OF THE TEMPOROMANDIBULAR JOINT
 
Document Language : English 
Abstract : The superior head of lateral pterygoid muscle has been implicated as one of the main causative factors of the antromedial displacement of the temporomandibular joint disc. This study was de¬signed to investigate the site of lateral pterygoid muscle insertion into the temporomandibular joint disc and the relationship between that attachment and disc displacement. Magnetic resonance im¬ages of 15 temporomandibular joints of 11 patients with anterior disc displacement were taken in the sagittal plan using T1 and T2 weighted images. The images were analyzed three times with an inter¬val of one week between each interpretation. The results were 4 out of 12 joints with insertion of the superior head of the lateral pterygoid muscle in both disc and condylar fovea had non-reducible disc displacement. On the other hand, 1 (one) out of the 3 joints with insertion directly into the disc had irreducible disc. Based on our ob¬servations, these results show that the superior head of the lateral pterygoid muscle has higher ten¬dency for insertion into both the condylar fovea and the disc rather than insertion into the disc only. Furthermore, the role of the superior head of the lateral pterygoid muscle in disc displacement is de¬emphasized. 
ISSN : 0 
Journal Name : Egyptian Dental Journal 
Volume : 44 
Issue Number : 1 
Publishing Year : 1998 AH
1998 AD 
Article Type : Article 
Added Date : Saturday, March 20, 2010 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
ٍعاد منصورMansour, Soad InvestigatorDoctorate 

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