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Quintessence Publishing: Journals: ORTHODONTICS
The Art and Practice of Dentofacial Enhancement

Formerly World Journal of Orthodontics

Edited by
Rafi Romano, DMD, MSc (Editor-in-Chief)

ISSN 2160-2999 (print) / ISSN 2160-3006 (online)

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Fall 2010
Volume 11 , Issue 3

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A Clinical, MRI, And EMG Analysis Comparing The Efficacy Of Twin Blocks And Flat Occlusal Splints In The Management Of Disc Displacements With Reduction

Neeraj S. Rohida, MDS/Wasundhara Bhad, MDS

Pages: 236244
PMID: 20877732

Internal derangement of the temporomandibular joint (TMJ) is characterized by an abnormal disc-condyle relationship. Of all the various treatment modalities used in the management of disc displacements, flat occlusal and anterior repositioning splints are the most commonly used. Myofunctional appliances (such as bite-jumping appliances) are also advocated to treat anterior disc displacements. The present study compares the efficacy of twin blocks with conventional flat occlusal splints in patients with anterior disc displacement with reduction using clinical examination, MRI, and EMG. The sample consisted of 20 subjects between 12 and 20 years of age, who were randomly divided into two groups of 10 patients each: Group 1 was treated with twin blocks, while group 2 was treated using maxillary flat occlusal splints. The twin block is more effective in relieving joint pain, diminishing joint dysfunction, reducing joint clicking, and eliminating muscle tenderness in patients with anterior disc displacement with reduction as compared to the occlusal splint. World J Orthod 2010;11:236244.

Key words: twin blocks, occlusal splints, disc displacements, temporomandibular joint disorder, MRI

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