Abstract
Our purpose was to develop a reproducible and easy-to-use technique to establish the
best place to inject the temporomandibular joint (TMJ) that ensured stable positioning
of the condylar process. We implemented a 3-dimensional process to treat osteoarthritis
of the TMJ with hyaluronic acid that was guided by cone-beam computed tomography (CT),
and stabilised with a maxillomandibular wax bite block. Two wax rims (fabricated from
previously-taken impressions) were attached together securely to stabilise the condyles
during imaging and to fix the maxillomandibular position. The use of 3-dimensional
cone-beam CT increased the accuracy of the injection. The point, angle, and depth
were ascertained precisely, which was intended to ensure safety and give the physician
confidence, even when treating patients with anatomical anomalies. The procedure had
good stability (the displacing effect of muscle contraction was eliminated) and it
presented an easy and reproducible 3-dimensional method for injecting the TMJ that
was safer than the conventional one.
Keywords
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Article info
Publication history
Published online: September 21, 2019
Identification
Copyright
© 2019 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.
