The effectiveness of local anesthetic and sodium hyaluronate injection for the posterior disc displacement: A case report

Yui Mori, Kenji Kakudo, Hideya Haeniwa, Motohiro Gotoh, Hirohito Kubo, Yuichi Ohnishi, Masahiro Nakajima, Harumi Iwasaki, Hironori Akiyama, Yoritaka Yotsui, Kimishige Shimizutani

Department of Oral Radiology, Osaka Dental University, Osaka, Japan.
Second Department of Oral and Maxillofacial Surgery, Osaka Dental University, Osaka, Japan.

DOI: 10.4236/ojst.2013.33038                

Abstract

Posterior disc displacement of the temporomandibular joint is rare. We present a unique treatment method and magnetic resonance (MR) images of this condition. The patient was a 43-year-old male with a chief complaint of abnormal occlusion. Regarding the present status, there was no occlusion on the right side. No temporomandibular joint pain, myalgia, or clicking were observed while mouth opening. On MR images, the posterior disc displacement without reduction on the right was observed and it was assumed that occlusal abnormality was due to this condition. We treated him with the following methods. After injection into the superior articular cavity with 2% lidocaine, a sodium hyaluronate preparation was injected followed by intermaxillary traction applied using rubber. The recovery of occlusion was confirmed in follow-up at 5 days after treatment. In the 13^th days, the intermaxillary traction was removed. On MR images, the right disc condition was changed to anterior disc displacement with reduction. We consider our treatment methods are effective for this clinical condition.

Keywords

Posterior Disc Displacement without Reduction; Temporomandibular Joint; Local Anesthetic with Sodium Hyaluronate Injection; Intermaxillary Traction; Magnetic Resonance Imaging.

Conflicts of Interest

The authors declare no conflicts of interest.

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