J Korean Assoc Oral Maxillofac Surg.  2012 Dec;38(6):379-383. 10.5125/jkaoms.2012.38.6.379.

Oromandibular dystonia after dental treatments: a report of two cases

• Jang SM
• Cho YC
• Sung IY
• Kim SY
• Son JH

• KMID: 2136976
• DOI: http://doi.org/10.5125/jkaoms.2012.38.6.379

Abstract

Oromandibular dystonia (OMD) is a rare focal form of dystonia caused by prolonged muscles spasms in the mouth, face, and jaw. OMD can develop after dental treatment, as poorly aligned dentures or multiple tooth extraction may cause an impairment of proprioception in the oral cavity, leading to the subsequent development of dystonia. These repetitive involuntary jaw movements may interfere with chewing, swallowing, and speaking. We report here two cases of OMD after dental procedures.

Keyword

Tooth extraction; Dystonic disorders; Jaw; Tongue; Focal

MeSH Terms

Deglutition
Dentures
Dystonia
Dystonic Disorders
Jaw
Mastication
Mouth
Muscles
Proprioception
Spasm
Tongue
Tooth Extraction

Figure

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  Fig. 1 Radiological examination at the initial visit.

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  Fig. 2 Clinical photo revealing unstable occlusion.

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  Fig. 3 Electromyography activity was typically reflected as significant high-frequency and high-voltage activity of motor unit potentials with either sustained or short-duration bursts of discharge patterns at rest when normally electrically inactive.

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  Fig. 4 Botulinum toxin injection was done via the extraoral approach.

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  Fig. 5 Radiological examination at the initial visit.

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