Trismus

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Locked jaw syndrome (inability to open or close the mouth) is a relatively uncommon clinical presentations in canine medicine[2].

There are numerous causes, each of which requires different treatment modalities.

Causes include:

Surgical intervention is recommended for temporomandibular joint ankylosis.

Treatment of masticatory muscle myositis involves gradual opening of the mouth, with medical treatment based on immunosuppressive therapy such as prednisolone or cyclosporin[3].

References

  1. Wikipedia.org
  2. Reiter AM & Lewis JR (2008) Locked jaw syndrome in dogs and cats: 37 cases. J Vet Dent 25(2):85
  3. 3.0 3.1 Gatineau M et al (2008) Locked jaw syndrome in dogs and cats: 37 cases (1998-2005). J Vet Dent 25(1):16-22