[Otologic manifestations of the pain dysfunction syndrome of the stomatognathic system].
Phylogenesis, ontogenesis and anatomy explain the close relationship between temporo-mandibular joint and the middle ear and can therefore help understanding otologic symptoms such as: otalgia which often correspond to articular and muscular pain irradiation (coming from sterno-cleido-mastoid, lateral and medial pterygoid, deep layer of the masseter and temporal muscles); acouphens and ear block sensation that could be caused by a spasm extension of the manducatory (i.e. medial pterygoid) to levator and tympani tensors. These three muscles, which originate from the first branchial arch, have a proprioceptive sensitivity and share the same innervation. What is more tensor and levator veli exchange certain muscular fibers. Tensor tympani spasm can be held responsible both for a decrease or abolition of the Klockhoff's reflex, together with a decrease of the stapedian reflex, the latter due to tympani rigidity induced by a spasm of the tensor tympani.
Gola
R
R
Service de Stomatologie, Chirurgie maxillo-faciale et plastique de la face, CHU Nord, Marseille.
Chossegros
C
C
Orthlieb
J D
JD
Lepetre
C
C
Ulmer
E
E
D004427:Ear Diseases / Q000209:etiology*; D006801:Humans; D013284:Stomatognathic System / Q000033:anatomy & histology / Q000473:pathology / Q000503:physiopathology; D013706:Temporomandibular Joint Dysfunction Syndrome / Q000150:complications*
Manifestations otologiques du syndrome algodysfonctionnel de l'appareil manducateur (S.A.D.A.M.).