[Muscular insertions on the temporo-mandibular disk. Physiologic implications].
The aim of this work was to identify the elements of an anatomical consensus about the description of the direct and indirect muscular insertions on the temporomandibular meniscus. A classical dissection was performed on two joints and completed with a histological study. Fourteen joints were studied, after deep-freezing of fresh whole heads, with 3-millimeter thick macroscopic sections in the coronal, sagittal and axial planes and in a plane perpendicular to the axis of the condyle. The study of the specimens with a binocular magnifying glass was completed by oriented histological sections after fixation in 10% formaldehyde. The comparison of our findings with the studies published in the literature shows that the ideas are evolving towards an anatomical consensus about the reality of the direct and indirect insertion of the sole mandibular elevator muscles on the temporomandibular articular disk. The classical description of the dynamics of the meniscus must therefore be changed.
Scheffer
P
P
Service de Stomatologie, Chirurgie maxillo-faciale, Centre Hospitalier, Villeneuve, Saint Georges.
Roucayrol
A M
AM
Boudon Brière de l'Isle
R
R
D006801:Humans; D008410:Masticatory Muscles / Q000033:anatomy & histology* / Q000502:physiology; D013704:Temporomandibular Joint / Q000033:anatomy & histology* / Q000502:physiology
Les insertions musculaires sur le disque temporo-mandibulaire. Implications physiologiques.