The manducatory apparatus is a functional entity that performs and / or participates in several originator functions of our physiology: breathing, Phonation, communicative facial expressions, but mastication and deglutition, are the only involving dental contacts, under the action of masticatory muscles .


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Fig. C1:   Young man 25 years old. Natural simulation of optimal chewing function, in class 1 of Angle.  The cycles described their dental envelope of border movements. All cycles with interposed feed are located inside this casing. It’s occlusal anatomy which defines and imposes the form of cycles.