Deglutition include the whole muscular and articular movements allowing to transfer the bolus (including saliva) from the buccal cavity to the digestive ways. It is made up of three successive phases: a buccal, a pharyngeal and an esophageal one.

Figure B1:  For more than 95% of the patients, the natural occlusion during swallowing is not placed in Centric Relation.


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