The periphery of the upper denture commencing with the posterior border is as follows.
The posterior edge should sink slightly into the non-movable tissues of the soft palate following line from the hamular notch of one side to that of the other close to the fovea palati. The posterior border then traverses the hamular notch and rises up into the sulcus on the buccal side of the tuberosity. The height to which it rises is determined by the attachment of the buccinator in this region as that muscles sweeps backwards to its attachment to the hamulus. The space is also defined distally by the mandibular coronoid process and buccally by the contracting masseter muscles.
The posterior edge should sink slightly into the non-movable tissues of the soft palate following line from the hamular notch of one side to that of the other close to the fovea palati. The posterior border then traverses the hamular notch and rises up into the sulcus on the buccal side of the tuberosity. The height to which it rises is determined by the attachment of the buccinator in this region as that muscles sweeps backwards to its attachment to the hamulus. The space is also defined distally by the mandibular coronoid process and buccally by the contracting masseter muscles.
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