In the maxillary arch, the lingual gingiva changes to alveolar mucosa, as it does in the mandibular arch. Palatal mucosa is thick and keratinized.

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In the maxillary arch the lingual gingiva does not change into alveolar mucosa but is directly continuous with the masticatory mucosa of the hard palate. This palatal mucosa is generally the thickest in the oral cavity and the most likely to be keratinized.

In the Maxillary Arch, the Lingual Gingiva Changes to Alveolar