The oblique ridge, mylohyoid ridge, and submandibular fossa are all anatomical landmarks that can be found on radiographs of the mandibular posterior region.

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These are all anatomical landmarks that can be visualized on radiographs of the mandibular posterior region. The oblique ridge refers to a bony ridge that runs diagonally across the mandibular molars, separating the buccal and lingual cusps. The mylohyoid ridge is a bony ridge located on the lingual surface of the mandible, just below the teeth, where the mylohyoid muscle attaches. The submandibular fossa is a depression on the lingual surface of the mandible, below the mylohyoid ridge, where the submandibular salivary gland resides.

The Oblique Ridge, Mylohyoid Ridge, and Submandibular Fossa Are All