, ● Buccal frenum: overlies depressor anguli oris. Movable by orbicularis
oris/buccinator → wide notch
● Lingual frenum: overlies genioglossus
● Buccal vestibule: denture periphery must end in ST. Stability comes from bony
foundations where tissues firmly attached to bone
● Buccal shelf: lat bound by EOR, med bound by crest of ridge. Buccinator
attachment. Flange rests on buccinator. Masseter may crowd buccinator fwd
→ indent @ DB
● RM pad: contains RM gland, pterygomd raphe, buccinator, temporal tendon.
Bone-resorption resistant! Coverage → some border seal
● Pterygomd raphe: extends from pterygoid hamulus (sup) to alveolar ridge (inf)
● Mylohyoid ridge: mylohyoid attachment (FOM)
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