Chapter 3: Anatomy of the Edentulous Ridges Flashcards
Landmarks that do not change their position with function:
alveolar ridges and hard palate
Landmarks that change their shape with function:
frenula, vibrating line between soft and hard palate
The philtrum starts and ends here:
starts at the labial tubercle and ends at the nose
Labial tubercle:
ittle swelling in midportion of vermillion border of upper lip
vermillion border:
transitional area between skin and mucous membrane of upper and lower lips
Nasiolabial groove extends from the wing of the nose to:
some distance from corner of mouth
Labial mental groove:
sharp or deep groove that lies between lower lip and chin
maxillary and mandibular dental arches separate the oral cavity into
a facial vestibule and an oral cavity proper
Functional movements of the lips and cheek during impression making should reproduce:
position of the fornices
Facial vestibular anatomical landmarks on both arches:
fornix of the vestibule; free gingiva; attached gingiva; unattached gingiva(alveolar mucosa); interdental papilla; median labial frenums; buccal frenums; andcanine eminences
Fornix of the vestibule:
mucous membrane lining of the lipsand cheeks reflects and joins the unattached gingiva, or alveolar mucosa
TF? The fornix is the muccobuccal fold.
F
What determines the depth of the vestibule in the upper and lower jaws?
the site of the fornix (determined by muscle attachments to bony jaws)
Muscle that limits the buccal vestibule in the upper and lower jaws:
buccinator
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