Key Anatomical Landmarks of Edentulous Arches (plus a little more)
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Lecture given on 8/13/2025
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62 Terms
what structure is labeled A?
cameo surface
what structure is labeled B?
intaglio surface
what structures are labeled C and G?
border
what structure is labeled D?
buccal flange
what structure is labeled E?
labial flange
what structure is labeled F?
teeth
What structure is labeled A?
retromolar pad on cast
What structure is labeled B?
alveololingual sulcus on cast
What structure is labeled C?
buccal shelf on cast
What structure is labeled D?
residual ridge on cast
What structure is labeled E?
lingual frenum on cast
What structure is labeled F?
labial frenum on cast
What structure is labeled G?
labial vestibule on cast
What structure is labeled H?
buccal vestibule on cast
What structure is labeled I?
buccal frenum on cast
what is the primary stress bearing / primary support area on an edentulous mandible?
buccal shelf, posterior crest, retromolar pad
what is the secondary stress bearing / secondary support area on an edentulous mandible?
anterior crest
What structure is labeled A?
buccal vestibule on cast
What structure is labeled B?
labial vestibule on cast
What structure is labeled C?
labial frenum on cast
What structure is labeled D?
incisive papilla on cast
What structure is labeled E?
rugae on cast
What structure is labeled F?
buccal frenum on cast
What structure is labeled G?
residual ridge on cast
What structure is labeled H?
vibrating line on cast
What structure is labeled I?
medial palatine raphe on cast
What structure is labeled J?
hamular notch on cast
What structure is labeled K?
maxillary tuberosity on cast
what are the primary stress bearing / primary support areas on an edentulous maxilla?
posterior ridge crest, palatal surface
what are the secondary stress bearing / secondary support areas on an edentulous maxilla?
palatal rugae, anterior ridge crest
What structure is labeled with a yellow arrow?
labial frenum on human
what structure is circled in blue?
lingual frenum on human
what structure is circled in black (salmon colored U shape)?
residual ridge on human
what structure is highlighted in green?
buccal shelf on human
what structure is highlighted in light blue?
buccal vestibule on human
what structure is marked by the yellow lines?
buccal frenum on human
what structure is highlighted in blue?
retromylohyoid space on human
what structure is circled in black and highlighted in salmon?
residual ridge on human
what structure is circled in black and has a black dot?
retromolar pad on human
what structure is outlined in green?
pterygomandibular raphe on human
what structure are the black arrows pointing to?
fovea palatini on human
what structure is demonstrated by the white line?
vibrating line on human
what structure is demonstrated by the pink line?
hard-soft palate junction on human
what structure is demonstrated by the green highlight?
posterior palatal seal on human
what structure is outlined in yellow?
hamular notch on human
what structure is circled in black and highlighted in salmon?
residual ridge on human
what structure is highlighted in yellow?
maxillary tuberosity on human
what structure is highlighted in blue?
maxillary rugae on human
what structure is shaded in gray?
hard palate on human
what structure is shaded in green?
soft palate on human
what structure is circled in yellow?
midpalatine suture or raphe on human
what structure is circled in blue?
incisive papilla on human
what structure is shaded in green?
incisive papilla on human
what structure is shaded in orange?
buccal vestibule on human
what structure is indicated by the green lines?
buccal frenum on human
what structure is shaded in blue?
labial vestibule on human
what structure is indicated by the yellow line?
labial frenum on human
why would it be extremely uncomfortable for a maxillary denture to press on the incisive papilla?
that is where the nasopalatine nerve is located
what happens to the maxilla when a patient becomes edentulous?
the arch becomes narrower
what happens to the mandible when a patient becomes edentulous?
the arch becomes wider
in which direction does anterior alveolar ridge resorption occur in edentulous patients?
lingually
where does anterior bone resorption occur faster: maxillary anterior bone or mandibular anterior bone?
mandibular anterior bone (can be up to 4x faster than maxilla)
Note 
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