RPD Manual 11 - Removable Prosthodontics - Dalhousie University

Anatomy Tour - 7
RESIDUAL RIDGES (Identify on casts, and corresponding portions of dentures)
If ridges are severely resorbed, inform the patient, so they know denture fabrication and retention
will be difficult.
! Maxillary
! Mandibular
VESTIBULES (Identify on casts and corresponding portions of dentures)
If vestibules are short, inform the patient, so they know denture fabrication and retention will be
difficult.
! Maxillary Buccal
! Mandibular Buccal
! Mandibular Lingual
MAXILLA:
! Maxillary Tuberosities
These will be more easily observed in edentulous patients (identify, then see casts)
What influence will these structures have on dentures:
a) if they are oversized?
b) if they are severely resorbed?
c) if they are severely undercut? i.
ii.
! Incisive Papilla
Important landmark for setting of teeth (midline of papilla to labial of incisor !10mm)
On a partner, note the position and size of the papilla in relation to the teeth:
a. How far anterior to the incisive papilla are the central incisors? ____________mm
b. What is the mediolateral relation of the incisive papilla to the midline of the maxillary
teeth ___________________________________
! “Hamular” Notch
The posterior border of a complete denture and some partial dentures must pass through
this notch, between the bony tuberosity and hamulus. Denture border must terminate
on “soft displaceable tissue”, to provide comfort and retention. In some patients the
notch is posterior to where the depression in the soft tissue appears.
! Use the head of your mirror to palpate the notch & mark with an indelible marker.
! Posterior Border of the Hard Palate
- What significance is this border for maxillary complete and partial dentures?
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