2. Prepare the cement according to the
3. Carefully place mixed cement into each retainer
or crown in a manner that eliminates the possibility of
4. The dentist seats the prosthesis over the
prepared tooth or teeth and applies firm finger pressure
with a cotton roll to the occlusal or incisal surface to
express the excess cement (step B).
5. For posterior areas, the patient is instructed to
bite firmly into balsa wood, orange wood stick, or a
cotton roll that is placed over the prosthesis for the final
6. While the cement is still fluid, the dentist uses a
sharp explorer tip to examine the marginal fit and verify
the seating of the completed restoration.
7. Place a saliva ejector in the patient's mouth to
ensure the area remains dry while the cement sets.
8. Do not attempt to remove excess cement until it
has set to the point of being "brittle-hard".
9. When hard, use an instrument such as a
periodontal curette, to remove all cement from around
the restoration, tooth, and the gingival sulcus area (step
10. Gently floss the area, irrigate, and evacuate the
area to ensure it is clean.
Before dismissing patients with fixed prosthetics,
instruct them in procedures for cleaning the
REMOVABLE PARTIAL DENTURES
Some of the basic procedures for RPDs are the
same as FPDs, but require much more laboratory and
appointment sittings. The following is a typical
treatment plan you may be involved with if assisting
with the fabrication of an RPD. Each bullet represents
a secheduled appointment.
Prosthetic examination and alginate impressions
for study casts.
Mouth preparations for RPD framework and
Framework try-in and adjustment.
Final impression of edentulous ridges for
fabrication of the acrylic denture base, occlusal
registration, and denture tooth selection.
Figure 8-45.Steps in cementing a permanent FPD.
Deliver RPD and make initial adjustments as
Follow-up adjustment RPD appointments as
As with FPDs and RPDs, many of the basic
procedures are the same. With increased public
awareness on proper oral hygiene, personnel who
require complete dentures are becoming a very small
population of the armed services. The procedures that
you will assist in are interocclusal registration, tooth
and tooth shade selection, tooth arrangement,
impressions, and CD delivery.
As a chairside prosthetic assistant, you must
become familiar with the procedures of the prosthetic