15. Finished Tray Wax is left
in place until
border molding
is completed.
Tray is cut back Note the size
to the 2mm wax and shape of
spacer. the handles.
16. Tray Extensions
Before the final
impressions are made
ALWAYS check the
trays for proper fit
and extension.
29. Border mold the
mandibular tray first.
•Less chance of gagging patient.
•Patient is more cooperative.
•Familiarizes patient with procedure.
•Allays apprehension.
30. •Start by doing small areas.
•Do the critical areas first.
•Lingual Frenum
• Labial Frenum
• Buccal Frenum
52. Polyether
A
B
A.Load tray with polyether
impression material.
B. Place tray in mouth.
C. Borders of tray are
C defined by impression.
53. Polyether
Follow the same procedure for the
maxillary impression. The most
obvious difference between the two
trays is that the maxillary border
molding does not cover the tray.
82. Vibrating Line
Imaginary line across the
posterior part of the palate,
marking the division between
the moveable and immovable
tissues of the soft palate.
83. Foveae
Palatina
Two small pits, one on each
side of the mid-line, near the
junction of the hard and soft
palate.
93. Vibrating Line
Located within these areas
according to the type of soft
palate. The area must be
palpated to determine how
far the line can be placed.
94. Vibrating line
Class III
Placement Zone
CD
Bead
End of Denture
95. Locating the Post-Dam
•Dry the area with 4X4
gauze.
•Palpate the tuberosity,
midpalatal raphae, and
hamular nitch.
108. Box and Pour
•Rim, box, pour, separate,
and trim the final cast.
•You will need to retrace
the marks on the cast so
that the post palatal seal
is clearly marked.