Try In

Question 1

Explanation of what to expect

Answer 1

Not real dentures
They are only for looking, not for chewing. (Wax may be a little thicker in
some places for strength and for giving room to polish).
 The pattern may not be as retentive as the final dentures (blocked-out).
 The gingival color is a pink-tinted wax (Acrylic color can be customized!).

Question 2

Conformation approach

Answer 2

making the teeth look similar in
size and position

Question 3

Reorganized approach

Answer 3

making the teeth look
different as requested

Question 4

Now to record UDO in tryin

Answer 4

Record the VDO by measuring two skin points with a Boley gauge.
 Once with existing CDs, and once with wax-ups, then compare!

Question 5

ALMA gauge records

Answer 5

record the vertical and lateral distance between the
incisor edge and the incisive papilla intaglio in a denture and wax-up.
 These measurements allow for comparison and confirmation of tooth
positions.
Alma gauge measuring the anterior height and labial extension of an existing denture.

Question 6

Speech provides a functional assessment of an acceptable

Answer 6

interocclusal
dimension between the “rest” and “occlusal” positions of the mandible.

Question 7

 Counting through the 50s: “50, 51, 52, etc….”: This labial/dental-formed
sound will assess the

Answer 7

visibility and position of the upper anterior teeth
relative to the lower lip.

Question 8

Counting through the 60s, “60, 61, 62, etc.”: This lingual/dental-formed
sound will assess th

Answer 8

the position of the upper anteriors to the residual
alveolus
, the appropriate height of the upper and lower anterior teeth, and
the interocclusal airway space.

Question 9

The sibilant “s” sounds should be clear and crisp (Not crisp?

Answer 9

the upper
anteriors may be too short and/or set too high in front of the residual
alveolus.

Question 10

Speech assessment:

Answer 10

There should appear to be a slight but obvious
negative space (the closest speaking space) between the upper and lower
teeth during speech. (interincisal vertical separation 1 to 1.5 mm.)

Question 11

Speech assessment:

Answer 11

There should appear to be a slight but obvious
negative space (the closest speaking space) between the upper and lower
teeth during speech. (interincisal vertical separation 1 to 1.5 mm.)

Question 12

• If they do not fit the same way, a

Answer 12

a new corrected jaw relation records, tooth
setup, and try-in can be made to confirm the records as accurate before
processing.

Question 13

(the jaw should arc closed
along the

Answer 13

posterior border of the sagittal Posselt’s diagram (CR!).

Question 14

The correct occlusion should

Answer 14

The correct occlusion should not shift or move the denture bases !!!!

Question 15

The correct occlusion should not shift or move the denture bases !!!!

Answer 15

your registration and mounting are inaccurate.

Question 16

The best result for many of your patients may be a standard setup with a
minimum overbite

Answer 16

Ob 0.5 mm
Oj 1-2mm
Low incisal guidance

Question 17

Postdamming

Answer 17

If the posterior palatal seal (PPS) area has not been defined at the
impression appointment, it needs to be done now (Postdamming).
 This area is modified by scraping a groove 2 mm wide and deep into
the final stone model before denture processing (indents into the soft
tissue). Dr. Shadi prefers the cupid bow scraping!

Question 18

alteration provides several functions:

Answer 18

it compensates for the slight shrinkage of processed acrylic across the arch of the palate,
 peripheral seal is maintained during the slight movements of the denture on mucosa,
 posterior border of the denture can maintain adequate thickness for strength and yet
become less noticeable to the patient’s tongue as it blends into the mucosal contour.

Question 19

The PPS is located and confirmed by various methods:

Answer 19

 locating anatomy on the model (a line from hamular notch to hamular notch
through the fovea palatine). P.s. fovea can be anterior, posterior or at ah line
i.e. vibrating line.
 observing tissue color difference,
 mirror probing to assess tissue resilience and patient tolerance,
 observing soft palate movement: To judge the range of movement of the soft
palate, ask your patient to say “Ah, Ah” forcefully several times.

Question 20

? How long denture soaked for? Patient instructions

Answer 20

Dentures must be soaked in water for 72 hours for proper dimensional
hydration recovery, (or 2 hours by using low pressure water containers).
 Patient should be instructed to keep any previous dentures out of the mouth
for 24 hours before the insertion appointment (unhealthy and distorted
tissues affect denture seating= Fit & Occlusion).
 Alternatively is to have the existing dentures relined with a soft temporary
material to minimize tissue distortion problems.

Question 21

Dentures should be inspected digitally and by magnifying loupes:

Answer 21

1. tissue surface has no imperfections,
2. polished surface is smooth,
3. denture flanges have no sharp angles and are not too thick,
4. denture borders are round and smooth with no obvious overextension.

Question 22

Use of pressure-indicating paste (PIP) is essential to

Answer 22

Use of pressure-indicating paste (PIP) is essential to evaluate and improve
the adaptation of the denture to the tissue (mucosa compressibility!):
1. Pressure spots may have been present in the final impression,
2. Processing changes can create a slight contraction of the maxillary denture
base (lateral areas of tuberosity),
3. Bilateral undercuts on the residual ridge,
4. Relief for the thin mucosa over the mylohyoid ridge.
5. Thin mucosa over mentalis and incisive canal nerves.

Question 23

How to use PIP:

Answer 23

1. Dry the denture,
2. apply a thin even layer of PIP using a brush with the same direction,
3. painted surface may be sprayed with a silicone liquid or wetted with water,
4. Carefully seat the denture with firm finger pressure on the first molar areas
   (no biting! Occlusion is not completely corrected!).
5. Remove the denture immediately, inspect the pressure spots and grind.

Question 24

Adjustment of denture borders

Answer 24

Apply disclosing wax on an incremental dried denture border,
2. Seat the denture firmly with even finger pressure,
3. Instruct the patient to do the necessary border-molding movements,
4. Carefully remove the denture and adjust any visible pressure area or
overextension.

Question 25

Errors in occlusion

Answer 25

Can result from a number of factors:
1. Change in the state of the temporomandibular joints (TMJs),
2. inaccurate maxillomandibular relation records,
3. errors in the transfer of maxillomandibular relation records to the articulator,
4. ill-fitting temporary record bases,
5. change of the VDO on the articulator,
6. incorrect arrangement of the posterior teeth,
7. failure to close the flasks completely during processing,
8. use of too much pressure in closing the flasks,
9. Unavoidable processing changes in denture base material during polymerization,
10. Decasting of dentures,
11. Polishing and water absorption.

Question 26

Failure to correct occlusion before the patient wears the dentures can
causw

Answer 26

destruction of the residual alveolar ridges.

Question 27

Final correction of occlusal disharmonies is made at this time by means of
selective grinding that will:

Answer 27

1. give simultaneous contact around the arch in CR occlusion,
2. give simultaneous contact in eccentric movements,
3. maintain tooth form.

Question 28

Articulating ribbon of minimum thickness for
Grinding done by

Answer 28

marking contacts (12µ)
* Grinding occlusal errors is done with small stones or number 8 round bur.

Question 29

Articulating ribbon of minimum thickness for
Grinding done by

Answer 29

marking contacts (12µ)
* Grinding occlusal errors is done with small stones or number 8 round bur.

Question 30

The marking process and the grinding are repeated until all

Answer 30

Except anterior teeth in contact in cr

Question 31

achieving balanced occlusion, the functional cusp tips are

Answer 31

achieving balanced occlusion, the functional cusp tips are NOT reduced,
but rather the opposing fossae are made deeper and/or wider.