Try In

Question 1

Various aspects of try in

Answer 1

Intra-oral
Extra-oral

Question 2

Extra-oral examnition

Answer 2

1-master cast
2-trial denture base
3-articulater
4-teeth

Question 3

In intra-oral denture try in to reduce the contaminition the denture should be

Answer 3

Sprayed with an anti-septic spray and placed under running water

Question 4

How do we check the trial denture intra-oraly?

Answer 4

Sapperatly
1- max
2-md
3- mx-md together

Question 5

What do we check in the Maxillary Trial Denture Base

Answer 5

1-labial and buccal extention
2-PPS area
3-retention
4-stability
5-occlusion

Question 6

Examination of the extension:

Answer 6

Insertion of the Maxillary trial denture in its place w light presure and allow for functional movment of the cheeks and relase the denture if the denture displaced or moved then we need to adjust it

Question 7

Types of extention

Answer 7

1-over-extention of the falnges:
Stretch the sulcus tissues when denture is inserted, leads to elastic recoil resulting in dislodgment of the denture, immediate denture displacement after its seating.

2- under-extention
Poor physical retention even wo any functional movment

Question 8

Types of extension

Answer 8

A. Overextension of the flanges:
• Stretchthesulcustissueswhendentureisinserted, leads to elastic recoil resulting in dislodgment of the denture, immediate denture displacement after its seating.
B. Under extension :
leads to poor physical retention without any functional movement.

Question 9

PPS

Answer 9

extended from the one hamular notch to the other along the vibrating line of the soft palate, and correctly placed on the master cast.

Question 10

Retention

Answer 10

Retention of the trial dent is less than the complete dent why?
1-absence of PPS
2-poor adaptetion
3-mx dent is loosely placed

Question 11

How do we test the mx Retention?

Answer 11

Placing the thumb and forefingers in the central incisors and lingual of the canine and push outwards and upward

Question 12

How do we test the mx stabilty?

Answer 12

Place the ball of the index finger on the premolar and molar area on each side alternately (one at a time )

This pressure must be directed at right angles to the occlusal surface.

Question 13

When testing the stabilty of the mx dent Displacement can occur dur to what

Answer 13

1-instabilty
2-wrapge of the dent base
3-post teeth set buccal to the alveolar ridge

Question 14

The Denture base extension:

Answer 14

• The trial denture extension should be tested when patient opens half mouth opening to allow surrounding musculature be in an acceptable state of relaxation.

Question 15

Usually mandibular denture retention is poor when compared to maxillary denture due to:

Answer 15

1- smol dent bearing area
2- difeclty in obtaining proper border seal

Question 16

Testing of the Mandibular trial denture retention

Answer 16

Ask the paitent to place her tounge on the cingula of the anti teeth and pull the the teeth upward

Place presue on the canine on one side and watch the opposite retro molar pad

Question 17

Neutral zone &Tongue space

Answer 17

If there is no enough space for the tounge then its called cramped tounge

Question 18

Testing the tounge space

Answer 18

Ask the paint to rise their tounge and if its crampe the denture will rise with it

Question 19

The cramped tounge maybe due to?

Answer 19

1- teeth set more lingualy
2-teeth shifted lingualy
3- too broad buccu-lingual width

Question 20

Mandibular Occlusal Plain

Answer 20

The cusp tip of the 1st md premolar should be at a line with the lower lip

Theposteriorendoftheocclusalplaneshouldbe at the level of the two thirds of the retro molar pad in class I &II ridge height.
• Theposteriorendoftheocclusalplaneshouldbe at the level of the half of the retro molar pad in class III ridge height.

Question 21

Checking the Maxillary and Mandibular Trail Dentures

Answer 21

1-VDO and rest
2- centric relation and protrution
3-esthetic and phontics

Question 22

Closest Speaking Space

Answer 22

Is used to make sure that the VDO that we took is right

• s and counting 60-70

Question 23

Verify the mounting & CR record

Answer 23

Soften the wax over the Bunsen burner
Place it onto the occlusal surfaces of the mandibular posterior teeth Tips for making centric record
a) Recline the chair back, this will help retruded the mandible
b) Stabilize mandibular base with your index fingers with the thumbs under
the mandible (bimanual technique)
c) Practice closing with the patient
d) patient gently close into the wax just short of tooth contact.
e) Remove and trim the record so that only the indentations from the cusp
tips are present
f) Place the new record onto the master casts
g) Loosen the centric locking screw If the maxillary teeth contact the
indentations exactly as they did in the mouth, you have proven that your original centric record was correct. The articulator must close in the hinge position without condylar displacement

Question 24

When will do Remounting

Answer 24

1- error in the CR
2- erro in the VDO

Question 25

Facial support affected by:

Answer 25

1- incisal edge posion
2-contor and thickiness of the libial flanges
3-gingival counor
4-Contourofthe vermillion border region.

Question 26

Phonetic

Answer 26

Paitent should be able to say a clear F and V sounds with the lower lip touching the mx incisors
And S and Z with o teeth contact