Primary and secondary impressions in complete dentures l removable prosthodontics MCQs

 

Primary and secondary impressions in complete dentures l removable prosthodontics MCQs for dental students

MCQ on primary and secondary  impressions in complete denture for removable prosthesis

1. For ulcers and unhealthy abused tissues , it is favorable to use

a. Neutral zone impression technique

b. selective displacement impression

c. Admixed impression technique

d. functional relining impression technique

 

2. For maxillary anterior flappy ridge ,prosthetic management can make

a. surgical removal

b. bone augmentation

c. open window impression technique

d. all of the above

 

3. with mandibular unemployed ridge ,favorable management is

a. selective displacement impression technique

b. splint method impression

c. open window technique

d. butterfly impression technique

 

4. With mandibular flat ridge with firmly attached mucosa ,the best way for impression is

a. selective displacement impression technique

b. admixed technique (mc cord Tyson )

c. open window impression technique

d. mucocompressive imprssion technique

 

5. The only material that can record functional movement of tissue is

a. mouth temperature wax

b. light body bite silicon material

c. tissue conditioner

d. PIP

 

6. Neutral zone impression technique is especially indicated for completely edentulous patient with

a. large torus palatinus

b. large tongue

c. large bilateral undercut

d. well developed ridge

 

7. All of the following are symptoms of Kelly syndrome except

a. overgrowth of tuberosity

b. flabby mandibular anterior region

c. papillary hyper plasia

d. mandibular posterior ridge resorption

 

8. The admixed of impression technique and tracing compound can be helpful in case of flat ridge covered by

a. flappy displaceable tissue

b. firmly attached mucosal tissues

c. atrophic non keratinized tissue

d. irritated unhealthy mucosal tissue

 

9. Functional relining impression is not related to occlusal relation of denture  

A.      True

B.      False

 

10. patient complain of bell's palsy ,or parkinsonism disease so has poor adaptation of muscles toward denture so need to manage this problem by

a. set teeth over crest of the ridge

b. making functional relining impression technique

c. decrease number of artificial teeth

d. making neutral zone impression technique

 

11. The posterior boundary of lower tray:

a. Buccal shelf bone

b. fovea palatina

c. retromolar pad

d. mylohyoid bone

 

12. its preferable to make mandibular impression at first as foreign body in mouth causes increased salivation rate

a. 1st statement is true, 2nd statement is false

b. 1st statement is false, 2nd statement is true  

c. both statements are true

d. both statements are false

 

13. for lower impression, operator should stand in. ........ O’clock while in upper should stand in ……. o'clock

a. 4-12

b. 11-1

c. 7-11

d. 11-7

 

14. regarding compound impression procedure, Compound is material shaped is as ……. In upper, while in lower shaped is ........

a. Cube — ball

b. roll — ball

c. ball — roll

d. roll — cube

 

15. The most posterior boundary to be recorded of maxillary impression is:

a. maxillary tuberosity

b. posterior palatal seal

c. fovea palatina

d. hamular notch

 

16. All of the maxillary are common faults in compound impression except:

a. sagging

b. insufficient material

c. improper mixing

d. pressure and exposed tray

 

17. Mix of alginate should be:

a. watery

b. creamy

c. thick trophy

d. solid

 

18. Metal showing during alginate procedure of lower arch is due to:

a. excessive salivation

b. tongue trapped under lingual flange

c. too much pressure used

d. mix failure

 

19. Which one of the following is based on pascal's law

a. Mucostatic theory

b. mucocomprssive theory

c. functional impression

d. selective pressure theory

 

20. The ideal impression material to be used minimal pressure impression

a. compound

b. thick mix alginate

c. agar-agar

d. plaster of paries