Fixed Prosthodontics SDLE MCQ | Part 3

Fixed Prosthodontics

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1 / 28

Category: Fixed Prosthodontics

1) A patient has a discolored GI core and poor margins. What is the best treatment?

Referral for restorability

Correct margins with the same material and fabricate a new crown

New composite core

New amalgam core

2 / 28

Category: Fixed Prosthodontics

2) A lower molar (#7) with a conservative RCT access and intact walls needs restoration. What is the best option?

Amalgam core

Cast post and core

Prefabricated parallel post with composite core

Composite core

3 / 28

Category: Fixed Prosthodontics

3) Where should the contact area be placed for a laminate veneer with lingual extension?

Half of the lingual surface and 1 mm away from centric contact

One-third of the lingual surface and 1.5 mm away from centric contact

One-fourth of the lingual surface and 0.5 mm away from centric contact

One-fourth of the lingual surface and 1 mm away from centric contact

4 / 28

Category: Fixed Prosthodontics

4) A patient wants to replace #12 with a 3-unit bridge from #11-13. During metal try-in, there is a bubble. What does this mean?

Poor marginal fit

Fractured connector

Increased luting space of #11

Poor fit of the retainer

5 / 28

Category: Fixed Prosthodontics

5) An FPD with gold has rocking during metal try-in. What should be done?

Adjust the occlusion

Re-cement the FPD

Remake the FPD

Sectioning and soldering

6 / 28

Category: Fixed Prosthodontics

6) What is the best core material for a ceramic crown?

Zirconia

Gold

Amalgam

Composite

7 / 28

Category: Fixed Prosthodontics

7) A patient complains of slight deflection in rest one day after crown placement. What is the issue?

Centric

Protrusive

Working

Rest

8 / 28

Category: Fixed Prosthodontics

8) What is the first step in preparing lithium disilicate for cementation?

Phosphoric acid

Sandblasting

Hydrofluoric acid

Cleaning with alcohol

9 / 28

Category: Fixed Prosthodontics

9) A patient has a peg lateral with localized gingivitis. What is the main objective of fabricating a provisional crown?

Improve oral hygiene

Protect the pulp

Address esthetic concerns

Reduce sensitivity

10 / 28

Category: Fixed Prosthodontics

10) What is the purpose of flux in soldering?

To improve the flow

To absorb hydrogen

Reduce oxide layer

For wetting

11 / 28

Category: Fixed Prosthodontics

11) A mesiolingual gold onlay causes deflection during closing. What is the problem?

Protrusive

Working

Centric stop

Centric relation

12 / 28

Category: Fixed Prosthodontics

12) A patient complains of bad taste and smell after a 3-unit FPD. Bubbles appear in the cervical region of a retainer. What is the cause?

Open margins of the retainer

Food debris beneath the pontic

Loosening of the retainer

Connector fracture

13 / 28

Category: Fixed Prosthodontics

13) A dentist over-prepared tooth #44 for a metal-ceramic crown, resulting in porcelain chipping. What is the cause?

Improper bond between porcelain and metal

Improper porcelain condensation

Thick unsupported porcelain on the buccal side

Compromised framework

14 / 28

Category: Fixed Prosthodontics

14) A child has interference in eccentric movement in the anterior teeth. How to manage?

Reduce the lingual incline of upper anterior

Reduce the incisal edge of maxillary anterior

Reduce the lingual incline of lower anterior

Reduce the incisal edge of mandibular anterior

15 / 28

Category: Fixed Prosthodontics

15) During impression for a PFM crown, there is a void in the facial surface margin. What should be done?

Remake impression

Proceed with the impression

Fill the void with wax

Use a different impression material

16 / 28

Category: Fixed Prosthodontics

16) A patient has a mesially tilted #47 for a 3-unit FPD. What is the most likely complication?

Irreversible pulpitis

Sensitivity

Short distal axial wall

Pulp exposure

17 / 28

Category: Fixed Prosthodontics

17) A patient has a broken post and core. What is the best treatment?

Fabricate a new fiber post

Cementation with GIC

Re-cement the post and core

Extract the tooth

18 / 28

Category: Fixed Prosthodontics

18) The incisal edge of upper front teeth during a smile should be in harmony with:

Lower lip

Upper lip

Nasal base

Upper gingival margin

19 / 28

Category: Fixed Prosthodontics

19) A patient complains of opacity in the incisal third of a crown. What is the cause?

Poor bonding

One-plane preparation

Over-contouring

Insufficient opaque layer

20 / 28

Category: Fixed Prosthodontics

20) A patient with destroyed lower posterior teeth and missing premolars needs full-mouth rehabilitation. How should occlusion be established?

Bilateral occlusion

Maximum intercuspation

Anterior jaw relation

Centric relation

21 / 28

Category: Fixed Prosthodontics

21) A female patient is concerned about her anterior teeth. What is the most likely issue?

Crowding

Short crown

Discoloration

Spacing

22 / 28

Category: Fixed Prosthodontics

22) What is the minimum number of teeth required for good restoration without harming the gingiva?

2-Jan

8-Jul

4-Mar

6-May

23 / 28

Category: Fixed Prosthodontics

23) A patient has a crown on an upper molar, and the jaw moves anterior-superiorly during closure. What type of interference is this?

Working

Centric

Eccentric

Protrusive

24 / 28

Category: Fixed Prosthodontics

24) What does high saturation mean in dental restorations?

Translucency

Hue

Value

Chroma

25 / 28

Category: Fixed Prosthodontics

25) What happens if anterior guidance is neglected in anterior teeth replacement?

TMJ problems

Misfit of crown

Poor occlusion

Esthetic issues

26 / 28

Category: Fixed Prosthodontics

26) A patient has pain and erythema one day after cementing a PFM crown. What is the cause?

High occlusion

Fractured crown

Metal allergy

Poor cementation

27 / 28

Category: Fixed Prosthodontics

27) A patient is missing teeth #23 and #33. Will replacing them with FPDs from #21-x-24 and #31-x-34 violate Ante’s law?

Maxilla more movement due to violation of Ante’s law

Both arches violate Ante’s law

No violation of Ante’s law

Mandible more movement due to violation of Ante’s law

28 / 28

Category: Fixed Prosthodontics

28) A patient has an FPD with roughness and dental floss breaks. What is the management?

Modify the open margin in the lab

Modify the open margin on the dental chair

Re-cement the FPD

Remake the FPD

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