Fixed Prosthodontics SDLE MCQ | Part 3

Fixed Prosthodontics

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1 / 28

Category: Fixed Prosthodontics

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

Cast post and core

Composite core

Amalgam core

Prefabricated parallel post with composite core

2 / 28

Category: Fixed Prosthodontics

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

6-May

2-Jan

4-Mar

8-Jul

3 / 28

Category: Fixed Prosthodontics

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

Improve oral hygiene

Address esthetic concerns

Protect the pulp

Reduce sensitivity

4 / 28

Category: Fixed Prosthodontics

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

Centric stop

Centric relation

Working

Protrusive

5 / 28

Category: Fixed Prosthodontics

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

Cleaning with alcohol

Hydrofluoric acid

Phosphoric acid

Sandblasting

6 / 28

Category: Fixed Prosthodontics

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

Centric

Eccentric

Working

Protrusive

7 / 28

Category: Fixed Prosthodontics

7) 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?

Both arches violate Ante’s law

Mandible more movement due to violation of Ante’s law

No violation of Ante’s law

Maxilla more movement due to violation of Ante’s law

8 / 28

Category: Fixed Prosthodontics

8) 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

Connector fracture

Loosening of the retainer

Food debris beneath the pontic

9 / 28

Category: Fixed Prosthodontics

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

Proceed with the impression

Remake impression

Use a different impression material

Fill the void with wax

10 / 28

Category: Fixed Prosthodontics

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

Anterior jaw relation

Centric relation

Bilateral occlusion

Maximum intercuspation

11 / 28

Category: Fixed Prosthodontics

11) 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 incisal edge of mandibular anterior

Reduce the lingual incline of lower anterior

12 / 28

Category: Fixed Prosthodontics

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

Fractured crown

High occlusion

Metal allergy

Poor cementation

13 / 28

Category: Fixed Prosthodontics

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

Nasal base

Upper gingival margin

Lower lip

Upper lip

14 / 28

Category: Fixed Prosthodontics

14) What does high saturation mean in dental restorations?

Hue

Translucency

Chroma

Value

15 / 28

Category: Fixed Prosthodontics

15) 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?

Increased luting space of #11

Poor fit of the retainer

Poor marginal fit

Fractured connector

16 / 28

Category: Fixed Prosthodontics

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

Protrusive

Rest

Working

Centric

17 / 28

Category: Fixed Prosthodontics

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

New amalgam core

New composite core

Correct margins with the same material and fabricate a new crown

Referral for restorability

18 / 28

Category: Fixed Prosthodontics

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

Thick unsupported porcelain on the buccal side

Improper porcelain condensation

Compromised framework

Improper bond between porcelain and metal

19 / 28

Category: Fixed Prosthodontics

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

Re-cement the post and core

Cementation with GIC

Fabricate a new fiber post

Extract the tooth

20 / 28

Category: Fixed Prosthodontics

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

Zirconia

Composite

Gold

Amalgam

21 / 28

Category: Fixed Prosthodontics

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

Sensitivity

Short distal axial wall

Irreversible pulpitis

Pulp exposure

22 / 28

Category: Fixed Prosthodontics

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

TMJ problems

Misfit of crown

Poor occlusion

Esthetic issues

23 / 28

Category: Fixed Prosthodontics

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

Spacing

Discoloration

Short crown

Crowding

24 / 28

Category: Fixed Prosthodontics

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

Re-cement the FPD

Sectioning and soldering

Adjust the occlusion

Remake the FPD

25 / 28

Category: Fixed Prosthodontics

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

One-plane preparation

Over-contouring

Insufficient opaque layer

Poor bonding

26 / 28

Category: Fixed Prosthodontics

26) 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-fourth 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

27 / 28

Category: Fixed Prosthodontics

27) What is the purpose of flux in soldering?

To absorb hydrogen

Reduce oxide layer

For wetting

To improve the flow

28 / 28

Category: Fixed Prosthodontics

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

Re-cement the FPD

Remake the FPD

Modify the open margin in the lab

Modify the open margin on the dental chair

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