Fixed Prosthodontics SDLE MCQ | Part 3

Fixed Prosthodontics

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1 / 28

Category: Fixed Prosthodontics

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

2-Jan

4-Mar

8-Jul

6-May

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Category: Fixed Prosthodontics

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

Short distal axial wall

Sensitivity

Pulp exposure

Irreversible pulpitis

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Category: Fixed Prosthodontics

3) What is the purpose of flux in soldering?

To improve the flow

For wetting

Reduce oxide layer

To absorb hydrogen

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Category: Fixed Prosthodontics

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

Centric

Protrusive

Eccentric

Working

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Category: Fixed Prosthodontics

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

Modify the open margin in the lab

Remake the FPD

Re-cement the FPD

Modify the open margin on the dental chair

6 / 28

Category: Fixed Prosthodontics

6) 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

7 / 28

Category: Fixed Prosthodontics

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

Rest

Working

Centric

Protrusive

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Category: Fixed Prosthodontics

8) 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?

Fractured connector

Poor marginal fit

Poor fit of the retainer

Increased luting space of #11

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Category: Fixed Prosthodontics

9) What does high saturation mean in dental restorations?

Hue

Chroma

Translucency

Value

10 / 28

Category: Fixed Prosthodontics

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

Short crown

Spacing

Crowding

Discoloration

11 / 28

Category: Fixed Prosthodontics

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

Working

Centric relation

Protrusive

Centric stop

12 / 28

Category: Fixed Prosthodontics

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

Improper porcelain condensation

Improper bond between porcelain and metal

Compromised framework

Thick unsupported porcelain on the buccal side

13 / 28

Category: Fixed Prosthodontics

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

Centric relation

Anterior jaw relation

Bilateral occlusion

Maximum intercuspation

14 / 28

Category: Fixed Prosthodontics

14) 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

15 / 28

Category: Fixed Prosthodontics

15) 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 mandibular anterior

Reduce the incisal edge of maxillary anterior

Reduce the lingual incline of lower anterior

16 / 28

Category: Fixed Prosthodontics

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

Protect the pulp

Reduce sensitivity

Improve oral hygiene

Address esthetic concerns

17 / 28

Category: Fixed Prosthodontics

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

Metal allergy

High occlusion

Poor cementation

Fractured crown

18 / 28

Category: Fixed Prosthodontics

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

Use a different impression material

Remake impression

Proceed with the impression

Fill the void with wax

19 / 28

Category: Fixed Prosthodontics

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

Poor occlusion

TMJ problems

Esthetic issues

Misfit of crown

20 / 28

Category: Fixed Prosthodontics

20) 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?

Loosening of the retainer

Open margins of the retainer

Connector fracture

Food debris beneath the pontic

21 / 28

Category: Fixed Prosthodontics

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

Prefabricated parallel post with composite core

Composite core

Amalgam core

Cast post and core

22 / 28

Category: Fixed Prosthodontics

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

Re-cement the FPD

Remake the FPD

Sectioning and soldering

Adjust the occlusion

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Category: Fixed Prosthodontics

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

Gold

Composite

Amalgam

Zirconia

24 / 28

Category: Fixed Prosthodontics

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

Lower lip

Upper lip

Upper gingival margin

Nasal base

25 / 28

Category: Fixed Prosthodontics

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

Phosphoric acid

Cleaning with alcohol

Sandblasting

Hydrofluoric acid

26 / 28

Category: Fixed Prosthodontics

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

Re-cement the post and core

Extract the tooth

Cementation with GIC

Fabricate a new fiber post

27 / 28

Category: Fixed Prosthodontics

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

Referral for restorability

New composite core

Correct margins with the same material and fabricate a new crown

New amalgam core

28 / 28

Category: Fixed Prosthodontics

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

Over-contouring

One-plane preparation

Insufficient opaque layer

Poor bonding

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