Restorative Dentistry

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April 2021 RD

Restorative Dentistry Part 10 April 2021 RD

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Question 1 of 25
1. Question
How many blades does a polishing carbide bur have?
- A No Blades
- B 6-8 Blades
- C 10-12 Blades
- D More Than 12 Blades
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Question 2 of 25
2. Question
When finishing the margins of a wax pattern for FPD, which of the following must be checked?
- A Thickness Of The Margins
- B Extension Of The Margins
- C Ripples
- D All Of The Above
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Question 3 of 25
3. Question
When a dentist apply a strong light source to the tooth so that the light is traveling perpendicular to the plane of the suspected crack. In most instances this means we apply the light source to the labial or lingual tooth surfaces., what is it called?
- A Crack Lines
- B Fracture Line
- C Enamel Hypoplasia
- D Enamel Dysplasia
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Question 4 of 25
4. Question
Patient came to clinic after 5 days of treatment of class 4 mesioincisal angle of central incisor, complaining of discoloration of the restoration. What is your treatment of choice?
- A Replace The Restoration
- B Remove The Facial Layer Of Composite
- C Apply A Layer Of Composite
- D Etch The Composite And Then Add One Layer
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Question 5 of 25
5. Question
Base under composite is
- A GIC
- B Zoe
- C Zinc Phosphate
- D Copalite
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Question 6 of 25
6. Question
Clamp for fully erupted molars is?
- A 2A
- B 3A
- C 14
- D 14A
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Question 7 of 25
7. Question
Base used under amalgam is?
- A GIC
- B Composite
- C Zinc Phosphate
- D Copalite
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Question 8 of 25
8. Question
Hanks balanced salt solution is for?
- A Avulsed Tooth
- B Extracted Tooth
- C Root Canal Treated Tooth
- D Fractured Tooth
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Question 9 of 25
9. Question
What is the recommended fluoridation dose for children aged 6 months to 3 years?
- A 0.25 Mg
- B 0.5 Mg
- C 1.0 Mg
- D 1.25 Mg
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Question 10 of 25
10. Question
The retainer of rubber dam should have:
- A Four Points Of Contact Two Buccally And Two Lingually Without Rocking.
- B Four Points Of Contact Two Buccally And Two Lingually Above The Height Of Contour.
- C Four Points Of Contact Two Mesially And Two Distally.
- D Four Points Of Contact Two Buccally And Two Lingually Below The Height Of Contour.
Correct
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Question 11 of 25
11. Question
Which of the following is a rigid dental impression material?
- A Alginate
- B Condensation Silicone
- C Polysulfide
- D Zinc Oxide Eugenol
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Question 12 of 25
12. Question
The reverse curve on the buccal of class II amalgam tooth preparation must have a cavosurface margin of:
- A 30 Degrees
- B 45 Degrees
- C 90 Degrees
- D 120 Degrees
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Question 13 of 25
13. Question
Which of the following is true regarding the use of pins to retain restorations?
- A They Aid In Improving The Structural Durability Of The Restoration.
- B They Must Not Be Used In Teeth With Extensive Caries Or Fracture.
- C The Length Of The Pin Must Be Equal In Both The Tooth And The Restoration.
- D The Greater The Length Of The Pin Embedded In The Tooth, The Better.
Correct
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Question 14 of 25
14. Question
According to the functional waxing technique by EV Payne, when doing wax patterns for FPD, which of the following is done last?
- A Location Of Functional And Non-Functional Cusps
- B Addition Of Marginal And Axial Ridges
- C Finishing Of Margins
- D Checking Of Occlusal Contacts
Correct
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Question 15 of 25
15. Question
In FPD wax patterns, Stuart’s groove is an extra groove placed on which tooth?
- A Maxillary First Molar
- B Maxillary Second Molar
- C Mandibular First Molar
- D Mandibular Second Molar
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Question 16 of 25
16. Question
What is the optimal degree of the crown taper during tooth preparation for FPD?
- A 2º
- B 4º
- C 6º
- D 12º
Correct
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Question 17 of 25
17. Question
What is the function of a PKT 5 waxing instrument?
- A Refines The Ridges And Grooves
- B Smoothens The Axial Surfaces
- C Smoothens The Developmental And Supplemental Grooves
- D Eliminates Voids On The Occlusal Surfaces
Correct
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Question 18 of 25
18. Question
The strength of adhesive bonding to the dentin of primary teeth is around:
- A 20 MPa
- B 25 MPa
- C 30 MPa
- D 35 MPa
Correct
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Question 19 of 25
19. Question
While cementing the ceramic veneer int the patients mouth, what is the first step that should be followed?
- A Etch Enamel And Dentine
- B Apply Coupling Agent
- C Etch The Restoration
- D Apply Cement On The Restoration And Cement It
Correct
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Question 20 of 25
20. Question
Clamp used for first primary molar is?
- A 2A
- B 3A
- C 14
- D 14A
Correct
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Question 21 of 25
21. Question
Which liner should be usd in a deep composite class V restoration
- A Calcium Hydroxide
- B Gic
- C Mgic
- D Copalite
Correct
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Question 22 of 25
22. Question
In establishing centric contacts for fixed restorations and prosthesis, surface to surface contact is preferred. This type of contact is the least stressful and produces no lateral interference.
- A Only The First Statement Is True.
- B Only The Second Statement Is True.
- C Both Statements Are True.
- D Both Statements Are False.
Correct
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Question 23 of 25
23. Question
The setting expansion of the casting investment material is approximately:
- A 0.1-0.2%
- B 0.1-0.5%
- C 0.8-1.0%
- D 1.1-1.7%
Correct
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Question 24 of 25
24. Question
What is the correct water to powder ratio when mixing dental plaster?
- A 30ml To 50g
- B 40ml To 50g
- C 50ml To 100g
- D 60ml To 150g
Correct
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Question 25 of 25
25. Question
The retention form of an overly-tapered tooth preparation can be improved by adding grooves. These grooves will aid in increasing the paths of insertion and withdrawal of the restoration.
- A Only The First Statement Is True.
- B Only The Second Statement Is True.
- C Both Statements Are True.
- D Both Statements Are False.
Correct
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