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Conservative Dentistry and Endodontics Past Questions

CONSERVATIVE DENTISTRY AND ENDODONTICS PAST QUESTIONS

NOTE: These are real exam questions from BPKIHS, Dharan Nepal compiled by students and handed over juniors throughout the history. In fact these are generational gems to students. If you find any mistakes, suggest corrections and help make it errorfree. Don't be mean, share with your fellow mates too. Because, you are having access to it here because someone cared to collect these and share for you people. So, Thank the friend who shared this to you and, share with 3 of your best friends. Pay-It-Forward. :)

1. What are the principles of cavity design?
2. What do you mean by cavity varnish and liner? List their important functions.
3. Define creep. Significance. List the factors affecting it.
4. What is tarnish and corrosion? Classify corrosion. Write down the management of protection from corrosion.
5. Writhe the composition of composite resin. What are the different types of fillers used?
6. List the various procedures for preserving the pulp. Explain any one.

7. A patient came in dental OPD with pain in 11. O/E, the tooth was discolored.
a. What are the causes of pulp disease?
b. List the causes of tooth discoloration.

RCT was to be done.
c. Write the procedure for the sterilization of the instruments required in RCT with specifications.

8. Write the classification of periradicular tissue diseases.

9. A patient came with sensitivity on his teeth. O/E, cervical abrasion wrt 12,13,14,23,24,25,33,34,35,43,44,45 was found. He needed restoration. i) What are the different directly filled restoration that can be done? ii) Which one will you prefer? iii) Write down the composition of what u have chosen. Iv) Explain the procedure stepwise you perform. V) List the advantages of this material.

10. Pulp polyp features.
11. Granuloma.
12. Bases and liners? Pulp protection?
13. Indications of ZOE/PolyF
14. Types of GIC, indication.
15. Classification of cements and uses.
16. Requirements of disinfectants and name.
17. Hydrodynamic theory of dentinal hypersensitivity.
18. D/D of reversible and irreversible pulpitis.
19. What is walking bleach, and steps of the procedure?
20. Composition of light cure composite


21. Advantages n disadvantages of the light-cure composite.
22. Discuss GIC as a restorative material.
23. Bacterial flora of root canal.
24. Steps of working length determination.
25. Requirements of irrigants and name.
26. Discuss NaOHCl as irrigant.
27. Sandwich technique.

28. SN: 2o caries, matrices.
29. Hybrid composite ……….. (6)
30. Metal modified GIC
31. Factors affecting the strength of amalgam.
32. Advantages of copper containing amalgam.
33. How to prevent corrosion?
34. Rules for BMP.
35. Methods of canal preparation.
36. Step-back technique n advantages.
37. Importance of varnish and liners, components.
38. Indications of periradicular surgery.
39. Properties of root canal cements. Name some.
40. Step by step, the process of lateral condensation.
41. Eames technique, adv. Adv of spheroidal over lathecut.
42. Biocompatible properties of ZnPo4 compared to PolyF
43. Objectives of root canal irrigation. Name some root canal irrigants.
44. Classification of composite resins.
45. I/CI of endodontic theory.
46. Enumerate methods of sterilization. SN: hot salt sterilizer.
47. SN: microfilled composite.
48. SN: indirect pulp capping. Diagram.
49. Mode of pulpal necrosis.
50. Rules for instrumentation.
51. Classification of instruments for RCT. SN: Instrument standardization.
52. Enumerate different obturation techniques. Explain one.
53. Bleeding/Bleaching of nonvital tooth.
54. SN: Apexification, pulp vitality test, phoenix abscess, irrigation, rubber dam and matrices, cast metal restoration.
55. Steps in BMP.
56. Explain lateral condensation.
57. Ideal properties of intracanal medicaments.
58. I/CI of endodontic surgery.
59. Causes of tooth discolouration.
60. Classify pulpal and periapical disease.
61. Procedure involved in Mx of pulp.
62. What are pulp irritants ? Bases, liners.
63. Importance of varnish, composition.
64. Rules for cleaning and shaping of RC.
65. Describe referred pain irt pulpitis.
66. Define apicoectomy. I/CI of it.
67. Black’s formula for instrument numbering with diagram.
68. Different materials containing F-. Uses of F-.
69. Chemical vs light cure composite.
70. Caused of endo failure.
71. Mechanical amalgamation.
72. Etiopathogenesis and classification dental caries.
73. Periodontal/periapical abscess: D/D, Investigation, T/t.
74. Ellis fracture II, III of an anterior tooth. : materials used, merit and demerit of material, the procedure for restoration, the composition of the composite, the filler used, the type used in posterior teeth.
75. Fractured Class II amalgam restoration with pain and sensitivity: classify amalgam, causes of #ed restoration, which material for this case, composition, and advantages.
76. Amalgam: factors affecting strength, delayed expansion, adv/disadv, classify dental silver alloy.
77. Root Canal Treatment: Indications/Contraindications, stepwise pulpectomy, step-back method and advantages, reversible vs irreversible pulpitis.
78. Techniques of obturation.

BPKIHS Dental Past Questions

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# Conservative Dentistry and Endodontics Past Questions


# 9th SEMESTER, 2019 FEB CONSERVATIVE DENTISTRY AND ENDODONTICS - SAQs and MEQs

#MCQ 19 - Selective Pressure Impression Technique is indicated in:

#MCQ 19 - Selective Pressure Impression Technique is indicated in:
A. Firm healthy Mucosal covering over the ridge
B. Flabby ridges
C. Knife edge with movable mucosa
D. When sharp bony spicules are present in the ridge

Ans: A. Firm healthy mucosal covering over the ridge

Mucostatic Impression Technique is indicated for options B,C and D.


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#MCQ 18 - The main Purpose of covering the retromolar pad area is:

#MCQ 18 - The main Purpose of covering the retromolar pad area is:
A. Stability
B. Retention
C. Support
D. Contraction

Ans: B. Retention
Retromolar pad:
- gives the peripheral seal of a lower denture
- gives distal extension limit
- gives the height of the occlusal plane
- relieving area since it contains three muscles and aids the stability of the denture

Though retromolar pad provides stability, support and retention, the main objective of covering it is retention.

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#MCQ 17 - Passive Impression Technique Involves:

#MCQ 17 - Passive Impression Technique Involves:
A. Impression with silicone
B. Impression compound
C. Impression Plaster
D. Alginate

Answer: C. Impression Plaster

Passive impression / Mucostatic Impression / Pressureless Impression technique records the tissues with minimal distortion and cause least possible displacement of tissues. There will be large amount of space between the tray and soft tissues and it uses very fluid type of impression material. 
Impression material is the common material used in this technique. 

#MCQ 16 - The amount of water needed to dissolve alpha and beta hemihydrate to react completely with 100 gram of calcium sulphate hemihydrates to convert it to calcium sulphate dihydrate is:

#MCQ 16 - The amount of water needed to dissolve alpha and beta hemihydrate to react completely with 100 gram of calcium sulphate hemihydrates to convert it to calcium sulphate dihydrate is:

A. 18.6 ml
B. 22.2 ml
C. 30.4 ml
D. 45.3 ml

Answer: A. 18.6 ml

Water of reaction is same for all gypsum products i.e. 18.6 ml of water completely reacts with 100g of hemihydrate. But gauging water differs with the type of gypsum product. It is 45 ml for type III and 20 ml for type IV gypsum.

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30. The daily requirement of vitamin B12 is: 
#29. Soldering and welding is not possible in:

#28  Which of the following tumors is most aggressive? (AIPG 91, AIIMS 2004)
A. Ameloblastoma
B. Odontogenic Myxoma
C. Odontoma
D. Fibrocarcinoma

#27 Width of attached gingiva:
A. Decreases with age
B. Increases with age
C. Remains the same
D. Is not age-related

#26  Buccal surface of posterior teeth are wider than lingual surface mesiodistally except in:
a) Maxillary second premolar
b) Mandibular second premolar
c) Maxillary first molar
d) Mandibular first molar

#MCQ 25- The best method to prevent initiation of caries in a four year old child who has no accessibility to community water fluoridation is:
A. Brushing and flossing
B. 2.2 % NaF Tablet daily
C. 0.05% NaF Mouthwash daily
D. 0.5% NaF toothpaste daily

#MCQ 24 : Dental Stone and Dental Plaster both have a slightly different type of principal component (Calcium sulfate hemihydrate). Dental Plaster has:
A. Beta-hemihydrate and dental stone has gamma hemihydrate
B. Alpha hemihydrate and dental stone has beta hemihydrate
C. Gamma hemihydrate and dental stone has beta hemihydrate
D. Beta hemihydrate and dental stone has alpha hemihydrate

# 23: The tobacco preparation mainly used to clean the tooth is:
A. Dhumti
B. Mishri
C. Khaini
D. Mawa

#22 : Screening for oral cancer comes under which level of prevention?
A. Primary Prevention
B. Secondary Prevention
C. Tertiary prevention
D. Primordial prevention

#21- During the Master cone fitting procedure in the endodontic treatment of a patient's tooth, the patient says he has a "sharp shooting pain in the same tooth that ached earlier". What should be your response and why?

A. Continue with obturation, the anesthetic is simply wearing off
B. Continue with obturation, this is a normal complaint during this part of the procedure
C. Consider looking for an accessory canal and re-filing, there is likely pulpal tissue that has not been properly debrided
D. Irrigate further, the Sodium Hypochlorite should take care of this problem
E. Temporize the tooth and obturate at a later date

#20 - Gingival Extension for a restoration should be:
A. At the gingival crest
B. At least 1 mm above the alveolar crest
C. At least 3 mm above the alveolar crest
D. Doesn't have any relation with the alveolar crest height

#19 - Selective Pressure Impression Technique is indicated in:
A. Firm healthy Mucosal covering over the ridge
B. Flabby ridges
C. Knife edge with movable mucosa
D. When sharp bony spicules are present in the ridge

#18 - The main Purpose of covering the retromolar pad area is:
A. Stability
B. Retention
C. Support
D. Contraction

#17 - Passive Impression Technique Involves:
A. Impression with silicone
B. Impression compound
C. Impression Plaster
D. Alginate

#16 - The amount of water needed to dissolve alpha and beta hemihydrate to react completely with 100 gram of calcium sulphate hemihydrates to convert it to calcium sulphate dihydrate is:
A. 18.6 ml
B. 22.2 ml
C. 30.4 ml
D. 45.3 ml

 #15: Diplopia after middle third of face fracture results from entrapment of:
A. Inferior rectus
B. Inferior oblique
C. Lateral rectus
D. Superior oblique

#14: The ideal Treatment for the fracture of the angle of the mandible is:
A. Transosseous wiring
B. Intermaxillary fixation
C. Plating on the lateral side of the body of the mandible
D. Plating at the inferior border of the mandible

#13:  Which of the following is the best treatment plan to control rampant caries (many proximal caries that undermine enamel)?
A. Restore all teeth with amalgam as soon as possible
B. Prescribe high fluoride toothpaste, give oral hygiene instruction, and wait until effectiveness has been appraised
C. Restore all teeth with crowns
D. Remove caries and place glass ionomer restorations then complete the treatment plan after the vitality of the teeth has been established

#12 - Which of the following tooth has the highest endodontic failure rate?
A. Maxillary First Molar
B. Maxillary First Premolar
C. Mandibular First Molar
D. Mandibular Second Premolar

#11  Regarding Electric Pulp Test (EPT) for tooth vitality assessment, all of the following statements are true EXCEPT:
A. The objective is to stimulate a pulpal response by subjecting the tooth to an increasing degree of electric current
B. Any restorations in the tooth or the adjacent gingival tissue should not be contacted with the electrolyte or the electrode
C. The test is always performed on the tooth in question prior to testing on a control tooth
D. Gloves should not be worn while performing EPT because it may cause false negative responses

#10 - In Orthodontics, Porcelain brackets have better esthetics as compared to stainless steel brackets. However, a major disadvantage is:
A. Stains over time
B. Require special debonding agents
C. Removing is difficult and causes enamel cracks
D. Channel microfraction while debonding

#9 Treatment of Ludwig's Angina due to pericoronitis with respect to lower third molar :
A. Incision and Drainage, antibiotics and removal of third molar
B. Intubation prior to surgery
C. Incision and drainage, removal of third molar, antibiotics
D. Tracheostomy should be done before any treatment

#8 A dental surgeon has recovered from Hepatitis B after a three months rest. His Laboratory Findings are Normal but he is not allowed to attend to the patients as per the medical board because he is:
A. Healthy carrier
B. Active carrier
C. Convalescent carrier
D. Paradoxical carrier

#7  Which of the following tests for tooth vitality assessment has the highest diagnostic accuracy?
A. Electric Pulp Test
B. Heat Test
C. Cold Test
D. Anesthetic Test

#6 Maximum use of Computers in the field of Dentistry is in the field of:
A. Periodontology
B. Prosthodontics
C. Community Dentistry
D. Operative Dentistry

#5 First Water Fluoridation was done in:
A. Sweden
B. Canada
C. Michigan (USA)
D. California

#4 Which of the following materials cannot be used as a base under composite restorations?
A. Zinc Phosphate
B. Zinc Polycarboxylate
C. Zinc Oxide Eugenol
D. Glass Ionomer Cement

# 3 Which of the following materials could be used for cementing a bridge as well as restoring a cervical lesion?
A. Glass Ionomer cement
B. Zinc Polycarboxylate
C. Zinc Phosphate
D. Zinc Oxide Eugenol

#2 Gutta Percha is plasticized / softened by:
A. Alcohol
B. Chloroform
C. Eugenol
D. EDTA

#1 The Largest Component of Gutta Percha Cones is:
A. Gutta Percha
B. Zinc Oxide
C. Resins and Waxes
D. Coloring Agents