August 2012 Conservative Dentistry and Endodontics Past Questions

[LB 672]                                       AUGUST 2012                              Sub. Code:
4164 FOURTH YEAR B.D.S. DEGREE EXAM
PAPER – IV CONSERVATIVE DENTISRY & ENDODONTICS
Q .P .Code: 544164
Time : 180 Minutes                                                                  Maximum : 100
marks Answer ALL questions in the same order.
I. Elaborate on:   (2*20=40)                                                             


1. Ellis classification of traumatic Injuries. Write in detail about storage medium and management of avulsed tooth.     

2. Classification, etiology and management non-carious lesion and disfiguration of teeth.                                                     

II. Write notes on:  (12*5=60)
1. Gingival marginal trimmer.                                                     
2. High copper amalgam.                                   
3. Endodontic microbiology.                             
4. Mineral trioxide aggregate.                           
5. Rubber dam.                                                   
6. Dental mercury hygiene recommendation.         
7. Internal resorption.                                                           
8. Wedges and types of wedging.                                     
9. Dentin bonding agents.                                         
10. Glass ionomer cement.                                     
11. Dental operating microscopes.                         
12. Factor Influencing healing after endodontic treatment.           

*******

Conservative Dentistry and Endodontics Past Questions

Click on the respective year below to view the Past questions.

# FEB 2012 Conservative Dentistry and Endodontics Past Questions

# August 2012 Conservative Dentistry and Endodontics past Questions

# February 2013 Conservative Dentistry and Endodontics Past Questions

# August 2013 Conservative Dentistry and Endodontics past Questions

# February 2014 Conservative Dentistry and Endodontics Past Questions

# August 2014 Conservative Dentistry and Endodontics Past Questions

# February 2015 Conservative Dentistry and Endodontics Past Questions

# August 2015 Conservative Dentistry and Endodontics Past Questions

# February 2016 Conservative Dentistry and Endodontics Past Questions

Feb 2012 Conservative Dentistry and Endodontics Past Questions

FEB 2012   [LA 672]                                                                                  Sub.  Code: 4164
FOURTH B.D.S DEGREE EXAMINATION
PAPER IV CONSERVATIVE DENTISTRY AND ENDODONTICS
Q .P .Code: 544164

Time: Three hours                                                        Maximum: 70 Marks
Answer ALL questions in the same order Draw Suitable diagrams wherever necessary
I.  Elaborate on:                                                                           
(2×10=20)

1. Discuss in detail the materials and various steps involved in placing a composite resin restoration for a mesio – incisally fractured upper central incisor.

2. Define Working Length. Write in detail one method of working length determination. Discuss about  Stepback method of preparation of root canal.
II. Write notes on:                                                                       
(10×5=50)
1. Attrition, Abrasion and Erosion
2. Inlay wax pattern
3. Instrument grasps
4. Hypersensitivity
5. Shade matching for ceramics
6. High copper amalgam
7. Culture methods and reversal
8. Endosonics
9. Rationale of endodontic treatment
10. Post endodontic restoration
*******

Fracture of RCT treated tooth

# Which of the following accounts for why endodontically treated posterior teeth are more susceptible to fracture than untreated ones?
A. Loss of moisture
B. Damaged coronal structure
C. Plastic deformation of the dentin
D. Loss of pulpal vitality

The correct answer is B. DAMAGED CORONAL STRUCTURE

Endodontically treated teeth have a decreased amount of coronal dentin due to the access preparation necessary for root canal treatment.

Loss of coronal dentin alters the internal architecture of the tooth, changing the dispersement of forces in the tooth.

The change to the internal architecture put the tooth at higher risk for fracture.