Prevalence vs incidence

# For a given population, the number of disease cases are divided by the total number of people. Which of the following rates were calculated?
A. Odds ratio
B. Prevalence
C. Incidence
D. Specificity

The prevalence of a condition describes the proportion of a population who have acquired a condition.

Prevalence proportion is computed by comparing the total number of people affected with a condition against the overall number of people being studied. The result is usually written as a percentage, fraction, or by noting the number of known cases per 10,000 people or 100,000 people.

Incidence describes the number of new cases that occurred in a given population within a certain period.

February 2016 Conservative Dentistry and Endodontics past Questions

[LI 672]                                          FEBRUARY 2016                             Sub.
Code: 4164
FOURTH YEAR B.D.S. DEGREE EXAMINATION
PAPER IV – CONSERVATIVE DENTISTRY AND ENDODONTICS
Q.P. Code : 544164
Time : Three Hours                                                                         Maximum
: 70 Marks
Answer All Questions
I. Elaborate on:                                                                                   
             (2 x 10 = 20)
1. Classify dental amalgam. Write in detail about techniques for amalgam restoration fabrication.
2. Ellis classification of traumatic injuries. Write in detail about storage medium and management
of avulsed tooth.

II. Write Notes on:                                                                               
           (10 x 5 = 50)
1. Irrigants in endodontics.
2. Rubber dam.
3. Dental operating microscope.
4. High copper silver amalgam.
5. Glass ionomer cement.
6. Prefabricated post system.
7. Endodontic microbiology.
8. Factors influencing healing after endodontic treatment.
9. Gingival marginal trimmer.
10. Gutta percha.
*******

August 2015 - Conservative Dentistry and Endodontics past Questions

[LH 672]                                          AUGUST 2015                                 Sub.
Code: 4164
FOURTH YEAR B.D.S. DEGREE EXAMINATION
PAPER IV – CONSERVATIVE DENTISTRY AND ENDODONTICS
Q.P. Code: 544164
Time : Three Hours                                                                         Maximum
: 70 marks
Answer All Questions
I. Elaborate on:                                                                                 
             (2 x 10 = 20)
1. Discuss in detail about classification II mesio occlusal in lay cavity preparation for lower
right first molar. Add a note on cast metal restorations giving their indications advantages and
disadvantages.
2. Write about classification of endodontic instruments. Enumerate methods of working length
determination with a brief note on apex locations.
II. Write notes on :                                                                             
           (10 x 5 = 50)
1. Tarnish and corrosion.

2. Castable ceramics.

3. Mat Gold.

4. Direct Vaniers.

5. Types and uses of Wedges.

6. Chlorhexidine uses.

7. Replacement Resorption.
8. Mishaps in cleaning and shaping.

9. Access cavity for upper central incisor.

10. Thermoplastized Gutta percha.
*******

February 2015 Conservative Dentistry and Endodontics Past Questions

[LG 672]                                  FEBRUARY 2015                     Sub. Code: 4164

FOURTH YEAR B.D.S. DEGREE EXAM
PAPER IV - CONSERVATIVE DENTISTRY AND ENDODONTICS
Q.P Code: 544164
Time: 180 Minutes                                                                Maximum: 70 Marks

I. Elaborate on:                                                                                 
(2 x 10 = 20)

1.  Define dentin hypersensitivity. Discuss the cause, mechanism and management of dentin
hypersensitivity.

2.  Define working length in endodontics. Enumerate the methods to determine working length.
Discuss in detail Apex locators.

II. Write Notes on:                                                                             (10
x 5 = 50)

1.  Design of a dental bur.
2.  Smear layer.
3.  Matricing for direct tooth colored restorations.
4.  Home bleaching techniques.
5.  Trituration.
6.  Pulpitis.
7.  Gutta percha chemistry, composition and uses.
8.  Pulpotomy.
9.  Root canal irrigants.
10. Avulsed tooth and its management.
*******

August 2014 Conservative Dentistry and Endodontics Past Questions

[LF 672]                                      AUGUST  2014                       Sub. Code: 4164

FOURTH YEAR B.D.S. DEGREE EXAM
PAPER IV - CONSERVATIVE DENTISTRY & ENDODONTICS
Q.P Code: 544164
Time: 180 minutes                                                              Maximum: 70 marks

I.  Elaborate on:                                                                                 
(2X10=20)

1.  Define bleaching. Enumerate the materials used and various techniques of bleaching. Describe in
detail night guard bleaching technique.

2.  Define obturation. Enumerate the materials used and various techniques of obturation. Describe
in detail warm vertical condensation technique.

II. Write Notes on:                                                                             
(10X5=50)
1.   Demineralization-Remineralization cycle
2.  Instrument formula for hand cutting instruments
3.  Hybrid layer
4.  Wedging techniques
5. Compare and contrast tooth preparation for silver amalgam versus composite restoration
6.  Phoenix abscess
7.  Resin based endodontic sealers
8.  Standardization of a K-file endodontic instrument
9.  Apexification
10. Root end filling materials
******

February 2014 Conservative Dentistry and Endodontics Past Questions

[LE 672]                            FEBRUARY 2014                        Sub. Code:4164

FOURTH YEAR B.D.S. DEGREE EXAM
PAPER IV - CONSERVATIVE DENTISTRY & ENDODONTICS
Q.P Code: 544164

Time: 180 minutes                                                         Maximum: 70 marks


I. Elaborate on:                                                                           
(2X10=20)

1.  Classify Pins used in Pin retained amalgam restorations. Write in detail about Self threaded
pins.

2.  Enumerate different techniques of cleaning and shaping of the root canal using hand
instruments. Describe step back technique in detail.

II. Write Notes on:                                                                       
(10X5=50)
1.  Management of Tooth Avulsion
2.  Mineral trioxide aggregate
3.  Direct pulp capping
4.  Wedges and wedging techniques
5.  Internal Resorption
6.  Biocompatibility of Glass lonomer Cements
7.  Walking Bleach
8.  Sodium Hypochlorite
9.  Hemisection of teeth
10. Microfilled Composites
*******

August 2013 - Conservative Dentistry and Endodontics Past Questions

[LD 672]                                      AUGUST 2013                              Sub. Code:
4164 FOURTH YEAR B.D.S. DEGREE EXAM
PAPER – IV CONSERVATIVE DENTISRY & ENDODONTICS
Q .P .Code: 544164
Time: 180 Minutes                                                        Maximum: 70 Marks

I. Elaborate on:                                                                        (2x10=20)

1. Define obturation, discuss about time of obturation and lateral condensation technique.

2. Classify traumatic injuries and discuss in detail about complicated crown / root fractures with
pulp exposure.

II. Write notes on:                                                                   (10x5=50)
1. Smear layer.
2. Glassionomer cements.
3. Sterilization of instruments.
4. High gold alloys.
5. Bevells in tooth preparation.
6. Pin Retained Amalgam.
7. Standardization of hand instruments.
8. Castable ceramics.
9. Protaper.
10. Instrument grasps.
*****