KATHMANDU UNIVERSITY, BDS Final Year, Conservative Dentistry and Endodontics 25th Aug 2021 Past Questions

University Examination
August/ September 2021

Level: BDS                                                                         Subject: Conservative Dentistry and Endodontics
Exam: Final BDS (New course)

Time: 2 hrs. 30 minutes                                                                                              Full Marks: 50 marks
Date August 25, 2021

  • Answer each section in a separate answer book
  • Write brief, relevant and legible answers
  • Illustrate your answer with well labelled diagrams wherever required.
  • All questions are compulsory.
Section ' B' 
[25 marks]
1. Define dentin hypersensitivity. Explain in detail the causes and treatments of dentin hypersensitivity.[1+2+2=5]
2. A 27-years-old female patient reported to the Department of Conservative Dentistry with chief complaint of sensitivity of upper left back tooth. The teeth were free from caries. There was a sharp notch on the cervical region of 24. Further clinical examination revealed abnormal occlusal inter relation between the maxillary and mandibular teeth [1 + 2 + 3 = 6]
- What is the Diagnosis?
- Write the mechanisms of formation of such lesions.
- Write about considerations for restorative management of non-carious lesions.

3 What are the various methods of isolation? Write down the perceived advantages and disadvantages of Rubber dam in isolation. [2 + 3 = 5]

4 Write short notes on: [3*3=9]
a Role of Remaining Dentin thickness in restorative procedures
b. Tertiary dentin
c. Retraction cords

Section " C"
[25 marks]
5. A patient came with serve pain and mobility of his lower first molar since few days. The patient had a history of pain a few years back for which root canal treatment was initiated but discontinued after the first visit. IOPA radiograph shows coronal radiolucency continuous with pulp chamber and periapical radiolucency too. 
A. Classify periapical diseases. [3]
B. What is your periapical diagnosis for above condition? [1]
C. Write the treatment plan.[2]

6. Define and classify tooth luxation. Write in detail about extrusive luxation injuries. [1 + 1 + 3 = 5]

7. Classify obturation techniques. Write in detail about cold lateral compaction technique. Write its limitations.  [1 + 4 + 1 = 5]

8. Write short note on: [3x3 = 9] 
a. Internal Resorption.
b. Goals of access cavity preparation.
c. Root canal working width


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