NALANDA OPEN UNIVERSITY
Annual Examination, 2017
Certificate in Dental and Oral Hygiene (CDOH)
PAPER-III
(Sterilization and Dental Rediography)
Time 3 Hours. Full Marks 80
Answer any Eight Questions. All questions carry equal marks.
1. Describe in detail how you clean and sterilizethe dental instruments before operation.
2. What are the procedures for cleansing room technique?
3. Discuss the criteria for diagnostic quality radiography.
4. Discuss the different types of accessories used in dental X-ray.
5. What do you mean by R.V.G.? How it is superior to conventional X-ray?
6. Discuss the process of Chemical Vapour Sterilization.
7. Describe about PPF and treatment room preparation procedure.
8. Write short notes
Antiseptics
Class bead sterilizer.
9. What are critical, semi critical and non-critical items in dentistry?
10. What steps can be taken for laboratory disinfection?