1. The activity of collagen degrading enzymes in the saliva is inhibited by all of the above TIMP(tissue inhibitor of matrix metalloproteinase) Cathepsins antileucoprotease 2. ANUG is caused by: A actinomycetemcomitans P. intermedia Spirochaetes P. Gingivalis 3. Mechanisms involved in enamel pellicle formation include all of the following, EXCEPT: Van der Waals forces Hydrophilic forces Electrostatic mechanisms Hydrophobic forces 4. Which of the following is the main mineral source for subgingival calculus Gingival fluid which resembles plasma None of the above Saliva Gingival fluid which resemble serum 5. Indications for crown lengthening include the following except: Furcation involvement Delayed passive eruption Esthetics Crown fracture 6. Necrotizing ulcerative gingivitis (NUG) and acute herpetic gingivostomatitis can be differentiated clinically by (the) temperature of the patient. location of the lesions. lymphadenopathy. pain. 7. The keratinising potential of which of the following does not change with age Cheeks Lips Hard palate Attached gingiva 8. which type of gingival enlargement is seen in puberty interdental gingiva marginal gingiva and attached gingiva all are enlarged both marginal gingiva and attached gingiva are enlarged interdental papillae and facial gingiva both are enlarged interdental papillae appear bulbous but facial gingiva is not affected 9. Age changes associated with the PDL include all of the following, EXCEPT: Reduction in organic matrix production Reduction in elastic fibers Decrease in number of fibroblasts Decreased epithelial cell rests 10. Which sign or symptom is most common with a periodontal abscess Severe throbbing pain Vital tooth Deep caries Sinus tract in mucosa 11. Which of the following is NOT a risk factor for periodontitis? Poor oral hygiene . Smoking tobacco. Poorly controlled diabetes. Coronary heart disease. 12. Trauma from occlusion may be diagnosed radiographically by the presence of narrowing of the periodontal ligament space cemental tears. horizontal bone loss. widening of the periodontal ligament space. 13. Regeneration leads to the formation of which layer of cementum Acellular afibrillar cementum cellular mixed cementum Acellular extrinsic fiber cementum cellular intrinsic fibre cementum 14. Width of attached gingiva is least on Mandibular CI Maxillary 1st premolar Mandibular 1st premolar Maxillary CI 15. Which of the following is not an etiological agent for gingival recession Gingival inflammation Gingival ablation Gingival abrasion TFO 16. Apical migration of the epithelial attachment with corresponding recession of the marginal gingiva results in Infrabony pocket formation Gingival pocket formation A shallow sulcus Periodontal pocket formation 17. Sulcular epithelium is Non- permeable All options are wrong Highly permeable Semipermeable 18. sulcular epithelium can be penetrated by substances with a molecular weight upto two million ten million one million three million 19. Which of the following are not involved in early colonisation of plaque Strep mitis Strep intermedius Strep Gordonii Strep Conestellatus 20. what is the thickness of cemento-dentinal junction 1-2um 3-4um 4-5um 2-3um Loading … Question 1 of 20
