1. The hypercalcification lines that separate lamellae of cellular cementum from that of acellular cementum are known as Lines of retzius none ofThe above Incremental lines Perikymata 2. The periodontal ligament is constantly remodeled due to the activity of macrophages. fibroblasts. osteoclasts. mesenchymal cells. 3. The type of bone present in the labial anterior teeth is Cortical Osteophytic Cancellous Exophytic 4. Which of the following marker is absent in orthokeratinised area in oral mucosa? K11 K12 K19 K10 5. MMPs most commonly associated with acute periodontitis is MMP-2 MMP-4 MMP-1 MMP-3 6. what is the thickness of cemento-dentinal junction 4-5um 1-2um 2-3um 3-4um 7. Which of the following is the main mineral source for subgingival calculus Gingival fluid which resemble serum Saliva None of the above Gingival fluid which resembles plasma 8. Which sign or symptom is most common with a periodontal abscess Sinus tract in mucosa Vital tooth Severe throbbing pain Deep caries 9. the most degenerative changes taking place in the periodontal pocket are in the lateral wall of the pocket junctional epithelium cementoenamel junction root surface 10. Which of the following are antigen-presenting cells? Neutrophils Macrophages Plasma cells T-lymphocytes 11. Keratins that are characteristic of highly proliferative epithelia K 6 K 5 K 14 K 10 12. Which of the following PDL fibres prevent extrusion of tooth Oblique fibres Horizontal fibres alveolar crest fibres Transseptal fibres 13. Necrotizing ulcerative gingivitis (NUG) and acute herpetic gingivostomatitis can be differentiated clinically by (the) location of the lesions. lymphadenopathy. pain. temperature of the patient. 14. Prevotella intermedia increases significantly in pregnancy gingivitis because of increased colonization of shallow pockets. gingival blood vessels with increased inflammation. levels of plaque fluid in deep periodontal pockets. steroid hormones act as growth factors. 15. Which of the following is a secondary colonizer: Actinomyces Staphylococcus Campylobacter Streptococcus 16. The Nonspecific plaque hypothesis was delineated by: Robert Koch Schroeder HE Walter Loeshe Sigmund Socransky 17. the most dominant microorganisms in root surface caries is fusobacterium nucleates streptococcus sanguis actinomyces viscosus staphylococcus 18. which of the following crystal forms occur in greater amounts in supraginigval calculus hydroxyapatite and octacalcium phosphate brushite and magnesium whitlockite hydroxyapatite and magnesium whitlockite octacalcium phosphate and brushite 19. a black line on the gingiva which follows the contour of the margin is due to lead iron argyria mercury 20. which probe is used to detect the furcation involvement nabers probe periodontal probe florida probe probe no 11 Loading … Question 1 of 20
