1. Age changes associated with the PDL include all of the following, EXCEPT:Reduction in elastic fibersDecreased epithelial cell restsReduction in organic matrix productionDecrease in number of fibroblastsQuestion 1 of 20 2. not significant in pathogenicity of perio problemsendotoxins from dead bacteriamicrobial interactionsenzyme by microbesendotoxins from live bacteriaQuestion 2 of 20 3. Lateral pedicle flap is used forVestibular deepeningCurettageIncreasing the width of attached gingivaRecession coverageQuestion 3 of 20 4. Which is the least critical zone of instrumentation during periodontal pocket elimination surgery?Tooth surfacePocket tissue wallRoot surfaceBone in pocket areaQuestion 4 of 20 5. In a free gingival graft the epithelium of the graft becomesnone of the abovepartially necrotic at the superficial keratinising surfacepartially necrotic at the basement membrane areatotally necrotic and is replaced by new tissueQuestion 5 of 20 6. Most potent virulence factor of P.ginigivalis isHemagglutinaseGingipainsCollagenaseLipopolysaccharidesQuestion 6 of 20 7. Necrotizing ulcerative gingivitis (NUG) and acute herpetic gingivostomatitis can be differentiated clinically by (the)location of the lesions.pain.temperature of the patient.lymphadenopathy.Question 7 of 20 8. the pocket epithelium shows a series of histopathological changes.which of the following is true in this regarddegenarative changesproliferative and degenerative changesnecrotic changesproliferative changesQuestion 8 of 20 9. CADIA system is used to checkbleeding sitesprogression of periodontal diseasemobility of teethfurcation involvementQuestion 9 of 20 10. Which is not a goal of scaling and root planing?Eliminating inflammationReducing vertical bone defectsImproving clinical attachmentReducing probing depthsQuestion 10 of 20 11. The instrument best suited for root planing is a/ansickle scalercurette.file.hoe.Question 11 of 20 12. Which of the following is not an example of universal curette?Young-wood #7-8Indiana University # 17-18Mc Call # 13-14Columbia #2R-2LQuestion 12 of 20 13. Direction in which nabers probe is usedHorizontalVertical and horizontalLateralVerticalQuestion 13 of 20 14. PMA index is used to record the status of:Gingival diseaseCarious teethPeriodontal diseaseRoot cariesQuestion 14 of 20 15. What % collagen fibers and fibroblast are present in the gingival connective tissue65% and 10%60% and 10 %65% and 5%60% and 5%Question 15 of 20 16. A conventional gingivectomyWill eliminate infra bony pocketWill eliminate false pocketWill preserve width of attached gingivaFacilitates healing by primary intentionQuestion 16 of 20 17. purulent exudation from the gingival sulci is an indication ofsevere periodontal attachment lossdeep pocketsnature of the inflammatory changes in the pocket wallshallow pocketQuestion 17 of 20 18. Which of the following is not a characteristic of sickle scalersCutting edges meet in a point.Triangular in cross section.Two cutting edges.Rounded back.Question 18 of 20 19. the anatomic crown is shorter than the clinical crown of tooth in which of the followinggingivitisgingival recessionimpactonocclusal wearQuestion 19 of 20 20. The mesial furcation of maxillary permanent first molars is best probed from thenone of the aboveLingualbuccal.buccal or lingual.Question 20 of 20 Loading...