1. Modes of attachment of calculus to the tooth surface include all of the following, EXCEPTAttachment by means of an inorganic pellicleClose adaptation to unaltered cementumMechanical locking into surface irregularitiesPenetration of calculus bacteria into cementumQuestion 1 of 20 2. The most prevalent inflammatory cells found in gingival tissue 24 hours following flap surgery aremacrophages.monocytes.polymorphonuclear leukocytesLymphocytesQuestion 2 of 20 3. Hand instruments are preferred to rotary instruments inflattening interproximal boneradicular blendingvertical groovinggradualising marginal boneQuestion 3 of 20 4. ramping can be done for aone wall defectfour wall defecttwo wall defectthree wall defectQuestion 4 of 20 5. Which of the following medications often result in overgrowth of gingival tissues?Ampicillin, tetracycline, and erythromycinCalcium channel blockers, phenytoin, and cyclosporinePenicillin, calcium channel blockers, phenytoin .Cyclosporin, penicillin, and cephalosporinsQuestion 5 of 20 6. embrassure characterised by the slight to moderate recession of interdental papillae aretype IIItype IItype Itype IVQuestion 6 of 20 7. Which of the following has been used to induce root surface biocompatibility and enhance cellular response?all of the aboveTetracyclineLamininFibronectinQuestion 7 of 20 8. subgingival temperature is lower insmokers than nonsmokersnone of the aboveacute gingivitis than chronic gingivitisperiodontitis than periodontosisQuestion 8 of 20 9. Chlorhexidine chip degrades in15-20 days12-15 days7-10 days1 monthQuestion 9 of 20 10. Gold Standard to detect Halitosis isOrganoleptic AnalysisHalimeterGas ChromatographyElectronic NoseQuestion 10 of 20 11. Bisbiguanides are what generation of antiplaque agents2nd generations1st generations4th generation3rd generationQuestion 11 of 20 12. Most potent virulence factor of P.ginigivalis isCollagenaseHemagglutinaseGingipainsLipopolysaccharidesQuestion 12 of 20 13. What is the primary source of elevated collagenolytic activity in chronic periodontitis?Neutrophils.Macrophages.P. intermediaP. gingivalis.Question 13 of 20 14. Defects in which inflammatory cell have most frequently been associated with periodontal disease?The plasma cellThe neutrophilThe mast cellThe T-lymphocyteQuestion 14 of 20 15. During periodontal disease activity, the loss of clinical attachmentnone of the aboveis concomitant with alveolar bone loss. precedes alveolar bone loss.follows alveolar bone loss.Question 15 of 20 16. Junctional epitheliumIs permeableLines the gingival sulcusIs attached to enamel by desmosomesIs derived initially from the outer enamel epitheliumQuestion 16 of 20 17. Critical zones in pocket surgery include all of the following exceptThe tooth surface wallThe attached gingivaThe boneThe soft tissue wallQuestion 17 of 20 18. The following periodontal fibres are most resistant to periodontitsTransgingivalTransseptalIntergingivalCircularQuestion 18 of 20 19. An apically repositioned flapIs the procedure of choice for palatal pocketsDoes not preserve the attached gingivaDoes not increase the length of clinical crownIs a pocket elimination procedureQuestion 19 of 20 20. Bacteria in a biofilm communicate with each other.This phenomenon is calledCoaggregationTransformationQuorum sensingCorncob formationQuestion 20 of 20 Loading...
