1. maintainance of adequate oral hygiene by a patient will not be complicated by the presence of open contacts interdental calculus deposits fixed bridges orthodontic bands and brackets 2. daily cleaning of the root surfaces by a patient will cause allow remineralisation of the root surface gingivitis root sensitivity stimulate epithelial attachment 3. Keratins that are characteristic of highly proliferative epithelia K 14 K 10 K 5 K 6 4. how many osseous walls are present in one walled vertical defects three wall present four wall present two wall present one wall present 5. the content of the following increases with the depth of periodontal pockets potassium phosphate calcium sodium 6. Which of the following is most susceptible to gingival breakdown Gingival sulcus Interdental col Interdental papilla Free gingiva 7. Anti Bone-Resorption factor is Leukotrienes Bisphosphonates Cytokines Prostaglandin 8. which radiographic technique gives three dimensional view of the alveolar bony defects digital intraoral radiograph spiral computed tomography intra oral radiograph orthopantamograph 9. If the periodontal index score is between 0.7 and 1.9 it means that the periodontal disease is Absent Irreversible Reversible Treated 10. an epidemiological index with a true biological gradient is simplified oral hygiene index-green and vermilion periodontal index-Ramfjord PMA index-Schour and maseler periodontal index-russel 11. Indifferent fibres are none of the above elastic fibres oxytalan fibres collagen fibres 12. Inadequate margins of restorations should be corrected primarily because they Create mechanical irritation Interfere with plaque removal Release toxic substances Cause occlusal disharmony 13. Which of the following root surfaces have concavities that make root planing difficult? Lingual of mandibular first premolars. Mesial of maxillary first premolars. Distal of the palatal roots of maxillary molars Mesial of maxillary incisors. 14. The type of bone pressent in the interdental area is Exophytic Cortical Cancellous Osteophytic 15. What will be the radiographic feature of chronic gingivitis Wedge shaped bone loss Normal bone pattern horizontal bone loss Vertical bone loss 16. a black line on the gingiva which follows the contour of the margin is due to iron mercury argyria lead 17. Which salivary enzyme inhibits A. Actinomcetamcomitans lactoperoxidase lactoferrin myeloperoxidase lysozyme 18. Micro-organisms are able to damage immunoglobulins produced by host through Protease Hyaluronidase Catalase Collagenase 19. following scaling a patient notices hard black deposits this may be due to shrinkage of gingiva blood clot formation on tooth surface poor home care patient is heavy tea drinker 20. Bacteria in a biofilm communicate with each other.This phenomenon is called Corncob formation Coaggregation Transformation Quorum sensing Loading … Question 1 of 20