NDEB boards Exam With 100% Correct Answers 2024

The placement of a retentive pin in the proximal regions of posterior teeth would most likely result in periodontal ligament perforation in the - correct answer-mesial of a mandibular first molar Air water spray used as a coolant in high speed - correct answer-will reduce clogging of cutting instruments The proposed mechanism by which a calcium hydroxide preparation initiates secondary dentin formation in direct pulp cappings is by - correct answer-stimulating undifferentiated cells of the tissue to differentiate into odontoblasts when resecting the apical aspect of a tooth during endodontic apical surgery it is appropriate to - correct answer-place an amalgam retrofill For composite resin preparations cavosurface enamel margins are bevelled because - correct answer-a bevelled margin produces a more favorable surface for etching and after etching the bonding ages reduces microleakage what instruments can be used for placing gingival bevels on cast gold inlay preparations - correct answer-margin trimmers and carbide finishing burs What is the most probable postoperative complication of intracoronal bleaching for a tooth that has an inadequate internal seal - correct answer-external root resorption fractured incisal angles in the permanent teeth of adolescent patients are best restored using - correct answer-acid etch composite resin techniques What are the purposes of using occlusal splints - correct answer-to change the pattern and degree of tactile afferent neural impulses, to immobilize teeth and to prevent teeth from disturbing occlusal sensory input histologically a pulp polyp consists of - correct answer-a mass of collagenous fibres, proliferating capillaries, fibroblasts Treatment of primary herpetic gingivostomatitis should include - correct answer-palliative treatment and control of secondary infection Teeth mobility may be due to - correct answer-excessive occlusal force, decreases osseous support and periodontal abscess lichen planus occurs most frequently on the - correct answer-buccal mucosa