NDEB boards EXAM WITH 100% CORRECT ANSWERS

The placement of a retentive pin in the proximal regions of posterior teeth would most likely result in periodontal ligament perforation in the mesial of a mandibular first molar Air water spray used as a coolant in high speed 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 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 place an amalgam retrofill For composite resin preparations cavosurface enamel margins are bevelled because 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 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 external root resorption fractured incisal angles in the permanent teeth of adolescent patients are best restored using acid etch composite resin techniques What are the purposes of using occlusal splints 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 a mass of collagenous fibres, proliferating capillaries, fibroblasts Treatment of primary herpetic gingivostomatitis should include palliative treatment and control of secondary infection Teeth mobility may be due to excessive occlusal force, decreases osseous support and periodontal abscess lichen planus occurs most frequently on the buccal mucosa enlargement of the gingiva described as idiopathic fibromatosis is best described as hyperplasia the primordial cyst probably results from cystic degeneration of the stellate reticulum early in the formation of the tooth histological sections of a lesion removed from the apex of a carious tooth show immature fibrous tissue and chronic inflammatory cells. Diagnosis periapical granuloma Radiographs of Garre's osteomyelitis show thickening of the cortex increasing kilovoltage more penetration