Identify the correct statement regarding endodontic bacterial cultures 1) Absorbent papers should be placed 2 mm within the root canal before irrigating 2) Gram +ve cocci predominate first 48 hours in 75 % of cases 3) Cultural reversal occurs after 48 hours, wait at least 3 days before obturation 4) All of the above
EndodonticsAnswer: 4
Untrue about sectional method of compaction 1. Used for post & crown 2. Voids are more 3. Difficult to retrieve 4. Vertical root fractures are more
EndodonticsAnswer: 4
Hydroxylation of protocollagen to true collagen in wound healing requires 1. Oxygen 2. Ferric ion 3. Ascorbic acid 4. All of the above
EndodonticsAnswer: 4
K-flex file is traditionally made from which shaped blank 1) Diamond 2) Triangular 3) Square 4) All of the above
EndodonticsAnswer: 1
The largest component of gutta-percha cones is 1. Gutta-percha 2. Zinc oxide 3. Resins and waxes 4. Colouring agents
EndodonticsAnswer: 2
K-type file is placed in canal 1. In up and down motion 2. Rotating clockwise and anticlockwise towards apex 3. Rotating 360 degrees pushing towards apex 4. Pushing straight towards apex
EndodonticsAnswer: 2
The most generally accepted treatment of horizontal root fracture in the apical third of a maxillary central incisor involves 1) Splinting with orthodontic bonds and a sectional arch wire 2) Frequent pulp testing and radiographic examination 3) Extraction of the tooth 4) Immediate pulp extirpation
EndodonticsAnswer: 2
The teeth that are more prone to perforation by slight mesial and distal deviation of a bur are 1. Mandibular incisors & maxillary first premolars 2. Maxillary first premolars & mandibular molar 3. Maxillary incisors & mandibular molars 4. Maxillary molar & mandibular first premolar
