A permanent tooth with fracture involving apical one-third of root after treatment, would most likely 1. Exhibit internal root resorption 2. Remain vital and functional 3. Be ankylosed 4. Exhibit external root resorption and exfoliate
EndodonticsAnswer: 2
Which root canal of maxillary first molar is difficult for instrumentation 1) Mesiobuccal 2) Distobuccal 3) Distolingual 4) Mesio-lingual
EndodonticsAnswer: 1
The sterility of the root canal during treatment is assessed by 1. Radiographs 2. Clinical observations 3. Bacterial cultures 4. Colour of dressings
EndodonticsAnswer: 3
In which anterior tooth are bifurcated roots present 1) Mandibular lateral incisor 2) Maxillary canine 3) Mandibular central incisor 4) Mandibular premolar
EndodonticsAnswer: 3
Which of the following is true of vertical and lateral condensation 1. Lateral condensation results in better seal 2. Vertical condensation results in better seal 3. Sealibility with either techniques depends on the shape of prepared canal 4. Both are recommended for filling lateral canals
EndodonticsAnswer: 3
Extirpation of pulp in incisor involved in class III carious exposures can be achieved 1. Via the lesion 2. By triangular access cavity preparation 3. Via labial surface 4. None of the above
EndodonticsAnswer: 2
While root canal biomechanical preparation apical constriction is enlarged to 50 no. size instrument you would like to 1) Use reserve filling technique 2) Reinstrument with a larger instrument 1 mm short of previous preparation 3) Fit a 50 mm cone and condense carefully 4) None of the above
EndodonticsAnswer: 2
Angle of tip of an endodontic instrument 1. 75 + 15 2. 75 - 15 3. 80 degrees 4. None of the above
