Endodontically treated posterior teeth are more susceptible to fracture that untreated posterior teeth. The best explanation for this is 1) Moisture loss 2) Loss of root vitality 3) Plastic deformation of dentin 4) Destruction of the coronal architecture
EndodonticsAnswer: 4
Final preparation of endodontic cavity in mandibular molar 1. Towards lingually 2. Should be straight occlusually 3. Towards mesially 4. Towards distally
EndodonticsAnswer: 3
Untrue about disinfectants used in biomechanical preparation 1) The action is inversely proportional to their atomic weight 2) Quartenary ammonium compounds are cationic and act by lowering surface tension 3) Both of the above 4) None of the above
EndodonticsAnswer: 4
Internal resorption is due to............ 1. Pulp necrosis 2. Acute inflammation of pulp 3. Chronic inflammation of pulp 4. None of the above
EndodonticsAnswer: 3
What % of lower 1st molars show 2 distal canals 1) 10 2) 30 3) 60 4) 75
EndodonticsAnswer: 2
The tooth is tender on vertical percussion. It may be due to 1) Osteomyelitis 2) Periapical inflammation 3) Necrotic pulp 4) Angular bone loss
EndodonticsAnswer: 2
Inflammatory resorption after reimplantation of avulsed tooth is due to 1) Presence of microorganisms 2) Resorption of cementum 3) Dehydration of root surface 4) All of the above
EndodonticsAnswer: 1
Referred pain to ear is mainly from 1. Mandibular molars-same side 2. Mandibular anterior teeth-same side 3. Maxillary molars-same side 4. Maxillary anterior teeth-same side
