Obturation of root canal should achieve 1) Tug - back 2) Hermetic seal 3) Fluid - free seal 4) All of the above
EndodonticsAnswer: 4
All are true about walking bleach, except 1. 1-3 appointments are required 2. Never be diluted with water and saline 3. Sodium perborate and hydrogen peroxide are mixed 4. Use of eugenol as temporary is contraindicated
EndodonticsAnswer: 2
No. 10 size file with a taper 0.02 mm has extended 1.0 mm past the apical foramen. Which of the following occurs 1) It opens apical foramen to a minimum diameter of 0.12 mm 2) It reduces the percentage of change from a No. 10 file to a No. 270 file by 50 % 3) It eliminates natural constrictions and results in overfilling 4) All of the above
EndodonticsAnswer: 1
Most of the failures of replanted tooth are due to 1. Replacement resorption 2. Inflammatory resorption 3. External resorption 4. Internal resorption
EndodonticsAnswer: 3
Final preparation of endodontic cavity in mandibular molar 1) Towards lingually 2) Should be straight occlusually 3) Towards mesially 4) Towards distally
EndodonticsAnswer: 3
Percussion test is mainly done 1) To test integrity of pulp tissues 2) To test the integrity of periodontal lingament 3) To test the vitality of the pulp tissues 4) To test the presence of chronic abscess
EndodonticsAnswer: 2
The control teeth used during pulp testing are 1) Adjacent and opposing teeth 2) Adjacent and contralateral teeth 3) Suspected tooth only 4) Adjacent teeth only
EndodonticsAnswer: 2
All of the following are true about gutta-percha cone except 1) Gutta-percha is composed of 60-85 % gutta-percha and 20 % zinc oxide 2) Used in lateral condensation method 3) When heated exists in a & b form 4) All of the above are true
