A patient has been treated endodontically for a radiolucent lesion at apex. After 1 year, size of lesion increased. Most possible reason is 1. Leakage due to improper obturation 2. Persistent cystic lining 3. Failure to do apical curetage 4. All of the above
EndodonticsAnswer: 1
Success of reimplanted avulses tooth depends on 1. Proper antibiotic coverage 2. Prevention of dehydration of PD ligament of avulsed tooth 3. Protection of socket 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
A seven-year-old boy fell off his bicycle one-half hour ago and fractured maxillary central incisor at the level of gingiva. Exposed pulp is still vital. Treatement of choice 1. Pulp capping 2. Pulpotomy 3. Pulpectomy 4. Extraction
EndodonticsAnswer: 2
Which of the following is associated with a vital pulp 1) PA cyst 2) PA granuloma 3) Apical abscess 4) Condensing osteitis
EndodonticsAnswer: 4
Which is a hybrid instrument 1. Headstroem or H-files 2. Unifile 3. Flexofile 4. U-file
EndodonticsAnswer: 3
Which of the following is untrue of gutta-percha 1) Compatible with post dowl preparations 2) Indicated in fine canals 3) Major composition is zinc oxide engenol 4) Shrinks slightly after obturation
EndodonticsAnswer: 2
Which surgical procedure is indicated after the endodontic treatment is completed of a mandibular molar with periodontal and carious involvement of the bifurcation 1) Hemisection 2) Fenestration 3) Root amputation 4) Apical curettage
