In homo-applied vital bleaching techniques which of the following agents is used most frequently 1. 5 % sodium perborate 2. 18 % hyderochloric acid 3. 35 % hydrogen peroxide 4. 10-15 % carbamide peroxide
EndodonticsAnswer: 4
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
In periapical surgery, which of the following flap designs limits access to the operative site and often heals with scar formation 1) Envelope 2) Rectangular 3) Triangular 4) None of the above
EndodonticsAnswer: 1
Which of the following statements is false? 1. The upper first premolar usually has two canals 2. Root canal instruments are best sterilized by a chemical method 3. All root canals must be enlarged to at least a size 25 file 4. All are false
EndodonticsAnswer: 2
Which of the following regarding gauzing and tuning are correct 1) Gauzing is performed in the coronal portion of the canal to check the coronal enlargement 2) Tuning identified the most apical cross-sectional diameter of the canal 3) Gauzing and tuning verify shape of the canal as well as cross-section at the apical 1/3rd 4) None of the above
EndodonticsAnswer: 3
Contraindications for apicoectomy are as follows 1. When general health is below par with rheumatism, diabetes, nephritis disease 2. In teeth with deep periodontal pockets and excessive mobility 3. In cases of inaccessibility 4. All of the above
EndodonticsAnswer: 4
After biomechanical preparation, master cone of gutta-percha seems to be 2 mm short of apical seat. You would like to 1) Use a smaller cone 2) Trim the same cone to apical seat 3) Fill up to that level only 4) Use a sliver cone
EndodonticsAnswer: 1
The mandibular molars generally have 1) Two roots and two canals 2) Two roots and three canals 3) Three roots and two canals 4) None of the above