Barbed broach is used for 1. Extirpation of pulp 2. Enlargement of canal 3. Obturation of canals 4. All of the above
EndodonticsAnswer: 1
Heat induced gutta-percha (vertical condensation) is particularly useful in which of the following conditions? 1) When there is a larger open apex 2) When there are aberrations ro irregularities in the canal 3) When the canals are curved and small 4) All of the above
EndodonticsAnswer: 2
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
The blue coloured reamer is numbered as 1) 6 size of instrument 2) 25 and 50 size of instrument 3) 30 and 60 size of instrument 4) 10 size of instrument
EndodonticsAnswer: 3
The most generally accepted treatment of horizontal root fracture in the apical third of a maxillary central incisor involves 1. Splinting with orthodontic bonds and a sectional arch wire 2. Frequent pulp testing and radiographic examination 3. Extraction of the tooth 4. Immediate pulp extirpation
EndodonticsAnswer: 2
There are sharp demarcations between pulpal chambers and pulp canals in which of the following teeth? 1) Mandibular second premolars 2) Maxillary first premolars 3) Maxillary lateral incisors 4) Mandibular canines
EndodonticsAnswer: 2
RCT treated with well-filled post and core, has a periapical radiolucency 1) Apicoectomy and retrograde filling with silver 2) Periapical curettage and apicoectomy 3) Retreat and filling with gutta-percha 4) None of the above
EndodonticsAnswer: 1
Most important and critical step in root canal preparation is 1. Biomechanical preparation 2. Isolation 3. Sterilisation 4. Obturation