The success of calcium hydroxide pulpotomy is determined by 1) Formation of a calcification bridge 2) Formation of hard base to support the restoration 3) Continuation of root formation & apexogenesis 4) All of the above
EndodonticsAnswer: 3
Of the following permanent teeth, which is least likely to have two roots? 1) Maxillary canine 2) Mandibular canine 3) Maxillary Ist premolar 4) Mandibular Ist premolar
EndodonticsAnswer: 1
Periapical abscess is differentiated from periodontal abscess by 1. Palpation & radiographs 2. History and vitality tests 3. Radiographs and history 4. Test cavity preparation
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
Bismuth compounds are incorporated in root canal filling materials because they are 1. Radioopaque 2. Germicidal 3. Radiolucent 4. Adhesive
EndodonticsAnswer: 1
The main objective of obturation is 1) Fill the canal and prevent apical percolation of fluids 2) Fill the canal and prevent discolouration of teeth 3) Fill the canal to give support to restoration 4) All of the above
EndodonticsAnswer: 1
Calcium hydroxide was introduced into endodontics by 1. Nygaard Ostby 2. Hermann 3. Schilder 4. Hunter
EndodonticsAnswer: 2
EDTA, which is an active ingredient in root canal preparation, has its principal action in 1. Decalcification of dentin 2. Dissolution of necrotic debris 3. Lubrication of the canal during instrumentation 4. All of the above are correct
