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
All of the following incisions are recognized, standard approaches for an apicectomy EXCEPT 1. Cervical margin of teeth with buccal extensions 2. Figure-of-eight 3. Rectangular 4. Semilunar
EndodonticsAnswer: 2
Which of the following is untrue about Ca(OH) 1. It is used in pulp capping apexification & apexogenesis 2. Creates alkaline environment promoting formation of calcific bridge 3. It is the anionic part that is important for hard tissue formation 4. Calcium from calcium hydroxide enters calcific bridge
EndodonticsAnswer: 4
The retention form in endodontic cavity is attained at 1. Junction of coronal preparation and radicular preparation 2. Coronal 2/3rd of radicular cavity 3. Apical 1/3rd radicular cavity 4. At the tip of the apex by apical matrix
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
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
Following are true for K-type file root canal instrument except 1) It is used for machining of dentin 2) The number of flutes on the blade is more in file than reamer 3) The file are fabricated from square or triangular crossection wire 4) Have more flexibility
EndodonticsAnswer: 1
The most effective means of reducing microbes in root canal 1. Frequent medication of root canal 2. Complete debridement through instrumentation 3. Systemic antibiotics 4. All of the above
