Cutting instruments should be thoroughly sharpened 1) To reduce pain 2) To effectively control the instrument 3) To create smooth surface wall 4) All of the above
Conservative DentistryAnswer: 4
Retention in class II cavities for direct gold filling is provided by 1) Converging proximal walls 2) Occlusal dovetail 3) Acute axiogingival line angles 4) All of the above
Conservative DentistryAnswer: 4
Threaded pins are used in large dental amalgam restorations to provide 1) Retention form 2) Resistance form 3) Occlusal stops for opposing teeth 4) All of the above
Conservative DentistryAnswer: 1
A deficient cavosurface margin in newly condensed amalgam is due to the following factors except 1) Poor condensation of the amalgam 2) Use of a condensor with a small head 3) Use of a large initial increment for condensation 4) None of the above
Conservative DentistryAnswer: 2
A ferrule is 1) A rule governing gold inlay cavity preparation 2) A mechanical rapid tooth separator 3) An encircling band of metal that increases fracture resistance of the tooth 4) None of the above
Conservative DentistryAnswer: 3
The method of proper condensation of gold 1. Concentrated overlapping from centre towards periphery of the cavity 2. Concentrated circles overlapping from periphery towards the centres 3. Both of the above 4. None of the above
Conservative DentistryAnswer: 2
In designing a retainer on a non-carious mandibular first premolar abutment with short clinical crown, which of the following restoration is most appropriate 1) A full crown 2) A reverse 3/4 crown 3) MOD onlay 4) Inlay
Conservative DentistryAnswer: 3
In a class 1 cavity prepared for silver amalgam is extended to half the distance between the contact area and the fissures and the cusp tip, the direction of the buccal and lingual walls is 1) Diverging 2) Converging 3) Parallel 4) Independent
