MCQs

I-The innervations of dental pulp does not include the following except:

  1. High density of proprioceptors
  2. Myelinated C fibers
  3. Myelinated A fibers
  4. Plexus of Raschkow

II-Cracked tooth has the highest incidence in:

  1. Maxillary 1st molar
  2. Maxillary 2nd molar
  3. Mandibular 1st molar
  4. Mandibular 2nd molar

III. Gutta Percha points are composed of:

  1. 20% GP + 66% filler + 11% radiopacifier + 3% plasticizer
  2. 66% GP + 20% filler + 11% radiopacifier + 3% plasticizer
  3. 50% GP + 36% filler + 11% radiopacifier + 3% plasticizer
  4. 36% GP + 50% filler + 11% radiopacifier + 3% plasticizer

 IV. In root-filled teeth with persisting periapical lesion and require re-treatment, the predominant bacteria are:

  1. Gram-positive
  2. Gram-negative
  3. Obligate anaerobes
  4. None of the above

 V. All of the following can be used for canal obstruction removal except:

  1. Ultrasonics
  2. MAP system
  3. Massarran kit
  4. Gonon kit

Key answers: 3, 4, 1,1, 2