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MCQs
I-The innervations of dental pulp does not include the following except:
- High density of proprioceptors
- Myelinated C fibers
- Myelinated A fibers
- Plexus of Raschkow
II-Cracked tooth has the highest incidence in:
- Maxillary 1st molar
- Maxillary 2nd molar
- Mandibular 1st molar
- Mandibular 2nd molar
III. Gutta Percha points are composed of:
- 20% GP + 66% filler + 11% radiopacifier + 3% plasticizer
- 66% GP + 20% filler + 11% radiopacifier + 3% plasticizer
- 50% GP + 36% filler + 11% radiopacifier + 3% plasticizer
- 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:
- Gram-positive
- Gram-negative
- Obligate anaerobes
- None of the above
V. All of the following can be used for canal obstruction removal except:
- Ultrasonics
- MAP system
- Massarran kit
- Gonon kit
Key answers: 3, 4, 1,1, 2