Traumatology MCQs – Pedodontics MCQs
(Dental Pulse)

Traumatology MCQs – Pedodontics MCQs (Dental Pulse)

1. Injuries to primary teeth occur mostly at
A) 6 – 12 months
B) 3 – 4 years
C) 5 – 6 years
D) 1 ½ – 2 ½ years

2. In an apexification procedure, any excess calcium hydroxide periapically:
A) Will cause necrosis in the Periapical tissues
B) Will resorb on its own
C) Will be removed by multinucleated giant cells
D) Will have to be removed by apicoectomy

3. 8 year-old child had fractured his maxillary central incisor 10 months ago. The pulp shows no response. There is no Periapical lesion in the radiograph. The treatment of choice is:
A) Ca(OH)₂ pulp capping
B) Formocresol pulpotomy
C) Conventional root canal treatment
D) Complete debridement and apexification

4. Apexogenesis of incompletely formed root is:
A) Induce the formation of apical 1/3 of root
B) Closure of apical formation in a developing tooth
C) Induce the formation of apical 2/3 of root
D) Deposition of cellular cementum at open apex

5. Which of the following medicaments is indicated to obturate the canals of a primary tooth in which a pulpectomy was performed:
A) Gutta-percha
B) Calcium hydroxide
C) Zinc oxide-eugenol
D) Calcium hydroxide-CMCP paste

6. A 11-year-old child comes to the dental office one hour after injury to a maxillary central incisor. The tooth is vital and slightly mobile. Radiographic examination reveals a fracture at the apical third of the root. What is the best treatment at this point of time:
A) Render palliative therapy
B) Extract the tooth
C) Relieve the occlusion and splint the tooth
D) Perform immediate root canal treatment and splint

7. Babu, a 7 ½ years old child, reports with a fracture of central incisor with an open apex, there is large pulpal exposure. The treatment of choice is:
A) Smooth the edges and protect the exposed portion with ZOE dressing
B) Pulpectomy and calcium hydroxide dressing
C) Pulpotomy and calcium hydroxide dressing
D) Direct pulp capping calcium hydroxide dressing

8. A 4 year old child sustained a fracture in central incisor one month ago. On examination a necrotic pulp was seen with no other pathological findings. The treatment of choice is:
A) Watchful observation
B) Extraction followed by space maintainer
C) Pulpectomy and root canal filling with gutta percha
D) Endodontic treatment and root canal filling with ZOE

9. A child who has an avulsed tooth ½ hour back should carry the tooth to the dentist in:
A) Cold milk
B) Normal saline
C) Wrapped in a wet handkerchief
D) Buccal vestibule

10. A permanent tooth bud, which has been accidentally removed during extraction of a deciduous tooth, should be:
A) Discarded
B) The socket curetted and the tooth bud replanted
C) Pulpectomy of the tooth bud and placed into the socket
D) Place deep into the socket from where it was removed

11. Apexification is the treatment of choice for a permanent tooth with wide open apex when:
A) The pulp is necrotic
B) The pulp is vital
C) The pulp and root canals are calcified
D) There is a traumatic pulp exposure during cavity preparation

12. Treatment for Ellis class III fracture of anterior tooth in a 12-year-old patient reported after 72 hours is:
A) Pulpotomy
B) Root canal treatment
C) Direct pulp capping
D) Indirect pulp capping

13. The prognosis for teeth with root fracture is best when the fracture occurs in the:
A) Coronal one third of the root
B) Middle one third of the root
C) Apical one third of the root
D) Coronal half of the root

14. Ellis and deway classification of traumatic fractures are how many:
A) 9
B) 5
C) 3
D) 4

15. Mineral trioxide aggregate used in apexification:
A) Forms an integral part of the root canal filling
B) Dissolves as the apical barrier formation progresses
C) Has not yielded good results
D) Is available in a paste form

16. In class III Ellis fracture:
A) Only enamel is involved
B) Enamel and dentine are involved
C) Enamel, dentine and pulp are involved
D) Non-vital pulp

17. A 10 years old child has intrusion of permanent maxillary central incisor. The choice of treatment is:
A) Put tooth in its place and splint it
B) Allow tooth to erupt on its own (spontaneous eruption)
C) Treat it orthodontically
D) Do nothing

18. In a 2 year old child maxillary deciduous central incisor is intruded by 4mm. Treatment is:
A) Remove the intruded incisor
B) Resorption of the intruded incisor
C) Make patient comfortable and observe
D) Resorption and splint

19. Which type of injury is least common in children?
A) Intrusion
B) Avulsion
C) Subluxation
D) Complicated crown fracture

20. Exarticulation of teeth means:
A) Intrusion
B) Extrusion
C) Sublimation
D) Avulsion

21. Contusion usually result from:
A) Cut injury
B) Crush injury
C) Blunt trauma
D) Penetrating injury

22. Source of calcium in dentinal bridge is:
A) Blood
B) Calcium hydroxide
C) Saliva
D) ICF

23. The X-ray of a traumatized tooth is important because:
A) To determine root fracture
B) To assess the stage of root development
C) As a base for future comparisons
D) All of the above

24. In an inferior alveolar nerve block given to a child, the position of the needle as compared to that in an adult is more:
A) Superior
B) Inferior
C) Buccal
D) Lingual

25. The most frequent cause of fracture of a root tip during extraction of a primary molar is:
A) Ankylosis of the tooth
B) Improper use of cow horn forceps
C) Presence of supernumerary premolar
D) Root resorption between apex and bifurcation

26. The change in colour of a traumatized primary incisor usually results from all the following except:
A) Laceration of periodontal fibres
B) Diffusion of biliverdin into the dentinal tubules
C) Development of a heavy layer of secondary dentin
D) Internal resorption of dentin within the crown

27. The radiographic examination of a traumatized tooth is essential:
A) To establish baseline data
B) To find associated root fracture
C) To determine stage of root development
D) All of the Above

28. Traumatic injury to primary tooth leads to intrusion, after how much time the teeth usually re-erupts?
A) 30 Days
B) 3 Months
C) 6 Months
D) 12 Months

29. For reimplantation of avulsed tooth:
A) Curottage of socket is done
B) Curottage of root surface is done
C) Mild debridement of socket with saline
D) Root surface is treated with antibiotics

30. Which of the following is the emergency treatment of choice in case of traumatic injury to tooth?
A) Full veneer crown preparation with stainless steel crown
B) A Stainless steel or preformed orthodontic band around the tooth
C) An Acid etched composite restoration
D) A Pin retained composite restoration

31. In root fracture of the apical one-third of permanent anterior teeth, the teeth usually:
A) Discolor rapidly
B) Remain in function and are vital
C) Undergo pulpal necrosis and become ankylosed
D) Are indicated for extraction and prosthetic replacement

32. Which medium of storage for avulsed tooth is best for prolonged extra oral periods?
A) Hank’s Balanced salt solution
B) Milk
C) Distilled water
D) Saliva

33. After more than 1 hour of extra oral time an avulsed tooth is soaked in sodium hypochlorite solution, then it should be soaked in:
A) 10% NaF for 10 min
B) 2% NaF for 10 min
C) 8% SnF2 for 10 min
D) 2% SnF2 for 10 min

34. The best alternative storage medium for avulsed teeth in case culture media are not available is:
A) Milk
B) Water
C) Saline
D) Blood

35. In pediatric fracture of the body of the mandible which of the following is true of fracture line?
A) Downwards and forwards
B) Downwards and backwards
C) In a zigzag line due to the presence of tooth buds
D) In a straight line from above downwards

36. Avulsed tooth is not kept in water because:
A) Water is a hypotonic solution causes rapid cell lysis
B) Water is a hypertonic solution causes rapid cell lysis
C) Water is a hypotonic solution causes shrinkage of cells

37. A child suffers from trauma which causes loss of the primary central incisor. The incisor occlusion does not cause interference. It should be done:
A) The incisor should be allowed for passive and reposition itself
B) Immediate reposition and splinting
C) Reduce the opposite tooth
D) Reduce both the affected and the opposite

38. After trauma of permanent maxillary central incisor, a metallic sound is heard on percussion, this is:
A) Subluxation
B) Lateral luxation
C) Extrusive luxation
D) Concussion

39. Which of the following is most likely to trauma in primary dentition?
A) Intrusion
B) Extrusion
C) Complicated Crown fracture
D) Subluxation