1. Replacement of lost tissue by ______ tissue is known as repair.
(a) Connective (b) Granulation (c) Epithelial (d) Vascular
2. In human beings, regeneration is limited to epithelium and
(a) Kidney (b) Brain (c) Liver (d) Heart
3. All except one of the following conditions significantly affect the healing process
(a) Diabetes mellitus (b) Beriberi
(c) Scurvy (d) Heavy doses of X-rays
4. Which type of biopsy also serves as a treatment option?
(a) Punch biopsy
(b) Incisional biopsy
(c) Fine needle aspiration biopsy
(d) Excisional biopsy
5. Suggest a suitable biopsy technique for a hard, bony lesion with a large lumen
(a) Excisional biopsy
(b) Punch biopsy
(c) Fine needle aspiration biopsy
(d) Incisional biopsy
6. The most preferred instrument for small, soft, oral lesions is
(a) Scalpel (b) Cautery
(c)
Needle
7. Immediately after removal of the biopsied specimen, it must be
fixed in ______ percent formalin.
(a) 10 (b) 100 (c) 50 (d) 75
8. Healingbyprimaryintentionisthattypeofhealingwhichoccurs when
(a) It occurs within 72 hours
(b) It is filled in by keloid
(c) It is followed by significant loss of tissue
(d) The edges of the wound are closely approximated
9. After the edges of the wound have been approximated and sutured, the first cells to reach the site of wound are
(a) Fibroblasts (b) Leukocytes
(c) Epithelial cells (d) RBCs
10. The stimulus for differentiation of new fibroblasts is provided through cytokines liberated by
(a) Mast cells (b) Plasma cells (c) Epithelial cells (d) Macrophages
11. Healing of which of the following regions in oral cavity is most likely to occur by secondary intention?
(a) Labial mucosa (b) Buccal mucosa (c) Vestibule (d) Hard palate
12. The most frequently employed fixative for fixing the collected material for exfoliative cytology on a glass microscopic slide is
(a) Formaldehyde (b) 95 percent alcohol (c) Glutaraldehyde (d) Mercuric chloride
13. Exfoliative cytology is not indicated in which of the following lesions?
(a) Fibroma (b) Squamous cell carcinoma (c) Pemphigus vulgaris (d) Sickle cell anemia
14. The organization of clot in gingivectomy wounds usually occurs by ______ days.
(a) 15–20 (b) 8–10 (c) 2–4 (d) 1–2
15. Epithelialization of a gingivectomy wound is usually complete
by ______ days.
(a) 1–2 (b) 3–5 (c) 10–14 (d) 15–20
16. Healing of which region of gingiva is the slowest?
(a) Free gingiva (b) Attached gingiva (c) Interdental gingiva (d) Gingival sulcus
17. The surface of the blood clot 24–48 hours after tooth extraction is covered by
(a) Fibrin (b) Prothrombin (c) Epithelial cells (d) Collagen fibers
18. Organization of the clot in an extraction wound occurs by
(a) Epithelial cells growing into the clot
(b) Fibroblasts growing into the clot
(c) Contraction of the clot
(d) Blood vessels growing into the clot
19. Young trabeculae of new, woven bone make their appearance within the organizing clot in an extraction wound by ______ week.
(a) 1st (b) 4th (c) 9th (d) 3rd
20. Dry socket/alveolitis sicca is essentially a
(a) Acute osteomyelitis (b) Chronic osteomyelitis (c) Garé osteomyelitis (d) Focal osteomyelitis
21. Which of the following sign/symptom is not encountered in dry socket?
(a) Suppuration (b) Pain
(c) Foul smell (d) Exposure of bone
22. Extraction of which of the following teeth is most likely to result in dry socket?
(a) Extraction of mobile maxillary incisors
(b) Extraction of firm mandibular incisors
(c) Extraction of impacted mandibular 3rd molars
(d) Extraction of firm maxillary canines
23. Which of the following clinical settings is least likely to result in
dry socket?
(a) Fracture of a tooth during extraction
(b) Patients suffering from Paget’s disease
(c) Extraction of a mobile maxillary incisor
(d) Patients undergoing radiotherapy
24. The newly forming bone at the site of fracture is called
(a) Woven bone (b) Callus
(c) Spongy bone (d) Immature bone
25. Which structure of bone is most important during callus formation?
(a) Periosteum (b) Epiphysis (c) Endosteum (d) Metaphysis
26. Replantation refers to
(a) Insertion of vital/nonvital tooth into same socket
(b) Insertion of vital tooth into another socket of same person
(c) Insertion of nonvital tooth into another person’s socket
(d) Surgical removal of an implant and placement into another
location
27. Whenatoothisavulsed,itisimportanttoreducetheextraoral time in order to
(a) Keep the neurovascular bundle intact
(b) Keep the cells of PDL in a viable state
(c) Prevent dehydration of external tooth surfaces
(d) Prevent bacterial contamination of exposed tooth surfaces
28. In the course of time, many of the replanted teeth result in
(a) Gomphosis
(b) Ankylosis and root resorption
(c) Fibrosis
(d) Epithelialization
29. Mostcommonly,adamagedpermanentmandibularfirstmolar is transplanted by
(a) Developing third molar
(b) Osseointegrated implant
proteins.
(c) Developing second molar (d) Developing first molar
(a) Keloid/hypertrophic scar
(b) Pigmentary changes
(c) Infection
(d
ANSWERS
1. (b)
2. (c)
3. (b)
4. (d)
5. (c)
6. (a)
7. (a)
8. (d)
9. (b)
10. (d)
11. (d)
12. (b)
13. (a)
14. (b)
15. (c)
16. (c)
17. (a)
18. (b)
19. (d)
20. (d)
21. (a)
22. (c)
23. (c)
24. (b)
25. (a)
26. (a)
27. (b)
28. (b)
29. (a)
30. (d)
