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Periodontics

Periodontics fundamentals for MDS entrance examination covering gingival anatomy, histology, periodontal ligament structure, pathology, and clinical management

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Normal consistency of gingiva is

  1. soft
  2. firm and resilient
  3. hard
  4. firm and leathery
  5. hard and leathery
Question 2 Multiple Choice (Single Answer)

Which of the following statements is/are true?

  1. Attached gingiva is stippled.
  2. Loss of stippling is reversible.
  3. Loss of stippling is a common sign of gingival disease.
  4. Stippling is seen on only attached gingiva.
  5. All of the above
Question 3 Multiple Choice (Single Answer)

Which of the following statements is incorrect?

  1. With the increase in age, keratinization of gingiva increases.
  2. With the increase in age, keratinization of gingiva decreases.
  3. With the increase in age, width of the attached gingiva increases.
  4. With the increase in age, number of elastic fibers in the periodontal ligament increases.
  5. Keratinization of gingiva is maximum on hard palate.
Question 4 Multiple Choice (Single Answer)

In which type of cementum are collagen fibers absent?

  1. Acellular afibrillar cementum
  2. Cellular intrinsic fiber cementum
  3. Both 1 and 2
  4. Acellular extrinsic fiber cementum
  5. Cellular mixed stratified cementum
Question 5 Multiple Choice (Single Answer)

Which type of cells are absent in the junctional epithelium of normal gingiva?

  1. Keratinosomes
  2. Melanocytes
  3. Merkel cells
  4. Langerhans cells
  5. Polymorphonuclear leukocytes
Question 6 Multiple Choice (Single Answer)

Odland bodies are also known as

  1. Merkel cells
  2. Keratinosomes
  3. Melanocytes
  4. Langerhans cells
  5. Both 1 and 3
Question 7 Multiple Choice (Single Answer)

Width of attached gingiva in the incisor region in maxilla is

  1. 3.5 - 4.5 mm
  2. 3.3 - 3.9 mm
  3. 1.9 mm
  4. 1.8 mm
  5. None of the above
Question 8 Multiple Choice (Single Answer)

According to Horning and Cohen staging of oral necrotizing disease, stage 3 represents

  1. NUG
  2. NUP
  3. NOMA
  4. Necrotizing stomatitis
  5. All of the above
Question 9 Multiple Choice (Single Answer)

The most numerous principal fibres of periodontal ligament are

  1. transseptal fibres
  2. alveolar crest fibres
  3. oblique fibres
  4. horizontal fibres
  5. apical fibres
Question 10 Multiple Choice (Single Answer)

Placement of graft will be failure in which class of recession?

  1. Class I
  2. Class II
  3. Class III
  4. Class IV
  5. Both 1 and 2
Question 11 Multiple Choice (Single Answer)

In periodontal ligament, there is

  1. Type I collagen
  2. Type II collagen
  3. Type III collagen
  4. Type IV collagen
  5. Type V collagen
Question 12 Multiple Choice (Single Answer)

The junctional epithelium is attached to the gingival connective tissue by

  1. Internal basal lamina
  2. External basal lamina
  3. Hemidesmosomes
  4. Enamel cuticle
  5. Nasmyth's membrane
Question 13 Multiple Choice (Single Answer)

Odontoplasty is indicated in

  1. Grade I furcation involvement
  2. Grade II furcation involvement
  3. Grade III furcation involvement
  4. Grade IV furcation involvement
  5. Grade II and Grade III furcation involvement
Question 14 Multiple Choice (Single Answer)

Which of the following is false about cornocobs structure?

  1. Cornocob structure are highly specific cell-to-cell interactions.
  2. Cornocob appearance is seen in supragingival plaque towards tooth surface.
  3. The cornocob formations have Gram-negative rod-shaped bacterial cells.
  4. Central Gram-positive core supporting outer coccal cells is called cornocob arrangement.
  5. Central Gram-negative core supporting outer coccal cells is called cornocob arrangement.
Question 15 Multiple Choice (Single Answer)

Gingiva in children is

  1. more keratinized and more stippled
  2. more keratinized and less stippled
  3. less keratinized and more stippled
  4. less keratinized and less stippled
  5. none of the above
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