Periodontics SDLE MCQ | Part 1

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NameEmailPhone Number

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Category: Periodontics

1) A patient has recession of 1 mm on #43 and 2 mm on #44. What is the class of recession?

Class 4

Class 1

Class 3

Class 2

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Category: Periodontics

2) A radiograph shows bone loss between the roots of a molar. What type of bone loss is this?

Vertical bone loss

Interdental bone loss

Interradicular bone loss

Horizontal bone loss

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Category: Periodontics

3) What is found in healthy gingival tissue?

Moderate lymphocytes

Plasma cells

Severe lymphocytes

Mild lymphocytes

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Category: Periodontics

4) A patient is unsatisfied with their short teeth. What is the best treatment?

Crown lengthening alone

Orthodontics

Veneers

Crown lengthening and crown

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Category: Periodontics

5) What is observed in healthy gingiva histologically?

No inflammatory cells

Mild lymphocytes

Plasma cells

Abundant PMNs

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Category: Periodontics

6) What is the width of the canine according to the golden proportion if the lateral incisor is 4.4 mm?

8.0 mm

7.2 mm

6.6 mm

5.8 mm

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Category: Periodontics

7) An 85-year-old with uncontrolled diabetes and 50% bone loss. What is the management?

SRP and OHI every 6 months

SRP and antibiotics

SRP and OHI every 2 months

SRP and OHI every 3 weeks

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Category: Periodontics

8) Overhangs on two teeth with localized bone loss. What is the main etiologic factor?

Plaque

Occlusal trauma

Calculus

Poor restoration

9 / 50

Category: Periodontics

9) A patient with NUG (necrotizing ulcerative gingivitis) has a high fever. What is the first step in treatment?

OHI and mouthwash

Pain management

Supra scaling and antibiotics

Deep scaling

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Category: Periodontics

10) After active treatment for severe periodontitis, residual pockets >5 mm indicate what?

Advanced periodontitis

Low chance of recurrence

High chance of recurrence

Healing

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Category: Periodontics

11) Which tooth is most difficult to access during periodontal surgery?

1st maxillary premolar

Maxillary distobuccal root of 1st molar

2nd max molar

Lower molar

12 / 50

Category: Periodontics

12) After removing a badly broken bridge and carious teeth with inflamed gingiva, what is the next step?

Crown lengthening

Extraction

Disease control

Take impression

13 / 50

Category: Periodontics

13) When cementum is denuded, exposing dentin, what is the likely cause?

Developmental defect

Vertical root fracture

Trauma

Caries

14 / 50

Category: Periodontics

14) A patient has an open contact between teeth #25 and #26 with localized moderate periodontitis. What is the cause?

Open contact

Poor oral hygiene

Trauma

Calculus buildup

15 / 50

Category: Periodontics

15) A patient with anterior crowns presents with spacing and trauma from occlusion. What type of trauma is this?

Combined

Secondary

Primary

Persistent

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Category: Periodontics

16) What is the grade of fremitus when movement is palpable but not visible?

Grade 2

Grade 4

Grade 3

Grade 1

17 / 50

Category: Periodontics

17) During crown lengthening, if the margin is 1 mm from the bone, what should be done?

Perform a flap

Remove 2 mm more

Close and suture

Wait and observe

18 / 50

Category: Periodontics

18) Which tooth is most difficult to access during furcation treatment?

2nd max molar

2nd mand molar

1st mand molar

1st max molar

19 / 50

Category: Periodontics

19) Interdental inflammation between teeth #11, #12, and #13 is classified as what?

Generalized gingivitis

Localized papillary gingivitis

Localized diffuse

Localized marginal

20 / 50

Category: Periodontics

20) A clinical picture shows a periodontal abscess with pus discharge. What is the treatment?

Incision and drainage

Extraction

RCT

Observe

21 / 50

Category: Periodontics

21) A patient on phenytoin has gingival growth. What is the treatment?

Scaling

Gingivectomy

Changing the drug

Consult physician and plaque control

22 / 50

Category: Periodontics

22) Which bacteria are associated with gingivitis?

Gram+

T. forsythia

A.A

Gram-

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Category: Periodontics

23) A red line at the marginal gingiva is observed. What is the management?

Antibiotics

Gingivoplasty

Scaling

Gingivectomy

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Category: Periodontics

24) A short trunk of tooth #27 requires crown lengthening. What is the main concern?

Root fracture

Biologic invasion

Furcation invasion

Pulp exposure

25 / 50

Category: Periodontics

25) Why is caries risk assessment important during active periodontal therapy?

Tooth mobility

Increased pocket depth

Loss of coronal tooth

Exposure of root surface

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Category: Periodontics

26) A tooth with grade II buccal furcation involvement. What is the best treatment?

Furcation plasty

GTR

Tunnel preparation

Root resection

27 / 50

Category: Periodontics

27) A patient has very dark staining on all teeth. What is the best treatment?

Crown lengthening and crown

Whitening

Crown lengthening alone

Veneers

28 / 50

Category: Periodontics

28) A patient needs crown lengthening but has a short root trunk. What is the main concern?

Damage the bifurcation area

Root fracture

Cause sensitivity

Perforation in furcation area

29 / 50

Category: Periodontics

29) A heavy smoker is defined as someone who smokes at least how many cigarettes per day?

40 cigarettes

10 cigarettes

30 cigarettes

20 cigarettes

30 / 50

Category: Periodontics

30) What is ridge mapping used for?

Assessing periodontal pockets

Determining ridge height and width

Evaluating tooth mobility

Measuring bone density

31 / 50

Category: Periodontics

31) A patient has grade 1 mobility in lower teeth, calculus, and PD of 5 mm. What is the treatment?

Splinting

Extraction

Antibiotics

Scaling and root planning

32 / 50

Category: Periodontics

32) What type of periodontal disease is common in mouth breathers in the upper anterior area?

Gingivitis

Chronic inflammation and gingival enlargement

Recession

Periodontitis

33 / 50

Category: Periodontics

33) Which type of flap is good for biopsy and closed by primary intention?

Envelope

Elliptical

Triangular

Semilunar

34 / 50

Category: Periodontics

34) What is the Sri Lanka rapid rate of progression for periodontitis?

5%

8%

12%

10%

35 / 50

Category: Periodontics

35) Which bacteria are associated with periodontitis?

T. forsythia

P. gingivalis

A.A

S. mutans

36 / 50

Category: Periodontics

36) Which characteristic of the periodontal ligament (PDL) is responsible for shock absorption?

Mechanical

Physical

Biological

Chemical

37 / 50

Category: Periodontics

37) What happens to gingival thickness with increasing age?

Decrease gingival thickness

Increase gingival thickness

Decrease attached gingiva

Increase attached gingiva

38 / 50

Category: Periodontics

38) What determines the type of floss to be used for a patient?

Proximal contact tightness

Roughness of contact

Patient preference

Manual dexterity

39 / 50

Category: Periodontics

39) What is the best type of floss for a dental bridge?

Dental tape

Superfloss

Interdental brush

Water flosser

40 / 50

Category: Periodontics

40) What is the modified pen grasp used for?

Flap elevation

Scaling

Probing

Suturing

41 / 50

Category: Periodontics

41) Which cells are responsible for bone resorption and remodeling?

Osteocyte

Osteoblast

Osteoclast

Fibroblast

42 / 50

Category: Periodontics

42) A patient with plasma cell gingivitis. What is the treatment?

Gingivectomy

Antibiotics

Allergen identification and removal

Plaque control

43 / 50

Category: Periodontics

43) A patient with NUG and high fever. What should be done on the first visit?

Deep scaling

Oral hygiene and mouthwash

Pain management

Supracrestal scaling and antibiotics

44 / 50

Category: Periodontics

44) What is the basis for choosing dental floss for a patient?

Proximal contact tightness

Roughness of contact

Comfort

Manual dexterity

45 / 50

Category: Periodontics

45) A patient with Stillman cleft and nail-biting habits has recession near the MGJ. What is the treatment?

Gingivectomy

RMGIC

Connective tissue graft

Flap surgery

46 / 50

Category: Periodontics

46) How much bone loss is required to appear on radiographs?

30-50%

50-70%

20-30%

10-20%

47 / 50

Category: Periodontics

47) Which of the following indicates resolution of gingival inflammation?

Lipoxins

Lysozyme

Histamine

Prostaglandin

48 / 50

Category: Periodontics

48) Which tooth is most difficult to access during periodontal surgery?

Mandibular molar

1st maxillary premolar

2nd max molar

Maxillary 1st molar

49 / 50

Category: Periodontics

49) A patient has PD of 3-5 mm and 20% bone loss. What is the diagnosis?

Localized stage II grade B

Localized stage I grade A

Generalized stage II grade B

Generalized stage I grade A

50 / 50

Category: Periodontics

50) Which instrument is used to check root surface smoothness after scaling?

Explorer

Hoe

Mirror

Chisel

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