Periodontics SDLE MCQ | Part 1

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1 / 50

Category: Periodontics

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

Antibiotics

Gingivectomy

Plaque control

Allergen identification and removal

2 / 50

Category: Periodontics

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

Oral hygiene and mouthwash

Supracrestal scaling and antibiotics

Deep scaling

Pain management

3 / 50

Category: Periodontics

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

5.8 mm

8.0 mm

7.2 mm

6.6 mm

4 / 50

Category: Periodontics

4) Which bacteria are associated with periodontitis?

P. gingivalis

T. forsythia

A.A

S. mutans

5 / 50

Category: Periodontics

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

Interdental brush

Superfloss

Dental tape

Water flosser

6 / 50

Category: Periodontics

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

Root resection

GTR

Tunnel preparation

Furcation plasty

7 / 50

Category: Periodontics

7) What is the modified pen grasp used for?

Suturing

Probing

Scaling

Flap elevation

8 / 50

Category: Periodontics

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

Primary

Persistent

Secondary

Combined

9 / 50

Category: Periodontics

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

Generalized stage II grade B

Localized stage II grade B

Generalized stage I grade A

Localized stage I grade A

10 / 50

Category: Periodontics

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

Developmental defect

Caries

Vertical root fracture

Trauma

11 / 50

Category: Periodontics

11) What happens to gingival thickness with increasing age?

Decrease attached gingiva

Increase gingival thickness

Decrease gingival thickness

Increase attached gingiva

12 / 50

Category: Periodontics

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

Mandibular molar

1st maxillary premolar

2nd max molar

Maxillary 1st molar

13 / 50

Category: Periodontics

13) What is observed in healthy gingiva histologically?

Plasma cells

No inflammatory cells

Abundant PMNs

Mild lymphocytes

14 / 50

Category: Periodontics

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

Localized diffuse

Localized papillary gingivitis

Generalized gingivitis

Localized marginal

15 / 50

Category: Periodontics

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

Veneers

Crown lengthening alone

Crown lengthening and crown

Orthodontics

16 / 50

Category: Periodontics

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

Antibiotics

Splinting

Extraction

Scaling and root planning

17 / 50

Category: Periodontics

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

Proximal contact tightness

Comfort

Manual dexterity

Roughness of contact

18 / 50

Category: Periodontics

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

Periodontitis

Recession

Chronic inflammation and gingival enlargement

Gingivitis

19 / 50

Category: Periodontics

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

Veneers

Crown lengthening alone

Crown lengthening and crown

Whitening

20 / 50

Category: Periodontics

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

Extraction

Take impression

Crown lengthening

Disease control

21 / 50

Category: Periodontics

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

Loss of coronal tooth

Exposure of root surface

Tooth mobility

Increased pocket depth

22 / 50

Category: Periodontics

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

Furcation invasion

Biologic invasion

Pulp exposure

Root fracture

23 / 50

Category: Periodontics

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

Explorer

Chisel

Mirror

Hoe

24 / 50

Category: Periodontics

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

1st max molar

1st mand molar

2nd mand molar

2nd max molar

25 / 50

Category: Periodontics

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

Prostaglandin

Lysozyme

Histamine

Lipoxins

26 / 50

Category: Periodontics

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

SRP and OHI every 3 weeks

SRP and OHI every 2 months

SRP and OHI every 6 months

SRP and antibiotics

27 / 50

Category: Periodontics

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

Grade 3

Grade 2

Grade 4

Grade 1

28 / 50

Category: Periodontics

28) What is ridge mapping used for?

Measuring bone density

Evaluating tooth mobility

Assessing periodontal pockets

Determining ridge height and width

29 / 50

Category: Periodontics

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

Trauma

Calculus buildup

Poor oral hygiene

Open contact

30 / 50

Category: Periodontics

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

Class 1

Class 2

Class 3

Class 4

31 / 50

Category: Periodontics

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

Horizontal bone loss

Vertical bone loss

Interradicular bone loss

Interdental bone loss

32 / 50

Category: Periodontics

32) What is found in healthy gingival tissue?

Mild lymphocytes

Moderate lymphocytes

Severe lymphocytes

Plasma cells

33 / 50

Category: Periodontics

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

Biological

Physical

Mechanical

Chemical

34 / 50

Category: Periodontics

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

Fibroblast

Osteoblast

Osteocyte

Osteoclast

35 / 50

Category: Periodontics

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

Roughness of contact

Patient preference

Proximal contact tightness

Manual dexterity

36 / 50

Category: Periodontics

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

Occlusal trauma

Poor restoration

Plaque

Calculus

37 / 50

Category: Periodontics

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

Consult physician and plaque control

Gingivectomy

Scaling

Changing the drug

38 / 50

Category: Periodontics

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

Envelope

Triangular

Semilunar

Elliptical

39 / 50

Category: Periodontics

39) Which bacteria are associated with gingivitis?

Gram+

A.A

T. forsythia

Gram-

40 / 50

Category: Periodontics

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

Damage the bifurcation area

Cause sensitivity

Root fracture

Perforation in furcation area

41 / 50

Category: Periodontics

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

High chance of recurrence

Low chance of recurrence

Advanced periodontitis

Healing

42 / 50

Category: Periodontics

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

10 cigarettes

30 cigarettes

20 cigarettes

40 cigarettes

43 / 50

Category: Periodontics

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

Maxillary distobuccal root of 1st molar

2nd max molar

1st maxillary premolar

Lower molar

44 / 50

Category: Periodontics

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

OHI and mouthwash

Deep scaling

Pain management

Supra scaling and antibiotics

45 / 50

Category: Periodontics

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

20-30%

50-70%

30-50%

10-20%

46 / 50

Category: Periodontics

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

Wait and observe

Remove 2 mm more

Close and suture

Perform a flap

47 / 50

Category: Periodontics

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

RCT

Incision and drainage

Observe

Extraction

48 / 50

Category: Periodontics

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

Gingivoplasty

Scaling

Gingivectomy

Antibiotics

49 / 50

Category: Periodontics

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

Connective tissue graft

RMGIC

Flap surgery

Gingivectomy

50 / 50

Category: Periodontics

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

8%

12%

10%

5%

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