Periodontics SDLE MCQ | Part 1

DentQuiz SDLE Mock Exam Instruction

To mark a question and come back to it later, click the Bookmark icon.
For the best experience, use a computer and switch to full screen button (from the top left corner).
You can review and change your answers before clicking Next.
Explanations will appear after each question to help you understand the correct answer.
Your results will be shown right after you finish the exam.
This is a fresh attempt — previous answers or bookmarks won't be saved.
The source of the questions and answers is recent Rafee’ Al-Maqam files. Special thanks to رفيع المقام.
Answers are based on colleagues best efforts and may not be 100% accurate. If you believe an answer is incorrect, please click the Report button to let us know.

Please fill in your details to continue

NameEmailPhone Number

1 / 50

Category: Periodontics

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

Vertical bone loss

Horizontal bone loss

Interdental bone loss

Interradicular bone loss

2 / 50

Category: Periodontics

2) Which bacteria are associated with periodontitis?

T. forsythia

S. mutans

A.A

P. gingivalis

3 / 50

Category: Periodontics

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

Osteocyte

Osteoclast

Fibroblast

Osteoblast

4 / 50

Category: Periodontics

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

Chemical

Mechanical

Biological

Physical

5 / 50

Category: Periodontics

5) What is found in healthy gingival tissue?

Severe lymphocytes

Mild lymphocytes

Moderate lymphocytes

Plasma cells

6 / 50

Category: Periodontics

6) 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 4

Class 3

7 / 50

Category: Periodontics

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

Explorer

Hoe

Chisel

Mirror

8 / 50

Category: Periodontics

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

7.2 mm

8.0 mm

5.8 mm

6.6 mm

9 / 50

Category: Periodontics

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

Allergen identification and removal

Gingivectomy

Plaque control

Antibiotics

10 / 50

Category: Periodontics

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

Poor oral hygiene

Calculus buildup

Trauma

Open contact

11 / 50

Category: Periodontics

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

1st maxillary premolar

2nd max molar

Lower molar

Maxillary distobuccal root of 1st molar

12 / 50

Category: Periodontics

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

Gingivectomy

Flap surgery

Connective tissue graft

RMGIC

13 / 50

Category: Periodontics

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

Localized papillary gingivitis

Localized marginal

Generalized gingivitis

Localized diffuse

14 / 50

Category: Periodontics

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

Roughness of contact

Manual dexterity

Comfort

Proximal contact tightness

15 / 50

Category: Periodontics

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

Proximal contact tightness

Manual dexterity

Patient preference

Roughness of contact

16 / 50

Category: Periodontics

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

Remove 2 mm more

Wait and observe

Close and suture

Perform a flap

17 / 50

Category: Periodontics

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

Biologic invasion

Furcation invasion

Root fracture

Pulp exposure

18 / 50

Category: Periodontics

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

40 cigarettes

20 cigarettes

30 cigarettes

10 cigarettes

19 / 50

Category: Periodontics

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

Water flosser

Superfloss

Interdental brush

Dental tape

20 / 50

Category: Periodontics

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

Antibiotics

Scaling

Gingivectomy

Gingivoplasty

21 / 50

Category: Periodontics

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

Pain management

OHI and mouthwash

Deep scaling

Supra scaling and antibiotics

22 / 50

Category: Periodontics

22) What is the modified pen grasp used for?

Flap elevation

Scaling

Probing

Suturing

23 / 50

Category: Periodontics

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

Localized stage I grade A

Localized stage II grade B

Generalized stage I grade A

Generalized stage II grade B

24 / 50

Category: Periodontics

24) What is observed in healthy gingiva histologically?

Plasma cells

No inflammatory cells

Abundant PMNs

Mild lymphocytes

25 / 50

Category: Periodontics

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

Perforation in furcation area

Damage the bifurcation area

Cause sensitivity

Root fracture

26 / 50

Category: Periodontics

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

1st maxillary premolar

Maxillary 1st molar

2nd max molar

Mandibular molar

27 / 50

Category: Periodontics

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

Developmental defect

Caries

Vertical root fracture

Trauma

28 / 50

Category: Periodontics

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

Triangular

Elliptical

Semilunar

Envelope

29 / 50

Category: Periodontics

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

Gingivitis

Recession

Periodontitis

Chronic inflammation and gingival enlargement

30 / 50

Category: Periodontics

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

High chance of recurrence

Low chance of recurrence

Healing

Advanced periodontitis

31 / 50

Category: Periodontics

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

SRP and OHI every 6 months

SRP and OHI every 2 months

SRP and OHI every 3 weeks

SRP and antibiotics

32 / 50

Category: Periodontics

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

2nd max molar

1st mand molar

1st max molar

2nd mand molar

33 / 50

Category: Periodontics

33) What is ridge mapping used for?

Evaluating tooth mobility

Assessing periodontal pockets

Determining ridge height and width

Measuring bone density

34 / 50

Category: Periodontics

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

Disease control

Take impression

Crown lengthening

Extraction

35 / 50

Category: Periodontics

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

Furcation plasty

GTR

Root resection

Tunnel preparation

36 / 50

Category: Periodontics

36) Which bacteria are associated with gingivitis?

A.A

Gram+

T. forsythia

Gram-

37 / 50

Category: Periodontics

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

Prostaglandin

Histamine

Lysozyme

Lipoxins

38 / 50

Category: Periodontics

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

Extraction

Antibiotics

Scaling and root planning

Splinting

39 / 50

Category: Periodontics

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

Veneers

Crown lengthening alone

Crown lengthening and crown

Whitening

40 / 50

Category: Periodontics

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

10-20%

30-50%

20-30%

50-70%

41 / 50

Category: Periodontics

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

Grade 4

Grade 2

Grade 3

Grade 1

42 / 50

Category: Periodontics

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

10%

12%

8%

5%

43 / 50

Category: Periodontics

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

Calculus

Plaque

Occlusal trauma

Poor restoration

44 / 50

Category: Periodontics

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

Changing the drug

Consult physician and plaque control

Scaling

Gingivectomy

45 / 50

Category: Periodontics

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

Extraction

RCT

Incision and drainage

Observe

46 / 50

Category: Periodontics

46) What happens to gingival thickness with increasing age?

Decrease attached gingiva

Increase gingival thickness

Increase attached gingiva

Decrease gingival thickness

47 / 50

Category: Periodontics

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

Tooth mobility

Loss of coronal tooth

Exposure of root surface

Increased pocket depth

48 / 50

Category: Periodontics

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

Veneers

Crown lengthening alone

Crown lengthening and crown

Orthodontics

49 / 50

Category: Periodontics

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

Persistent

Primary

Combined

Secondary

50 / 50

Category: Periodontics

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

Pain management

Supracrestal scaling and antibiotics

Oral hygiene and mouthwash

Deep scaling

Your score is

The average score is 73%

0%

Please rate this exam and leave a comment with any notes or suggestions.

Anonymous feedback

Thank you for your feedback

Report a question

Related Articles

Periodontics SDLE MCQ | Part 4

Periodontics SDLE MCQ | Part 3

Periodontics SDLE MCQ | Part 2

Leave a Reply Cancel reply