Lebanon's dentistry colloquium exam, 2022 · Session 2

What is on the 2022 · Session 2 paper?

• Written: Wednesday 23 November 2022Source: Al-Markazia, 26 September 2022
• Questions in Enamel: all 120, from an official past paper, each explained in writing.

Endodontics most: 25 of the paper's 120 questions, then periodontology (25) and prosthodontics (19). Counted as the app tags them for its mocks.

• Endodontics25
• Periodontology25
• Prosthodontics19
• Operative & Materials18
• Anesthesia & Pharma10
• Oral Surgery7
• Pedo & Ortho4
• Radiology & Diagnosis1
• General11

Sorted by keyword, so a question counts once, under the subject it names most. “General” holds the rest.

What did the 2022 · Session 2 paper ask?

Five of the paper's 120 questions, each with the answer and our explanation. Questions are shown exactly as worded on the paper. The explanations are ours.

1. Sample 1 of 5 · Endodontics

   The term "Tug Back" is used to indicate:

   1. a,Good fit of accessory gutta percha point at the apical third
   2. b,Good fit of master gutta percha point at the apical third
   3. c,Good fit of accessory cone in the main body of the canal
   4. d,Good fit of the initial file at the apical third
   5. e,None of the above

   Show the answer

   Correct answer: b · Good fit of master gutta percha point at the apical third

   'Tug-back' describes the frictional resistance of a well-fitted master gutta-percha cone in the apical third.

2. Sample 2 of 5 · Endodontics

   What is the best view to detect a buccal perforation in an anterior tooth in CBCT?

   1. a,Coronal view
   2. b,Panoramic view
   3. c,Periapical view
   4. d,Sagittal view
   5. e,Axial view

   Show the answer

   Correct answer: d · Sagittal view

   A sagittal CBCT slice best shows a labial/buccal perforation in an anterior tooth, displaying the facial-palatal dimension along the root.

3. Sample 3 of 5 · Operative & Materials

   After the dentist has completed an etching procedure on a Class III composite preparation, the preparation becomes contaminated with saliva. In response, the dentist should do which of the following?

   1. a,Blow away the saliva with air, then proceed
   2. b,Rinse away the saliva with water, dry the preparation, then proceed
   3. c,Wipe away the saliva with a cotton pellet, rinse the preparation with water, dry it with air, then proceed
   4. d,Rinse away the saliva with water, dry the preparation with air, then repeat the etching procedure
   5. e,Continue to the next step without doing anything

   Show the answer

   Correct answer: d · Rinse away the saliva with water, dry the preparation with air, then repeat the etching procedure

   If an etched preparation is saliva-contaminated, the dentist must rinse, dry, and re-etch, because contamination ruins the etched surface.

4. Sample 4 of 5 · Endodontics

   Which of the following obturation techniques is suitable for cases with internal resorption?

   1. a,Lateral compaction technique
   2. b,Chemically softened gutta percha technique
   3. c,Inverted cone technique
   4. d,Thermoplasticized injectable gutta-percha technique
   5. e,Solid core carrier technique

   Show the answer

   Correct answer: d · Thermoplasticized injectable gutta-percha technique

   Irregular internal-resorption defects are best obturated with a thermoplasticized injectable gutta-percha technique that flows into the irregular space.

5. Sample 5 of 5 · Oral Surgery

   Immediately after the extraction of a tooth, postoperative instructions should include: (1) analgesics. (2) regular diet. (3) application of cold. (4) frequent rinsing of the socket.

   1. a,(1) (2) (3)
   2. b,(1) and (3)
   3. c,(2) and (4)
   4. d,(4) only
   5. e,All of the above

   Show the answer

   Correct answer: b · (1) and (3)

   Immediate post-extraction instructions include analgesics and applying cold to limit swelling; vigorous rinsing is avoided early so the clot is preserved — (1) and (3).

Is there a PDF of the 2022 · Session 2 paper?

No PDF here: Enamel has all 120 questions of this paper, each explained, in the app.

In the app the paper is a set of its own: answer each question, then read the key and the written explanation.