Multiple-choice questions to test your knowledge of dentistry.
Extract
[...] Increase dose to compensate for interaction - C. Reduce dose (e.g., to 0.125 mg) - D. Avoid triazolam and give diazepam instead Answer: C [Pharmacology - Adverse Drug Effects ? Gingival Pigmentation] : A patient presents with bluish-grey discoloration of the anterior gingiva. He is on long-term medication for hypertension and hair loss. Which drug is most likely responsible for this gingival pigmentation? - A. Amlodipine - B. Minocycline - C. Minoxidil - D. Phenytoin Answer: C [Pharmacology - Analgesics ? [...]
[...] Use of a low viscosity impression material D. Insufficient pressure during the impression procedure Answer: B What is considered the most accurate method to capture the necessary data for the fabrication of a complete denture using a CAD/CAM workflow? A. Scanning the definitive cast B. Scanning soft tissue (intraoral scan) C. Scanning the impression D. A combination of intraoral and extraoral scanning Answer: B After making a final impression with an irreversible hydrocolloid (alginate) and pouring it with dental stone, what is the recommended minimum time to wait before separating the cast from the impression to ensure optimal surface quality and strength of the gypsum? [...]
[...] Only upon patient request Answer: C 15. Prosthodontics (Fixed) 1. When bonding a zirconia crown, what surface treatment is essential for chemical adhesion? ? A. Air abrasion / air blasting ? B. Acid etching ? C. Silanization ? D. Electropolishing Answer: A Rationale: While air abrasion does increase surface area for micromechanical retention, its primary role in modern bonding protocols is to clean and activate the zirconia surface. This makes it more receptive to the chemical bond formed by adhesive resin cements containing the 10-MDP monomer. [...]
[...] Extraction Answer: B During root canal treatment of a molar with a curved canal, a file fragment separates in the apical third in the later stages of cleaning and shaping. The canal was already patent to the apex. What is the most appropriate next step in management? A. Attempt to bypass the instrument B. Obturate and monitor C. Retrieve surgically D. Apicectomy Answer: B Electronic apex locators can provide inaccurate readings under certain clinical conditions. Which of the following is least likely to cause an error? A. Contact with a metallic restoration B. [...]
[...] Centric relation interferences B. Working (laterotrusive) side interferences C. Protrusive interferences D. Non-working (mediotrusive) side interferences Answer: D. Non-working (mediotrusive) side interferences [Prosthodontics (Fixed) - Tooth Preparation ? Finish Lines] A dentist is preparing a tooth for a pressed lithium disilicate crown. The dentist creates a shoulder margin but then adds a bevel to the cavosurface angle. What is the most likely negative consequence of placing a beveled margin for this type of restoration? A. It will increase the retention of the crown. [...]
