Free NDEB Clinical Dentistry Questions and Answers — Questions and Answers
Question 1: Which of the following is the maximum daily analgesic dose of ibuprofen for a healthy adult?
- 2,400 mg. (Correct answer)
- 4,800 mg.
- 1,200 mg.
- 3,200 mg.
- 4,000 mg.
Correct answer: 2,400 mg.
Explanation: <br> The maximum daily analgesic dose of ibuprofen for a healthy adult is typically 2,400 mg, taken in divided doses throughout the day. Exceeding this dosage can increase the risk of adverse effects such as gastrointestinal irritation, renal impairment, and cardiovascular events.
Question 2: A dental implant analogue is used ______:
- in the final impression.
- to plan implant surgery.
- in making a master cast. (Correct answer)
- as a teaching aid for patients.
Correct answer: in making a master cast.
Explanation: <br> A dental implant analogue is used in making a master cast, which is a precise replica of the patient's oral structures, including the dental implants. This master cast is essential for fabricating prosthetic restorations that fit accurately onto dental implants.
Question 3: A patient who has multiple smooth, irregular zones of erythema surrounded by a white border on the dorsal and lateral ventral surfaces of the tongue most likely has ________:
- raspberry tongue.
- hairy tongue.
- geographic tongue. (Correct answer)
- fissured tongue.
Correct answer: geographic tongue.
Explanation: <br> The geographic tongue presents as multiple smooth, irregular zones of erythema (red patches) surrounded by a white border on the dorsal and lateral ventral surfaces of the tongue. It's a benign condition characterized by transient inflammatory changes in the surface of the tongue.
Question 4: Which local anaesthetic formulation should be used to achieve prolonged pain relief for a patient requiring a pulpectomy for tooth 3.6?
- Lidocaine 2%, with epinephrine 1:100,000
- Prilocaine 4%, with epinephrine 1:200,000
- Mepivacaine 3% plain
- Articaine 4%, with epinephrine 1:100,000
- Bupivacaine 0.5%, with epinephrine 1:200,000 (Correct answer)
Correct answer: Bupivacaine 0.5%, with epinephrine 1:200,000
Explanation: <br> Bupivacaine is a long-acting local anesthetic that provides prolonged pain relief, making it suitable for procedures requiring extended duration of anesthesia, such as a pulpectomy for tooth 3.6. The addition of epinephrine helps to prolong the anesthetic effect and minimize bleeding.
Question 5: Which of the following is the most appropriate luting agent for the cementation of zirconia-based crowns?
- Zinc phosphate
- Zinc polyacrylate
- Resin-modified glass ionomer (Correct answer)
- Non-eugenol zinc oxide
Correct answer: Resin-modified glass ionomer
Explanation: <br> Resin-modified glass ionomer cement is commonly used for the cementation of zirconia-based crowns due to its good adhesion to both zirconia and tooth structure, as well as its favorable physical properties and biocompatibility.
Question 6: A healthy patient presents with multiple aphthous ulcers on the labial mucosa. The most appropriate initial management is ________ :
- systemic antibiotics.
- topical antifungals.
- systemic antivirals.
- topical corticosteroids. (Correct answer)
Correct answer: topical corticosteroids.
Explanation: <br> Topical corticosteroids are the most appropriate initial management for multiple aphthous ulcers on the labial mucosa. They help reduce inflammation, pain, and healing time associated with aphthous ulcers.
Question 7: Which of the following is the most likely result of an acetaminophen overdose?
- Nephrotoxicity
- Hepatotoxicity (Correct answer)
- Cardiotoxicity
- Gastrotoxicity
Correct answer: Hepatotoxicity
Explanation: <br> An acetaminophen overdose is most likely to result in hepatotoxicity, which refers to liver damage or toxicity. Acetaminophen is primarily metabolized in the liver, and an overdose can overwhelm the liver's ability to process it, leading to liver damage or failure.
Question 8: The most appropriate management for recurrent pericoronitis of a mandibular third molar with inadequate arch space is _______:
- operculectomy.
- extraction of the tooth. (Correct answer)
- local antibiotic therapy.
- systemic antibiotic therapy
Correct answer: extraction of the tooth.
Explanation: <br> The most appropriate management for recurrent pericoronitis of a mandibular third molar with inadequate arch space is the extraction of the tooth. Removing the third molar eliminates the source of infection and prevents future episodes of pericoronitis.
Question 9: The internal line angles of cavity preparations for composite resin or amalgam restorations should be ________:
- rounded to reduce stress concentration. (Correct answer)
- sharp to improve retention of the restoration.
- rounded to conserve tooth structure
- sharp to improve the adaptation of restorative materials.
Correct answer: rounded to reduce stress concentration.
Explanation: <br> The internal line angles of cavity preparations for composite resin or amalgam restorations should be rounded to reduce stress concentration, which helps prevent fracture of the restoration and tooth structure.
Question 10: Flaps in minor oral surgery should _______ :
- be sutured over intact bone
- be narrower at their base.
- be split-thickness.
- have releasing incisions (Correct answer)
Correct answer: have releasing incisions
Explanation: <br> Flaps in minor oral surgery should have releasing incisions to enhance their mobility and facilitate tension-free closure, which promotes optimal healing and reduces the risk of complications such as flap necrosis.
Question 11: Which of the following analgesics is most appropriate for the management of dental pain associated with inflammation?
- Naproxene (Correct answer)
- Tramadol
- Codein
- Acetaminophen
Correct answer: Naproxene
Explanation: <br> Naproxene is a non-steroidal anti-inflammatory drug (NSAID) that is effective for managing dental pain associated with inflammation. It helps reduce pain and inflammation by inhibiting prostaglandin synthesis, making it a suitable choice for dental pain relief.
Free NDEB Clinical Dentistry Questions and Answers
Which of the following is the maximum daily analgesic dose of ibuprofen for a healthy adult?