NDEB (Canadian) Latest Update 2025-2026 Exam 260 Questions with 100% Verified Correct Answers Guaranteed A+
- wks history of prolonged tooth pain to hot and cold
- days ago symptoms changed to moderate pain on biting with dull spontaneous ache
relieved by cold
Dx? - CORRECT ANSWER: chronic periradicular ascess
- yo, fever, malaise, cough, conjunctivitis, "runny nose", erythema, small bluish-white
macules on buccal mucosa - CORRECT ANSWER: measles (rubeola)
- yo with multiple well-defined multilocular radiolucencies of maxilla and mandible -
CORRECT ANSWER: cherubism
62 yo female, CD, never smoked, what kind of lesion is most likely to progress to SCC?
- CORRECT ANSWER: a smooth red patch of the mid posterior dorsal tongue
8yo, all primary molars present
cusp-to-cusp relationship on permanent M1s, what to do? - CORRECT ANSWER:
observe
- years old, anterior diastema, distally inclined maxillary incisors...what treatment? -
CORRECT ANSWER: no treatment necessary
a natural alkaloid obtained from opium - CORRECT ANSWER: codeine
a patient diagnosed with multiple mucosal neuromas should be further evaluated for the possibility of - CORRECT ANSWER: neoplasms of endocrine organs 1 / 3
a patient under corticosteroid therapy requires an extraction under LA. You would... -
CORRECT ANSWER: proceed with extraction w/o alteration of the corticosteroid
therapy
a radiographic exam of 10yo. Retention of primary teeth & presence of many unerupted
supernumerary teeth...what is this condition? - CORRECT ANSWER: cleidocranial
dysplasia (or dysostosis)
a severed artery during surgical procedure is best treated by - CORRECT ANSWER:
clamping with a hemostat
a single adjustment of an expansion screw in a removable appliance for dental arch
expansion will cause an expansion of how many mm? - CORRECT ANSWER: 0.25mm
abnormally large pulp chambers - CORRECT ANSWER: regional odontodysplasia
Abx of choice for periapical absces is - CORRECT ANSWER: Penicillin V
abx of choice for periradicular dental abscess is... - CORRECT ANSWER: Penicillin V
Ach - CORRECT ANSWER: - NT for both sympathetic & parasympathetic gang.
- both muscarinic & nicotinic actions
- rapidly hydrolysed in body by cholinesterase
acute PA abscess originating from a mand M3 generally points and drains in the.. -
CORRECT ANSWER: submandibular space
acute suppurative pulpitis, pain increases cold? - CORRECT ANSWER: no
- / 3
ADA type die stone used for PFM crown with PVS impression - CORRECT ANSWER:
Type IV
add this to give gold alloy white color - CORRECT ANSWER: palladium
administration of succinyl choline to patient deficient in serum cholinesterase would
result in - CORRECT ANSWER: prolonged apnea (suspension of external breathing)
adrenal corticosteroids does this... - CORRECT ANSWER: - cause retention of sodium and fluid
- decrease immune response
adrenal corticosteroids does this... - CORRECT ANSWER: reduce inflammation (think immunosuppression)
advantage of resin bonded bridges are... - CORRECT ANSWER: - improved aesthetics compare to traditional bridge
- tooth structure conservation
- short chair-side time
- economy
allergy to para-amino benoic acid derivatives, which LA can be used safely? which
cannot be used? - CORRECT ANSWER: cannot use esther. Use amide
anatomical structures making up inverted Y in maxillary PA... - CORRECT ANSWER: - floor of nasal fossa
- maxillary sinus border
ANB angle for Class II compare to Class I is (greater/smaller) - CORRECT ANSWER: greater
- / 3