NDEB EXAM, PRACTICE EXAM AND STUDYGUIDE NEWEST 2025 ACTUAL EXAM COMPLETE QUESTIONS AND CORRECT DETAILED AWERS (VERIFIED ANSWERS) |100% GUARANTEED PASS!!

NDEB EXAM, PRACTICE EXAM AND STUDYGUIDE
NEWEST 2025 ACTUAL EXAM COMPLETE QUESTIONS
AND CORRECT DETAILED AWERS (VERIFIED ANSWERS)
|100% GUARANTEED PASS!!


The smear layer present on the root canal wall after
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cleaning and shaping is best removed by using
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A. EDTA.

B. hydrogenperoxide. f




C. chlorhexidine.

D. isopropylalcohol. - ANSWER--A. EDTA. f f f f




The primaryetiological factor associatedwith
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periodontal disease is
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A. bacterialplaque. f




B. calculus.

C. diabetes mellitus. f




D. tooth mobility.
f




E. smoking. -ANSWER--A. bacterial plaque.
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Odontoblast gapjunctions f f




A. adhere the cells to one another.
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B. attach the cells to the basement membrane.
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C. seal off the dentin from the pulp.
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D. permitlateral cell-cell communication. -ANSWER--D. permitlateral cell-cellcommunication.
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The inorganic ionthat is implicated inprimary
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hypertension is
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A. sodium.

, NDEB EXAM, PRACTICE EXAM AND STUDYGUIDE f f f f f




f NEWEST2025 ACTUALEXAMCOMPLETE QUESTIONS f f f f f




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f f f f f




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B. fluoride.

C. potassium.

D. magnesium. -ANSWER--A. sodium. f f f




Which type of malocclusion should becorrectedas
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early as possible?
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A. Class II Division 1 associated with ananterior
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open bite.
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B. Class IIDivision2 associatedwith an
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increased anterior overbite.
f f f




C. Class III associated with an anterior open bite.
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D. Cross-bite associatedwith a functional shift of f f f f f f




the mandible from initial contact to maximum
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intercuspation.
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E. Anterior open bite associated with a lip or digit f f f f f f f f




sucking habit. - ANSWER--D. Cross-bite associated with a functional shift of the mandible from initial contact to
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maximum intercuspation.
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A patientwith completedentures complains of
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clicking. The most common causes are
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A. reducedverticaldimensionandimproperly f f f f




balanced occlusion.
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B. excessiveverticaldimensionandpoor f f f f




retention.
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C. use of too large a posterior tooth and too little
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horizontal overlap.
f f

, NDEB EXAM, PRACTICE EXAM AND STUDYGUIDE f f f f f




f NEWEST2025 ACTUALEXAMCOMPLETE QUESTIONS f f f f f




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f f f f f




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D. improper relation of teeth to the ridge and f f f f f f f




excessive anterior vertical overlap. - ANSWER--B. excessive vertical dimension and poor
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retention.
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Ideally, within how many hours shouldone receive
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medical attention for percutaneous exposure to
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blood borne pathogens?
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A. 2.

B. 4.

C. 6.

D. 8. - ANSWER--A. 2.
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Whichof the following drugs does NOT cause gingival
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enlargement?
f




A. Nifedipine.
B. Cyclosporine.

C. Phenytoin.

D. Prednisolone. -ANSWER--D. Prednisolone. f f f




Themaximumrecommendednumber of 1.8ml
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cartridges of 2% lidocaine with
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epinephrine 1:100,000 that may be safely f f f f f




administeredtoa 17kg child is approximately
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A. 0.5.

B. 1.

, NDEB EXAM, PRACTICE EXAM AND STUDYGUIDE f f f f f




f NEWEST2025 ACTUALEXAMCOMPLETE QUESTIONS f f f f f




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f f f f f




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C. 1.5.

D. 2.

E. 2.5. - ANSWER--D. 2.
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Whichof the following conditions may developas a
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result of juvenile diabetes mellitus?
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A. Ataxia.

B. Aphasia.

C. Deafness.

D. Blindness.

E. Motor paralysis. -ANSWER--D. Blindness.
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Whichof the following is the most predictable
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indicator of periodontal stability?
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A. Patient compliancewith maintenance visit.
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B. Gingivalinflammation. f




C. Plaqueindex. f




D. Absence of bleeding onprobing. - ANSWER--D. Absence of bleeding on probing.
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Whichconditionis associated with elevatedserum
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alkaline phosphatase and elevated urinary
f f f f f




hydroxyproline levels?
f f




A. Fibrous dysplasia. f




B. Paget disease. f




C. Sjögrensyndrome. f