NBDHE Exam Version 2 / National Board Dental Hygiene Examination Newest 2025/2026 Complete Questions And Correct Detailed Answers (Verified Answers) |Brand New Version!!

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NBDHE Exam Version 2 / National Board Dental

HygieneExaminationNewest2025/2026Complete

QuestionsAnd CorrectDetailedAnswers(Verified

Answers) |Brand New Version!!



A radiographshowswidenedperiodontalligamentspaceand tooth mobility.

Which condition is most likely?

A. Pulp necrosis

B. Periodontalabscess

C. Trauma from occlusion

D. Periapicalcyst
Answer:C




Which fluoridecompoundis mostcommonlyusedin communitywater

fluoridation?

A. Sodiumfluoride
B. Sodiumsilicofluoride

C. Stannousfluoride
D. Hydrofluorosilicicacid

,Answer:D

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Which typeof bacteriainitiatesdentalcaries?
A. Streptococcusmutans
B. Lactobacillusacidophilus
C. Actinomycesisraelii

D. Porphyromonasgingivalis
Answer:A

Which stageof periodontaldiseaseis characterizedby apicalmigration of the

junctional epithelium?

A. Gingivitis
B. Initial lesion
C. Establishedlesion

D. Periodontitis
Answer:D




Which drug is mostlikely to causegingival hyperplasia?

A. Nifedipine
B. Metformin
C. Hydrochlorothiazide

D. Atenolol
Answer:A

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Which instrumentis bestsuitedfor scalinglingual anteriorteeth?
A. Gracey1/2
B. Gracey11/12
C. Gracey13/14

D. Universal4R/4L
Answer:A

The recommendedbrushingmethodfor childrenunder6 yearsis:
A. Bass

B. Charter’s
C. Fones
D. ModifiedStillman
Answer:C




Which conditionis moststronglyassociatedwith Epstein–Barr virus?
A. Oral candidiasis
B. Hairy leukoplakia

C. Kaposi’ssarcoma
D. Pemphigusvulgaris
Answer:B