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100+ Free Korean Dental Licensing Exam Practice Questions

Pass your Korean Dental Licensing Examination (Dentist National Examination) exam on the first try — instant access, no signup required.

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91.4% for the 2025 77th examination announced by KHPLEI (783 examinees; 716 passed). Pass Rate
100+ Questions
100% Free
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Question 1
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Topical fluoride helps prevent caries mainly by which action?

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2026 Statistics

Key Facts: Korean Dental Licensing Exam Exam

321

Written CBT items listed by KHPLEI

KHPLEI 2025-2026 CBT written exam notice

305 min

Written CBT testing time

KHPLEI 2025-2026 CBT written exam notice

300 pts

Written CBT score total

KHPLEI written content range and CBT schedule

220,000 KRW

2026 written CBT application fee

KHPLEI 2025-2026 CBT written exam notice

950,000 KRW

Latest posted practical exam fee

KHPLEI 2027 practical examination notice

91.4%

2025 77th exam pass rate announced by KHPLEI

KHPLEI 2025 pass announcement

KHPLEI lists the Korean dentist written exam as a 321-item CBT over 305 minutes, scored as 300 points, with subject counts covering oral and maxillofacial surgery, restorative and endodontic dentistry, prosthodontics, orthodontics, pediatric dentistry, radiology, periodontology, oral biology, health law, preventive dentistry, oral medicine, pathology, and materials. The latest official practical notice lists result and process evaluation tasks and a 950,000 KRW practical fee. Written passing requires 60% overall and 40% in each subject grouping, and final licensure requires both written and practical passes.

Sample Korean Dental Licensing Exam Practice Questions

Try these sample questions to test your Korean Dental Licensing Exam exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1A mandibular first molar requires extraction under local anesthesia. Which block is usually needed to anesthetize the pulpal tissues of that tooth?
A.Inferior alveolar nerve block
B.Posterior superior alveolar nerve block
C.Greater palatine nerve block
D.Infraorbital nerve block
Explanation: The inferior alveolar nerve supplies pulpal sensation to mandibular posterior teeth before it enters the mandibular canal. Buccal soft tissue often also needs long buccal infiltration, but the pulpal block for a mandibular molar is the inferior alveolar block.
2A patient with facial swelling from an odontogenic infection has fever and poorly controlled diabetes. What is the best initial management principle?
A.Delay treatment until the swelling drains spontaneously
B.Establish drainage and source control while coordinating medical risk management
C.Prescribe analgesics only because dental infection is usually self-limited
D.Perform elective implant placement before treating the infection
Explanation: Odontogenic infection management is based on source control, drainage when indicated, appropriate antimicrobial use, and attention to systemic risk. Poorly controlled diabetes increases infection severity and healing risk, so medical coordination is part of safe care.
3Severe throbbing pain begins several days after extraction, and the socket appears empty with exposed bone but little swelling. Which complication best fits this picture?
A.Dry socket, also called alveolar osteitis
B.Acute suppurative osteomyelitis
C.Immediate allergic reaction to local anesthetic
D.Ludwig angina
Explanation: Alveolar osteitis classically presents 2 to 4 days after extraction with loss or breakdown of the clot, exposed socket bone, and severe pain. Management is palliative irrigation and medicated dressing, not curettage of the socket in routine cases.
4During extraction of a maxillary first molar, a small oroantral communication is suspected. Which instruction is most appropriate immediately after closure or conservative management?
A.Forcefully rinse through the socket to keep it clean
B.Avoid nose blowing and sneezing with the mouth closed
C.Use a straw frequently to test whether air passes through
D.Begin vigorous socket curettage at home
Explanation: A suspected sinus communication should be protected from pressure changes that can enlarge the opening or disrupt the clot. Avoiding nose blowing, closed-mouth sneezing, smoking, and suction helps protect the sinus and surgical site.
5A partially erupted mandibular third molar has inflamed operculum, trismus, and fever. What does this presentation most strongly suggest?
A.Pericoronitis requiring local debridement, infection control, and definitive management of the tooth
B.Normal eruption discomfort needing no evaluation
C.Aphthous ulcer unrelated to the third molar
D.A cyst that should be observed without infection treatment
Explanation: Pericoronitis occurs around a partially erupted tooth, especially a mandibular third molar, when the operculum traps plaque and debris. Fever and trismus indicate more significant infection, so local treatment, drainage when needed, antibiotics for systemic involvement, and later extraction or operculectomy are considered.
6Before extracting a tooth, a patient reports current antiresorptive therapy for cancer-related bone metastases. What is the key reason this history changes the plan?
A.It increases risk of medication-related osteonecrosis of the jaw
B.It means local anesthesia will not work
C.It proves the tooth cannot be infected
D.It eliminates the need for informed consent
Explanation: High-dose antiresorptive or antiangiogenic therapy is a major risk factor for medication-related osteonecrosis of the jaw after dentoalveolar surgery. The dentist should assess indication, route, duration, alternatives to extraction, infection status, and coordination with the medical team.
7Bilateral submandibular swelling, floor-of-mouth elevation, dysphagia, and a muffled voice develop from a mandibular molar infection. What is the first priority?
A.Airway assessment and urgent referral or emergency management
B.Routine polishing before prescribing antibiotics
C.Whitening consultation after the swelling resolves
D.Observation for one week because the infection is bilateral
Explanation: These findings suggest Ludwig angina or a deep neck space infection, where airway compromise can develop quickly. Airway, drainage, antibiotics, and hospital-level care take priority over routine dental treatment.
8Which patient factor most strongly supports limiting epinephrine-containing local anesthetic and obtaining medical input before elective oral surgery?
A.Stable seasonal allergy controlled with antihistamine
B.Recent myocardial infarction with unstable cardiac status
C.History of treated dental caries
D.Mild enamel fluorosis
Explanation: Unstable or recent serious cardiovascular disease changes the risk-benefit balance for vasoconstrictors and elective surgery. Pain and endogenous catecholamine release also matter, so the plan should be individualized with medical consultation and careful dosing.
9In a simple forceps extraction, what is the main purpose of controlled luxation before delivery of the tooth?
A.To expand the alveolar socket and sever periodontal ligament fibers
B.To sterilize the root surface chemically
C.To intentionally fracture the cortical plate
D.To remove all granulation tissue before the tooth moves
Explanation: Luxation expands socket bone and disrupts periodontal ligament attachment so the tooth can be delivered with less force. Controlled movement reduces root fracture and unnecessary bone trauma.
10A patient on an anticoagulant has mild persistent oozing after extraction but is otherwise stable. What is usually the first local approach?
A.Apply firm pressure with gauze and use local hemostatic measures as needed
B.Tell the patient to stop all anticoagulants permanently
C.Probe the socket repeatedly to identify every bleeding point
D.Prescribe antibiotics as the sole hemostatic treatment
Explanation: Most dental post-extraction oozing is managed first with local measures such as pressure, sutures, oxidized cellulose, collagen sponge, or tranexamic acid when appropriate. Anticoagulant interruption is a medical decision and often increases thromboembolic risk if done casually.

About the Korean Dental Licensing Exam Exam

National dentist licensure examination for Korea, administered by KHPLEI/Kuksiwon. The written CBT tests 13 dental and health-law subjects, while the practical exam evaluates clinical reasoning, communication, infection control, radiography, periodontal examination, restorative and endodontic skills, oral surgery, prevention, pediatric and orthodontic skills, and prosthodontic preparation.

Assessment

Written CBT plus practical examination. The written exam has four sessions totaling 321 items over 305 minutes. The practical exam includes result evaluation and process evaluation tasks.

Time Limit

Written CBT: 305 minutes. Latest practical notice: result evaluation includes three technical tasks over 120 minutes plus one 10-minute clinical task; process evaluation cycles include one technical task and one composite task.

Passing Score

Written: at least 60% overall and at least 40% in each KHPLEI subject grouping; final licensure requires both written and practical passes. Practical passing score is set through the official standard-setting process.

Exam Fee

Written CBT: 220,000 KRW; practical: 950,000 KRW in the 2027 practical examination notice. Verify current cycle fees with KHPLEI before applying. (Korea Health Personnel Licensing Examination Institute (KHPLEI/Kuksiwon))

Korean Dental Licensing Exam Exam Content Outline

35 points / 11.7%

Oral and Maxillofacial Surgery

Extraction, infection, sinus and salivary disease, trauma, cysts and tumors, local anesthesia, sedation, emergencies, and preprosthetic or reconstructive surgery.

35 points / 11.7%

Restorative Dentistry and Endodontics

Operative diagnosis, restorative material selection, tooth preparation, adhesive and indirect restorations, pulp diagnosis, canal preparation, obturation, trauma, and endodontic surgery.

35 points / 11.7%

Prosthodontics

Complete dentures, removable partial dentures, fixed prosthodontics, implant prostheses, occlusion, impressions, try-in, delivery, and maintenance.

29 points / 9.7%

Orthodontics

Growth, occlusal development, malocclusion diagnosis, biomechanics, interceptive treatment, adult orthodontics, complications, retention, and relapse.

23 points / 7.7%

Pediatric Dentistry

Child development, behavior guidance, primary and immature permanent tooth pulp therapy, pediatric trauma, pediatric oral surgery, occlusal management, and special care dentistry.

23 points / 7.7%

Oral Radiology

Radiation physics and protection, digital imaging, intraoral and special imaging, infection control, CBCT justification, and oral-maxillofacial image interpretation.

23 points / 7.7%

Periodontology

Periodontal tissues, pathogenesis, diagnosis, instruments, systemic links, nonsurgical and surgical therapy, implant peri-tissue disease, and maintenance.

21 points / 7.0%

Oral Biology

Oral anatomy, histology, physiology, biochemistry, pharmacology, microbiology, immunity, biofilm, caries and periodontal microbiology, and infection control.

20 points / 6.7%

Health Law and Regulations

Korean health-law subjects listed by KHPLEI, including Medical Service Act, infection prevention, quarantine, AIDS prevention, National Health Insurance, regional public health, narcotics control, emergency medical services, health promotion, blood management, and life-sustaining treatment law.

17 points / 5.7%

Preventive and Community Dentistry

Caries and periodontal risk assessment, fluoride, sealants, preventive plans, oral health education, nutrition, epidemiology, oral health programs, and public oral health systems.

13 points / 4.3%

Oral Medicine

History, examination, diagnostic adjuncts, oral soft-tissue disease, salivary disease, medically complex patients, forensic dentistry, ethics, dental disputes, TMD, orofacial pain, and sleep-related oral conditions.

13 points / 4.3%

Oral Pathology

Tissue injury, developmental disorders, immune disease, infection, inflammation, systemic disease pathology, differential diagnosis, benign and malignant lesions, and clinical case analysis.

13 points / 4.3%

Dental Materials

Material properties, direct and indirect restorative materials, impression and laboratory materials, instruments, and graft materials.

How to Pass the Korean Dental Licensing Exam Exam

What You Need to Know

  • Passing score: Written: at least 60% overall and at least 40% in each KHPLEI subject grouping; final licensure requires both written and practical passes. Practical passing score is set through the official standard-setting process.
  • Assessment: Written CBT plus practical examination. The written exam has four sessions totaling 321 items over 305 minutes. The practical exam includes result evaluation and process evaluation tasks.
  • Time limit: Written CBT: 305 minutes. Latest practical notice: result evaluation includes three technical tasks over 120 minutes plus one 10-minute clinical task; process evaluation cycles include one technical task and one composite task.
  • Exam fee: Written CBT: 220,000 KRW; practical: 950,000 KRW in the 2027 practical examination notice. Verify current cycle fees with KHPLEI before applying.

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

Korean Dental Licensing Exam Study Tips from Top Performers

1Use the KHPLEI written subject counts to allocate study time instead of treating all topics equally.
2Practice mixed clinical diagnosis: many official content areas combine history, examination, imaging, risk assessment, and treatment planning.
3For oral biology, remember that KHPLEI lists many items but scores them at 0.5 point each, so review breadth efficiently.
4Study Korean health-law topics from the current listed statutes and check the law version in force on the examination date.
5For the practical exam, rehearse patient communication, infection control, radiography setup, periodontal examination, endodontic access, restorative preparation, simple extraction, suturing, and oral hygiene instruction as integrated tasks.
6Review released KHPLEI past-question material for style and timing, but build your own explanations rather than memorizing copied answers.

Frequently Asked Questions

Does the Korean Dental Licensing Examination exist?

Yes. KHPLEI/Kuksiwon publishes dentist national examination pages, written CBT notices, practical examination notices, content ranges, practical objectives, sample practical material, past written questions, and pass announcements.

How many questions are on the written exam?

KHPLEI lists 321 written CBT items scored as 300 points. Oral biology has 42 items worth 0.5 point each; other written items are worth 1 point.

How long is the written exam?

The official 2025-2026 CBT schedule lists four written sessions totaling 305 minutes, with a 60-minute lunch break after session 2.

What score is needed to pass?

For the written exam, KHPLEI lists at least 60% of total score and at least 40% in each specified subject grouping. Final licensure requires passing both written and practical components.

Are official past questions available?

KHPLEI posts past written-question PDFs and final answers for examinee reference, with copyright restrictions and some multimedia or image items withheld. This bank uses original questions and does not copy official items.

What should applicants verify before applying?

Applicants should verify the current KHPLEI notice for dates, fees, eligibility, document requirements, exam locations, practical-cycle assignment, and any changes to written CBT or practical examination policy.