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Key Facts: Cambodia Dentistry Exit Exam Exam

6 professions

SPESHP names general medicine, dentistry, pharmacy, nursing, midwifery, and laboratory technology among national competency-based exit examinations

https://documents1.worldbank.org/curated/en/668861591063363140/pdf/Cambodia-Strengthening-Pre-Service-Education-System-for-Health-Professionals-Project.pdf

Free 100-question English MCQ practice for Cambodia's national dentistry exit exam. Independent study aid, not an official NECHS paper or OSCE simulation.

Sample Cambodia Dentistry Exit Exam Practice Questions

Try these sample questions to review concepts for the Cambodia Dentistry Exit Exam exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1The complete primary (deciduous) human dentition consists of how many teeth?
A.32 teeth
B.24 teeth
C.28 teeth
D.20 teeth
Explanation: The primary dentition comprises 20 teeth: 8 incisors, 4 canines, and 8 molars, with no premolars. Each quadrant contains a central incisor, a lateral incisor, a canine, and two molars. Recognizing this count is foundational for paediatric charting, space analysis, and distinguishing primary from mixed or permanent dentitions.
2The inferior alveolar nerve enters the mandible through which foramen?
A.Mental foramen
B.Mandibular foramen
C.Infraorbital foramen
D.Foramen ovale
Explanation: The inferior alveolar nerve, a branch of the mandibular division of the trigeminal nerve, enters the mandibular canal at the mandibular foramen on the medial surface of the ramus. This landmark is the target of the inferior alveolar nerve block. After travelling the canal, it supplies mandibular teeth and then exits as the mental nerve at the mental foramen.
3Which cells produce enamel, and why can enamel not biologically regenerate after tooth eruption?
A.Odontoblasts produce enamel and persist throughout life in the pulp
B.Cementoblasts produce enamel and remain along the root surface
C.Ameloblasts produce enamel and are lost after enamel maturation and eruption
D.Fibroblasts produce enamel matrix within the periodontal ligament
Explanation: Ameloblasts of the enamel organ secrete and mineralise enamel, then undergo programmed loss as the reduced enamel epithelium fuses with oral mucosa at eruption. Because no ameloblasts remain on the erupted crown, enamel has no capacity for cellular regeneration; repair is restorative only. Dentin, by contrast, can be deposited by surviving odontoblasts.
4At approximately what age do the permanent first molars typically erupt?
A.3 years
B.6 years
C.9 years
D.12 years
Explanation: Permanent first molars usually erupt around 6 years of age, distal to the primary second molars and without replacing a primary predecessor. They are often called 6-year molars and are critical for establishing the posterior occlusion. Delayed recognition of their eruption can lead to missed occlusal caries in newly erupted fissures.
5During an inferior alveolar nerve block, the patient develops immediate unilateral facial paralysis without mandibular anaesthesia. The needle most likely entered which structure?
A.Medial pterygoid muscle
B.Parotid gland capsule
C.Pterygoid venous plexus
D.Submandibular salivary gland
Explanation: Transient facial-nerve palsy after an inferior alveolar block occurs when the needle is placed too far posteriorly, missing bone at the ramus and entering the parotid gland, which contains the facial nerve. Local anaesthetic then bathes VII, causing temporary facial paralysis that resolves as the drug wears off. Confirming bone contact before injection reduces this risk.
6Sharpey’s fibres of the periodontal ligament are embedded in which two mineralised tissues?
A.Enamel and dentin
B.Dentin and pulp stones
C.Alveolar bone and cementum
D.Compact bone and articular cartilage
Explanation: Principal periodontal-ligament fibres insert as Sharpey’s fibres into cementum on the root and into alveolar bone of the socket wall. This fibre apparatus suspends the tooth, transmits occlusal loads, and is the tissue destroyed in periodontitis with attachment loss. Enamel has no periodontal-ligament insertion.
7Motor innervation to the muscles of mastication is supplied by which nerve?
A.Facial nerve (VII)
B.Hypoglossal nerve (XII)
C.Mandibular division of the trigeminal nerve (V3)
D.Glossopharyngeal nerve (IX)
Explanation: The motor root travelling with the mandibular division of the trigeminal nerve (V3) innervates the masseter, temporalis, medial and lateral pterygoids, and the accessory muscles of mastication (mylohyoid, anterior digastric, tensor veli palatini, tensor tympani). Facial nerve motor fibres supply muscles of facial expression, not the muscles of mastication.
8The mental foramen is most commonly located adjacent to which mandibular teeth?
A.Central and lateral incisors
B.Canine only
C.Premolars
D.Third molar
Explanation: The mental foramen typically opens on the buccal mandible in the premolar region, most often between the first and second premolars or near the second premolar apex. The mental nerve and vessels exit here, so periapical surgery, implant osteotomy, and flap design in this area require localisation of the foramen on imaging. Position varies, so radiographs or cone-beam CT should confirm the site before surgery.
9Mandibular teeth receive their primary arterial supply from which vessel?
A.Facial artery directly through gingival collaterals only
B.Lingual artery via the deep lingual branch
C.Inferior alveolar artery, a branch of the maxillary artery
D.External carotid artery terminal branch at the gonial angle
Explanation: The inferior alveolar artery arises from the maxillary artery in the infratemporal fossa, enters the mandibular foramen with the inferior alveolar nerve, and supplies the mandibular teeth and periodontium. Gingival and periosteal collaterals exist, but the inferior alveolar artery is the principal pulpal and alveolar supply. Maxillary teeth are supplied by posterior, middle, and anterior superior alveolar arteries, also from the maxillary arterial tree.
10Which mineralised tissue covers the anatomic root of a fully formed tooth?
A.Enamel
B.Cementum
C.Pulp stone
D.Junctional epithelium
Explanation: Cementum is the bone-like mineralised tissue covering the anatomic root, providing insertion for periodontal-ligament fibres. Enamel covers the anatomic crown. Junctional epithelium is a non-mineralised epithelial attachment at the base of the gingival sulcus.

About the Cambodia Dentistry Exit Exam Exam

Cambodia requires dentistry/odontology graduates of public and private programmes to sit a national exit examination under Sub-Decree 21 ANKr.BK. NECHS administers the sitting. World Bank SPESHP includes dentistry among the six professions assessed with competency-based MCQ and OSCE methods. Official item count, duration, fee, and pass mark are unpublished. This free bank is independent OpenExamPrep English MCQ study for graduate dentistry knowledge, not an official NECHS paper and not Dental Council of Cambodia registration.

Exam sponsor: National Examination Committee for Health Sector Training (NECHS). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

National competency exit sitting in Khmer for dentistry graduates of public and private programmes under Sub-Decree 21. Official format includes written MCQ and OSCE components per SPESHP. This 100-question bank is an independent English MCQ study adaptation, not an OSCE or manikin simulation.

Time Limit

Not published as a single sitting duration

Passing Score

Not published as a numeric cut score for the dentistry sitting

Exam / Certification Fees

Not published in Sub-Decree 21 or SPESHP documents

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

Official weight unpublished (15 practice questions)

Biomedical and oral sciences

Oral anatomy, occlusion, and biomedical foundations.

Official weight unpublished (20 practice questions)

Restorative dentistry, endodontics, and cariology

Caries, operative dentistry, and endodontic principles.

Official weight unpublished (15 practice questions)

Periodontology and prevention

Periodontal assessment and prevention.

Official weight unpublished (20 practice questions)

Oral surgery and oral medicine

Exodontia, infection, pathology, and dental-chair emergencies.

Official weight unpublished (15 practice questions)

Pediatric dentistry, prosthodontics, and occlusion

Child oral health and prosthetic rehabilitation.

Official weight unpublished (15 practice questions)

Public health, infection control, and ethics

Community oral health, asepsis, and professional conduct.

Preparing for the Cambodia Dentistry Exit Exam Exam

What You Need to Know

  • Passing score: Not published as a numeric cut score for the dentistry sitting
  • Assessment: National competency exit sitting in Khmer for dentistry graduates of public and private programmes under Sub-Decree 21. Official format includes written MCQ and OSCE components per SPESHP. This 100-question bank is an independent English MCQ study adaptation, not an OSCE or manikin simulation.
  • Time limit: Not published as a single sitting duration
  • Exam / certification fees: Not published in Sub-Decree 21 or SPESHP documents Official sources

Using Our Practice Resources

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

Cambodia Dentistry Exit Exam: Suggested Study Strategy

1Combine restorative, periodontal, and surgical knowledge with infection-control and emergency recognition.
2MCQs cannot replace phantom-head or OSCE practice.
3Review Khmer dental terms because the official sitting is in Khmer.

Frequently Asked Questions

Is this exam only for University of Health Sciences dental students?

No. Sub-Decree 21 requires national graduation examinations for public and private health educational institutions. UHS is one dentistry programme, not the sole sitting identity.

Does this bank replace the OSCE?

No. Official clinical stations assess performance. These English MCQs practise knowledge and safety judgments only.