100+ Free NMLE Stomatology Practice Questions
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Key Facts: NMLE Stomatology Exam
600 MCQs
Total questions in Comprehensive Written Exam
NMEC Examination Syllabus
4 Units
Testing sessions (150 MCQs / 120 min each)
NMEC Computer-Based Testing Plan
360 / 600
National fixed passing score (60%)
National Health Commission / NMEC Policy
6 Stations
Practical Skills Examination format
NMEC Practical Skills Assessment Standard
60 / 100
Passing cutoff for Practical Skills Exam
NMEC Practical Skills Guidelines
2 Years
Practical Skills score validity at National Bases
NMEC Multi-Year Policy (since 2020)
The China NMLE Stomatology Examination (口腔执业医师资格考试) is China's official national dental licensing exam. Administered by NMEC, the qualification consists of a 6-station Practical Skills Examination (passing score 60/100) followed by a 4-unit, 600-question Computer-Based Comprehensive Written Examination with a national fixed passing cutoff of 360/600 (60%). Core tested domains include Oral Basic Sciences (Anatomy, Physiology, Pathology ~20%), Cariology, Endodontics, Periodontics & Mucosal Diseases (~30%), Oral & Maxillofacial Surgery (~25%), Prosthodontics, Pediatric Dentistry & Orthodontics (~20%), and Preventive Dentistry & Health Regulations (~5%).
Sample NMLE Stomatology Practice Questions
Try these sample questions to test your NMLE Stomatology exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1On the permanent maxillary first molar (上颌第一磨牙), on which anatomical surface and cusp is the fifth cusp (Cusp of Carabelli / 卡氏尖) typically located?
2In the permanent mandibular first molar (下颌第一磨牙), what is the most common anatomical configuration of root canals in the mesial root (近中根)?
3Which pulp horn (髓角) in the crown of the permanent mandibular first molar is the highest and most susceptible to accidental exposure during cavity preparation?
4In the temporomandibular joint (颞下颌关节, TMJ), which zone of the articular disc (关节盘) is avascular and aneural, and serves as the primary load-bearing area during mandibular function?
5Which muscle of mastication is primarily responsible for the protrusion (前伸运动) and initial depression of the mandible when contracting bilaterally?
6In Posselt's envelope of border movements (Posselt下颌运动轨迹), what is the relationship between the Centric Relation (正中关系 / 牙后退接触位) and Intercuspal Position (牙尖交错位 / 正中牙合) in approximately 90% of the normal population?
7Which branch of the mandibular nerve (CN V3 / 下颌神经) passes between the two heads of the lateral pterygoid muscle to supply sensory innervation to the cheek skin and buccal gingiva of the mandibular molars?
8During surgery involving the parotid gland or submandibular incision, injury to the marginal mandibular branch of the facial nerve (面神经下颌边缘支) will result in which clinical manifestation?
9Where does the main excretory duct of the submandibular gland (Wharton's duct / 下颌下腺导管) open into the oral cavity?
10During the bell stage (钟状期) of tooth germ development, which embryonic cellular layer differentiates first to initiate the reciprocal induction cascade of dentinogenesis and amelogenesis?
About the NMLE Stomatology Exam
The China National Medical Licensing Examination for Stomatology Practitioners (口腔执业医师资格考试) is the statutory qualification examination administered by the National Medical Examination Center (NMEC) under the National Health Commission of the PRC. It evaluates the clinical knowledge, diagnostic acumen, treatment planning, and professional competence required to obtain a medical practitioner qualification in stomatology (dentistry). The exam consists of two sequential phases: the Stage 1 Practical Skills Examination (实践技能考试, 6 stations, 100 points, passing score 60) and the Stage 2 Comprehensive Written Examination (医学综合考试, 4 computer-based units, 600 MCQs, passing score 360). Tested subjects encompass Oral Anatomy & Physiology, Oral Histopathology, Cariology & Endodontics, Periodontics, Oral Mucosal Diseases, Oral & Maxillofacial Surgery, Prosthodontics, Pediatric Dentistry, Orthodontics, Preventive Dentistry, Medical Ethics, and PRC Health Regulations.
Questions
600 scored questions
Time Limit
4 units × 120 minutes (8 hours total across 2 days)
Passing Score
360 / 600 (fixed passing cutoff for the Comprehensive Written Examination)
Exam Fee
RMB 200–400 (determined by provincial health departments) (National Medical Examination Center (国家医学考试中心 / NMEC))
NMLE Stomatology Exam Content Outline
Oral Anatomy, Physiology & Pathology (口腔解剖生理学与口腔组织病理学)
Tooth morphology, root canal anatomy, occlusion, TMJ anatomy and biomechanics, muscles of mastication, trigeminal and facial nerves, major salivary glands, tooth development (odontogenesis), enamel/dentin/cementum histology, pulp-dentin complex, periodontal tissue biology, odontogenic cysts (periapical, dentigerous, keratocyst), odontogenic tumors (ameloblastoma, odontoma), salivary gland tumors (pleomorphic adenoma, mucoepidermoid carcinoma), and epithelial dysplasia/carcinoma.
Cariology, Endodontics, Periodontics & Oral Mucosal Diseases (牙体牙髓病学、牙周病学与口腔黏膜病学)
Dental caries etiology (microbiology, plaque, diet), cavity classification and Black's principles, adhesive restoration, pulpitis pathogenesis and differential diagnosis, reversible vs irreversible pulpitis, root canal preparation, working length determination, irrigants (sodium hypochlorite, EDTA), 3D root canal obturation, periapical periodontitis, periodontal pathogen complexes (red complex), gingivitis, stage/grade periodontitis classification, scaling and root planing (SRP), periodontal flap surgery and guided tissue regeneration (GTR), recurrent aphthous stomatitis, oral lichen planus, oral leukoplakia, and pemphigus vulgaris.
Oral & Maxillofacial Surgery (口腔颌面外科学)
Local anesthesia techniques (inferior alveolar, PSA, mental, incisive nerve blocks) and systemic toxicity/complications, tooth extraction biomechanics, surgical extraction of impacted mandibular third molars (阻生齿拔除), odontogenic fascial space infections (canine, buccal, submandibular, pterygomandibular, submasseteric, Ludwig's angina), maxillofacial trauma, Le Fort I/II/III maxillary fractures, mandibular fractures, zygomaticomaxillary fractures, salivary gland diseases (sialadenitis, sialolithiasis, ranula), TMJ ankylosis and anterior disc displacement, cleft lip and palate, and TNM staging/management of oral squamous cell carcinoma.
Prosthodontics, Pediatric Dentistry & Orthodontics (口腔修复学、儿童口腔医学与口腔正畸学)
Principles of fixed prosthodontics, tooth preparation margins (chamfer, shoulder), bridge design and abutment evaluation (Ante's law), removable partial denture (RPD) components, surveyor lines, clasps (Akers, Roach), major connectors, complete denture border molding, retention and stability, vertical dimension of occlusion (VDO) and centric relation (CR), implant prosthetics, primary dentition anatomy and root resorption patterns, early childhood caries (ECC), pediatric pulpotomy (formocresol, ferric sulfate, MTA), apexification and apexogenesis, space maintainers, Angle's malocclusion classification, and orthodontic cephalometric basics.
Preventive Dentistry, Medical Ethics & Health Regulations (口腔预防医学、医学伦理学与卫生法规)
Oral epidemiology, DMFT/dmft indices, Community Periodontal Index (CPI), community water fluoridation, fluoride varnish/gel application, pit and fissure sealant technique, standard precautions and dental cross-infection control, autoclave sterilization monitoring, PRC Physicians Law (《中华人民共和国医师法》), medical ethics and patient autonomy, and infectious disease reporting requirements.
How to Pass the NMLE Stomatology Exam
What You Need to Know
- Passing score: 360 / 600 (fixed passing cutoff for the Comprehensive Written Examination)
- Exam length: 600 questions
- Time limit: 4 units × 120 minutes (8 hours total across 2 days)
- Exam fee: RMB 200–400 (determined by provincial health departments)
Keys to Passing
- Work through all 100 available questions
- Review every answer and explanation
- Track weak areas and revisit them
- Use our AI tutor for tough concepts
NMLE Stomatology Study Tips from Top Performers
Frequently Asked Questions
What is the passing score for China's NMLE Stomatology examination?
The National Medical Examination Center (NMEC) uses a fixed national passing score of 360 points out of 600 (60%) for the Stage 2 Comprehensive Written Examination for Stomatology Practitioners (口腔执业医师). For Stomatology Assistant Practitioners (口腔执业助理医师), the passing threshold is 180 out of 300 points.
What are the two stages of the Stomatology Practitioner Licensing Exam?
The examination comprises: (1) Stage 1 Practical Skills Examination (实践技能考试) administered in June, featuring 6 clinical stations assessing oral examination, operative skills, clinical case presentation, radiographic reading, and emergency CPR (pass score 60/100); and (2) Stage 2 Comprehensive Written Examination (医学综合考试) administered in August via computer across 4 units (600 MCQs total).
How are the four units of the written exam organized?
Each unit consists of 150 multiple-choice questions with a 120-minute time limit. Unit 1 focuses on Basic Medical Sciences, Oral Anatomy & Physiology, Oral Pathology, and Medical Humanities; Unit 2 focuses on Cariology & Endodontics, Periodontics, Mucosal Diseases, and Preventive Dentistry; Unit 3 focuses on Oral & Maxillofacial Surgery and General Clinical Medicine; and Unit 4 focuses on Prosthodontics, Pediatric Dentistry, and Orthodontics.
What question formats are used in the computer-based written exam?
All questions are multiple choice, featuring A1 (single-sentence best answer), A2 (clinical case summary), A3/A4 (case cluster and evolving multi-question clinical scenarios), and B1 (matching pairs sharing a common option list). All questions test clinical reasoning and diagnostic decision-making.
What are the eligibility requirements for the NMLE Stomatology exam?
Candidates must hold an accredited Bachelor's degree (本科) in Stomatology (口腔医学) and have completed at least 1 full year of supervised clinical practice/internship in a licensed healthcare institution, or hold an Assistant Stomatologist qualification with 2 years (Junior College / 专科) or 5 years (Secondary Vocational / 中专) of registered clinical experience.
How long does a Practical Skills Exam pass remain valid?
Under National Medical Examination Center policies implemented in 2020, candidates who pass the Stage 1 Practical Skills Examination at an accredited National Practical Skills Examination Base retain their passing score for 2 consecutive years, meaning they do not need to re-sit the skills exam if they retake the written exam the following year.