National Board Dental Hygiene Examination — Information & Free Practice
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National Board Dental Hygiene Examination
Examination outline
Discipline-Based Component — Scientific Basis for Dental Hygiene Practice (61 items)
- Anatomic Sciences
- Anatomic Sciences — Anatomy
- Anatomic Sciences — Anatomy — Head and neck anatomy
- Anatomic Sciences — Anatomy — Dental anatomy
- Anatomic Sciences — Anatomy — Dental anatomy — General anatomy
- Anatomic Sciences — Anatomy — Dental anatomy — Root anatomy
- Anatomic Sciences — Anatomy — Histology and Embryology
- Anatomic Sciences — Physiology
- Anatomic Sciences — Biochemistry and Nutrition
- Anatomic Sciences — Microbiology and Immunology
- Anatomic Sciences — Pathology
- Anatomic Sciences — Pathology — General
- Anatomic Sciences — Pathology — Oral
- Anatomic Sciences — Pharmacology
Discipline-Based Component — Provision of Clinical Dental Hygiene Services (115 items)
- Assessing Patient Characteristics
- Assessing Patient Characteristics — Medical and dental history
- Assessing Patient Characteristics — Head and neck examination
- Assessing Patient Characteristics — Periodontal evaluation
- Assessing Patient Characteristics — Oral evaluation
- Assessing Patient Characteristics — General
- Obtaining and Interpreting Radiographs
- Obtaining and Interpreting Radiographs — Principles of radiophysics and radiobiology
- Obtaining and Interpreting Radiographs — Principles of radiologic health
- Obtaining and Interpreting Radiographs — Technique
- Obtaining and Interpreting Radiographs — Recognition of normalities and abnormalities
- Obtaining and Interpreting Radiographs — General
- Planning and Managing Dental Hygiene Care
- Planning and Managing Dental Hygiene Care — Infection control (application)
- Planning and Managing Dental Hygiene Care — Recognition of emergency situations and provision of appropriate care
- Planning and Managing Dental Hygiene Care — Individualized patient education
- Planning and Managing Dental Hygiene Care — Individualized patient education — Planning of individualized instruction
- Planning and Managing Dental Hygiene Care — Individualized patient education — Provision of instruction for prevention and management of oral diseases
- Planning and Managing Dental Hygiene Care — Individualized patient education — Provision of instruction for prevention and management of oral diseases — Dental caries
- Planning and Managing Dental Hygiene Care — Individualized patient education — Provision of instruction for prevention and management of oral diseases — Periodontal disease
- Planning and Managing Dental Hygiene Care — Individualized patient education — Provision of instruction for prevention and management of oral diseases — Oral conditions
- Planning and Managing Dental Hygiene Care — Individualized patient education — Anxiety and pain control
- Planning and Managing Dental Hygiene Care — Individualized patient education — Recognition and management of compromised patients
- Planning and Managing Dental Hygiene Care — Individualized patient education — Dental hygiene treatment strategies
- Planning and Managing Dental Hygiene Care — Individualized patient education — Dental hygiene treatment strategies — Diagnosis
- Planning and Managing Dental Hygiene Care — Individualized patient education — Dental hygiene treatment strategies — Treatment plan
- Planning and Managing Dental Hygiene Care — Individualized patient education — Dental hygiene treatment strategies — Case presentation
- Planning and Managing Dental Hygiene Care — Individualized patient education — General
- Performing Periodontal Procedures
- Performing Periodontal Procedures — Etiology and pathogenesis of periodontal diseases
- Performing Periodontal Procedures — Prescribed therapy
- Performing Periodontal Procedures — Prescribed therapy — Periodontal debridement
- Performing Periodontal Procedures — Prescribed therapy — Surgical support services
- Performing Periodontal Procedures — Prescribed therapy — Chemotherapeutic agents
- Performing Periodontal Procedures — Prescribed therapy — General
- Performing Periodontal Procedures — Reassessment and maintenance (e.g., implant care)
- Using Preventive Agents
- Using Preventive Agents — Fluorides - systemic and topical
- Using Preventive Agents — Fluorides - systemic and topical — Mechanisms of action
- Using Preventive Agents — Fluorides - systemic and topical — Toxicology
- Using Preventive Agents — Fluorides - systemic and topical — Methods of administration
- Using Preventive Agents — Fluorides - systemic and topical — Methods of administration — Water fluoridation
- Using Preventive Agents — Fluorides - systemic and topical — Methods of administration — Self-administered
- Using Preventive Agents — Pit and fissure sealants
- Using Preventive Agents — Other preventive agents
- Providing Supportive Treatment Services
- Providing Supportive Treatment Services — Properties and manipulation of materials
- Providing Supportive Treatment Services — Polishing natural and restored teeth
- Providing Supportive Treatment Services — Making of impressions and preparation of study casts
- Providing Supportive Treatment Services — Other supportive services (e.g., tooth desensitization)
- Providing Supportive Treatment Services — General
- Professional Responsibility
- Professional Responsibility — Ethical principles, including informed consent
- Professional Responsibility — Regulatory compliance
- Professional Responsibility — Patient and professional communication
- Professional Responsibility — General
Discipline-Based Component — Community Health/Research Principles (24 items)
- Promoting Health and Preventing Disease Within Groups
- Participating in Community Programs
- Participating in Community Programs — Assessing populations and defining objectives
- Participating in Community Programs — Designing, implementing, and evaluating programs
- Analyzing Scientific Literature, Understanding Statistical Concepts, and Applying Research Results
Case-Based Component (150 items involving 12 to 15 dental hygiene patient cases)
- Cases present information dealing with adult and child patients and may involve geriatric, adult-periodontal, pediatric, special needs, medically compromised, and other patient types; a medically compromised patient is one whose health status may require modification of standard treatment or special consideration.
- Patient information is presented by means of patient histories, dental charts, radiographs, and clinical photographs.
- Assessing patient characteristics
- Obtaining and interpreting radiographs
- Planning and managing dental hygiene care
- Performing periodontal procedures
- Using preventive agents
- Providing supportive treatment service
- Professional responsibility
Examination sources
- JCNDE NBDHE 2026 Candidate Guide
pp. 5-7, NBDHE Test Specifications Prior to Update
- JCNDE NBDHE 2026 Candidate Guide
p. 17, Scoring of Examination
- JCNDE NBDHE 2026 Candidate Guide
p. 24, Application Procedures
Related license preparation
This examination may be required or accepted as an alternative, depending on the license and application pathway.
- advanced practice permit; courtesy license; Dental Hygiene License; Certification to Administer Local Anesthetic Agents; Certification to Administer Nitrous Oxide Sedation; Restorative Function License Endorsement; Temporary Military Courtesy License
- provisional fellowship license; Provisional License; provisional military license; Provisional Military Spouse License; provisional teaching license; Volunteer/Limited Temporary License
- Temporary Practice Permit; Provisional License to Practice Dental Hygiene
- Dental Hygiene School Faculty Member License; Military Limited Volunteer License