NBDHE DENTAL HYGIENE NATIONAL BOARD REVIEW EXAM 2026/2027
| EXPERT VERIFIED | UPDATED GUIDELINES | ANSWERS & RATIONALES
| 200 REAL QUESTIONS | PASS GUARANTEED - GRADED A+
SECTION 1: CLINICAL DENTAL HYGIENE
Assessment and Diagnosis (Questions 1-40)
Q1. The primary purpose of a dental hygiene assessment is to:
A) Provide prophylaxis
B) Collect data to identify patient needs and develop a care plan
C) Schedule the next appointment
D) Bill insurance
Answer: B) Collect data to identify patient needs and develop a care plan
Rationale: The assessment is the foundation of the dental hygiene process of care, collecting data to identify
patient needs, risks, and develop an individualized care plan.
Q2. According to the American Dental Hygienists' Association (ADHA) 2026, the dental hygiene process of
care includes:
A) Assessment, diagnosis, planning, implementation, evaluation, documentation
B) Only prophylaxis
C) Only radiographs
,NBDHE DENTAL HYGIENE NATIONAL BOARD REVIEW EXAM 2026/2027
| EXPERT VERIFIED | UPDATED GUIDELINES | ANSWERS & RATIONALES
| 200 REAL QUESTIONS | PASS GUARANTEED - GRADED A+
D) Only patient education
Answer: A) Assessment, diagnosis, planning, implementation, evaluation, documentation
Rationale: The ADHA defines the dental hygiene process of care as a systematic, evidence-based approach
including all six components.
Q3. A dental hygienist is performing a comprehensive periodontal assessment. Which of the following is
essential?
A) Probing depths
B) Bleeding on probing
C) Clinical attachment level
D) All of the above
Answer: D) All of the above
Rationale: Comprehensive periodontal assessment includes probing depths, bleeding on probing, clinical
attachment level, recession, mobility, furcation involvement, and radiographic evaluation.
Q4. According to the American Academy of Periodontology (AAP) 2026 classification system, periodontitis is
classified by:
A) Staging and grading
,NBDHE DENTAL HYGIENE NATIONAL BOARD REVIEW EXAM 2026/2027
| EXPERT VERIFIED | UPDATED GUIDELINES | ANSWERS & RATIONALES
| 200 REAL QUESTIONS | PASS GUARANTEED - GRADED A+
B) Only probing depth
C) Only bone loss
D) Patient age only
Answer: A) Staging and grading
Rationale: The AAP classification system uses staging to describe severity and extent, and grading to describe
risk of progression.
Q5. Stage I periodontitis is characterized by:
A) Severe bone loss
B) Interdental CAL of 1-2 mm
C) Tooth mobility
D) Furcation involvement
Answer: B) Interdental CAL of 1-2 mm
Rationale: Stage I periodontitis has interdental clinical attachment loss of 1-2 mm, no tooth loss due to
periodontitis, and radiographic bone loss in the coronal third (<15%).
Q6. Stage IV periodontitis is characterized by:
, NBDHE DENTAL HYGIENE NATIONAL BOARD REVIEW EXAM 2026/2027
| EXPERT VERIFIED | UPDATED GUIDELINES | ANSWERS & RATIONALES
| 200 REAL QUESTIONS | PASS GUARANTEED - GRADED A+
A) No tooth loss
B) Tooth loss due to periodontitis
C) Mild bone loss
D) Probing depths <3 mm
Answer: B) Tooth loss due to periodontitis
Rationale: Stage IV periodontitis involves tooth loss due to periodontitis and significant functional or esthetic
complexity.
Q7. Grade A periodontitis indicates:
A) Rapid progression
B) Slow progression
C) Moderate progression
D) No progression
Answer: B) Slow progression
| EXPERT VERIFIED | UPDATED GUIDELINES | ANSWERS & RATIONALES
| 200 REAL QUESTIONS | PASS GUARANTEED - GRADED A+
SECTION 1: CLINICAL DENTAL HYGIENE
Assessment and Diagnosis (Questions 1-40)
Q1. The primary purpose of a dental hygiene assessment is to:
A) Provide prophylaxis
B) Collect data to identify patient needs and develop a care plan
C) Schedule the next appointment
D) Bill insurance
Answer: B) Collect data to identify patient needs and develop a care plan
Rationale: The assessment is the foundation of the dental hygiene process of care, collecting data to identify
patient needs, risks, and develop an individualized care plan.
Q2. According to the American Dental Hygienists' Association (ADHA) 2026, the dental hygiene process of
care includes:
A) Assessment, diagnosis, planning, implementation, evaluation, documentation
B) Only prophylaxis
C) Only radiographs
,NBDHE DENTAL HYGIENE NATIONAL BOARD REVIEW EXAM 2026/2027
| EXPERT VERIFIED | UPDATED GUIDELINES | ANSWERS & RATIONALES
| 200 REAL QUESTIONS | PASS GUARANTEED - GRADED A+
D) Only patient education
Answer: A) Assessment, diagnosis, planning, implementation, evaluation, documentation
Rationale: The ADHA defines the dental hygiene process of care as a systematic, evidence-based approach
including all six components.
Q3. A dental hygienist is performing a comprehensive periodontal assessment. Which of the following is
essential?
A) Probing depths
B) Bleeding on probing
C) Clinical attachment level
D) All of the above
Answer: D) All of the above
Rationale: Comprehensive periodontal assessment includes probing depths, bleeding on probing, clinical
attachment level, recession, mobility, furcation involvement, and radiographic evaluation.
Q4. According to the American Academy of Periodontology (AAP) 2026 classification system, periodontitis is
classified by:
A) Staging and grading
,NBDHE DENTAL HYGIENE NATIONAL BOARD REVIEW EXAM 2026/2027
| EXPERT VERIFIED | UPDATED GUIDELINES | ANSWERS & RATIONALES
| 200 REAL QUESTIONS | PASS GUARANTEED - GRADED A+
B) Only probing depth
C) Only bone loss
D) Patient age only
Answer: A) Staging and grading
Rationale: The AAP classification system uses staging to describe severity and extent, and grading to describe
risk of progression.
Q5. Stage I periodontitis is characterized by:
A) Severe bone loss
B) Interdental CAL of 1-2 mm
C) Tooth mobility
D) Furcation involvement
Answer: B) Interdental CAL of 1-2 mm
Rationale: Stage I periodontitis has interdental clinical attachment loss of 1-2 mm, no tooth loss due to
periodontitis, and radiographic bone loss in the coronal third (<15%).
Q6. Stage IV periodontitis is characterized by:
, NBDHE DENTAL HYGIENE NATIONAL BOARD REVIEW EXAM 2026/2027
| EXPERT VERIFIED | UPDATED GUIDELINES | ANSWERS & RATIONALES
| 200 REAL QUESTIONS | PASS GUARANTEED - GRADED A+
A) No tooth loss
B) Tooth loss due to periodontitis
C) Mild bone loss
D) Probing depths <3 mm
Answer: B) Tooth loss due to periodontitis
Rationale: Stage IV periodontitis involves tooth loss due to periodontitis and significant functional or esthetic
complexity.
Q7. Grade A periodontitis indicates:
A) Rapid progression
B) Slow progression
C) Moderate progression
D) No progression
Answer: B) Slow progression
