NBDHE Exam Version 2 2025: Complete Study Guide, Practice
Questions, Clinical Case Scenarios & Proven Strategies to Pass the
National Board Dental Hygiene Examination
Prepare for the NBDHE Exam Version 2 with this comprehensive 2025 study guide. Access
practice questions, exam format details, clinical case scenarios, and proven strategies to help you
pass the National Board Dental Hygiene Examination on your first attempt
• NBDHE Exam Version 2
• NBDHE practice exam version 2
• National Board Dental Hygiene Examination
•
If you wanted to decrease patient radiation exposure, which of the following PIDs (position-indicating
devices or cones) would you choose? - ANSWER-16-inch circular
Which of the following statements correctly describes film speed? - ANSWER-The thickness of the
emulsion is partially responsible for film speed
Each of the following statements regarding distribution of a drug within the system is true EXCEPT one.
Which one is the EXCEPTION? - ANSWER-Drug metabolism takes place mainly in the kidneys
Which microbial organism is the least aciduric? - ANSWER-Porphyromonas gingivalis
Which of the following is NOT an oral manifestation of human immunodeficiency virus infection (HIV)? -
ANSWER-Apoptosis
Your next patient, Mrs. Smith, an African-American woman who is 50 years old, has been waiting for a
kidney transplant for 9 months. Three times a week, she must undergo kidney dialysis as a lifesaving
therapy. She takes nifedipine (Procardia) for hypertension and Wellbutrin (bupropion) for depression.
Her chief complaint is "My gums look big, and they keep bleeding.
,"Which of the following situations is most likely NOT an issue in planning a dental appointment for Mrs.
Smith? - ANSWER-Seizures
Your next patient, Mrs. Smith, an African-American woman who is 50 years old, has been waiting for a
kidney transplant for 9 months. Three times a week, she must undergo kidney dialysis as a lifesaving
therapy. She takes nifedipine (Procardia) for hypertension and Wellbutrin (bupropion) for depression.
Her chief complaint is "My gums look big, and they keep bleeding." In light of her current health, it is
likely that Mrs. Smith's gums appear large and tend to bleed because inflammation, accumulation of
urea, and water retention are common feature of end-stage renal disease. - ANSWER-The statement is
correct, but the reason is NOT.
Which of the following fluoride-releasing restorative material is of limited use? - ANSWER-Metal-
modified glass ionomer
Aluminum filters, a portion of the radiographic machine's anode, are placed in the path of the x-ray
beam to - ANSWER-filter the low-energy, nonpenetrating x-rays from the beam.
Which of the following findings would necessitate retreatment with active periodontal therapy if
discovered on a reevaluation during a periodontal maintenance care visit? - ANSWER-Localized
attachment loss of 2 mm or more
A community health clinic located in an underserved rural community has hired a dental hygienist to
design and implement a program to reduce early childhood caries (ECC). Most of the population does
not benefit from community fluoridated water, nor are school-based fluoridation programs available.
During initial research, the dental hygienist learns that a strong coalition within the community opposes
any type of fluoridation. To prioritize needs, goals and objectives the program administrator has
recommended use of the SMART formula. The clinic, funded by a state agency, hopes to expand oral
services to older children and adults in the next few years.
Each of the following is an area of concern in public health EXCEPT one. Which one is the EXCEPTION? -
ANSWER-Intelligence
, Characteristics of rheumatoid arthritis (adult type) include each of the following EXCEPT one. Which one
is the EXCEPTION? - ANSWER-Onset is acute with fever, rash, spleen, and lymph node involvement
As a requirement for your graduate degree in dental hygiene, you are conducting statistical analysis of
data from a community oral screening program in a local homeless shelter. Socioeconomic status is low
and the incidence of homelessness is high in this community since a factory closed recently and layoffs
were made in related industries. Homelessness presents many challenges in obtaining accurate research
data, partly because of transportation difficulties experienced by patients and partly by the seasonal and
transient nature of this population as individuals seek employment. The shelter provides a limited supply
of toothpaste, toothbrushes, and dental floss. A related aspect of this assignment includes presenting a
brief introduction of statistical concepts to dental hygiene students at a nearby community college.
Variables along a continuum, such as temperature, scores from a survey, and time are examples of d -
ANSWER-The first statement is false, the second is true.
Which statement accurately describes acute fluoride poisoning? - ANSWER-In acute fluoride poisoning
(adults and children 6 years and older), vomiting should be induced with ipecac
Oral irrigation, as part of a patient's self-care, can provide - ANSWER-a method to deliver antimicrobial
agents to gingival areas.
Each of the following is true of chronic obstructive pulmonary disease (COPD) EXCEPT one. Which one is
the EXCEPTION? - ANSWER-Respiration consists of long, deep, slow breaths
During root planing, the need for extensive cementum removal to attain a glassy, smooth surface is
widely accepted. While performing root planing with anesthesia, a skilled dental hygienist should be able
to accomplish complete removal of calculus in areas of deep, restricted pockets. - ANSWER-Both
statements are false.
While working in private dental practice you volunteered extensively at a small state-funded dental clinic
in a rural county whose primary employer is a large tobacco-growing operation. Community water
sources are fluoridated, but a significant portion of the population relies on well water. Recently you
were hired by a nonprofit organization through a state-funded grant to develop tobacco-cessation
strategies and provide dental hygiene care for underserved local adults. Before you initiate services, the
grant mandates that you assess the oral health status and needs of the population. An epidemiologist is
available for you to consult, as is an environmental health specialist.
Questions, Clinical Case Scenarios & Proven Strategies to Pass the
National Board Dental Hygiene Examination
Prepare for the NBDHE Exam Version 2 with this comprehensive 2025 study guide. Access
practice questions, exam format details, clinical case scenarios, and proven strategies to help you
pass the National Board Dental Hygiene Examination on your first attempt
• NBDHE Exam Version 2
• NBDHE practice exam version 2
• National Board Dental Hygiene Examination
•
If you wanted to decrease patient radiation exposure, which of the following PIDs (position-indicating
devices or cones) would you choose? - ANSWER-16-inch circular
Which of the following statements correctly describes film speed? - ANSWER-The thickness of the
emulsion is partially responsible for film speed
Each of the following statements regarding distribution of a drug within the system is true EXCEPT one.
Which one is the EXCEPTION? - ANSWER-Drug metabolism takes place mainly in the kidneys
Which microbial organism is the least aciduric? - ANSWER-Porphyromonas gingivalis
Which of the following is NOT an oral manifestation of human immunodeficiency virus infection (HIV)? -
ANSWER-Apoptosis
Your next patient, Mrs. Smith, an African-American woman who is 50 years old, has been waiting for a
kidney transplant for 9 months. Three times a week, she must undergo kidney dialysis as a lifesaving
therapy. She takes nifedipine (Procardia) for hypertension and Wellbutrin (bupropion) for depression.
Her chief complaint is "My gums look big, and they keep bleeding.
,"Which of the following situations is most likely NOT an issue in planning a dental appointment for Mrs.
Smith? - ANSWER-Seizures
Your next patient, Mrs. Smith, an African-American woman who is 50 years old, has been waiting for a
kidney transplant for 9 months. Three times a week, she must undergo kidney dialysis as a lifesaving
therapy. She takes nifedipine (Procardia) for hypertension and Wellbutrin (bupropion) for depression.
Her chief complaint is "My gums look big, and they keep bleeding." In light of her current health, it is
likely that Mrs. Smith's gums appear large and tend to bleed because inflammation, accumulation of
urea, and water retention are common feature of end-stage renal disease. - ANSWER-The statement is
correct, but the reason is NOT.
Which of the following fluoride-releasing restorative material is of limited use? - ANSWER-Metal-
modified glass ionomer
Aluminum filters, a portion of the radiographic machine's anode, are placed in the path of the x-ray
beam to - ANSWER-filter the low-energy, nonpenetrating x-rays from the beam.
Which of the following findings would necessitate retreatment with active periodontal therapy if
discovered on a reevaluation during a periodontal maintenance care visit? - ANSWER-Localized
attachment loss of 2 mm or more
A community health clinic located in an underserved rural community has hired a dental hygienist to
design and implement a program to reduce early childhood caries (ECC). Most of the population does
not benefit from community fluoridated water, nor are school-based fluoridation programs available.
During initial research, the dental hygienist learns that a strong coalition within the community opposes
any type of fluoridation. To prioritize needs, goals and objectives the program administrator has
recommended use of the SMART formula. The clinic, funded by a state agency, hopes to expand oral
services to older children and adults in the next few years.
Each of the following is an area of concern in public health EXCEPT one. Which one is the EXCEPTION? -
ANSWER-Intelligence
, Characteristics of rheumatoid arthritis (adult type) include each of the following EXCEPT one. Which one
is the EXCEPTION? - ANSWER-Onset is acute with fever, rash, spleen, and lymph node involvement
As a requirement for your graduate degree in dental hygiene, you are conducting statistical analysis of
data from a community oral screening program in a local homeless shelter. Socioeconomic status is low
and the incidence of homelessness is high in this community since a factory closed recently and layoffs
were made in related industries. Homelessness presents many challenges in obtaining accurate research
data, partly because of transportation difficulties experienced by patients and partly by the seasonal and
transient nature of this population as individuals seek employment. The shelter provides a limited supply
of toothpaste, toothbrushes, and dental floss. A related aspect of this assignment includes presenting a
brief introduction of statistical concepts to dental hygiene students at a nearby community college.
Variables along a continuum, such as temperature, scores from a survey, and time are examples of d -
ANSWER-The first statement is false, the second is true.
Which statement accurately describes acute fluoride poisoning? - ANSWER-In acute fluoride poisoning
(adults and children 6 years and older), vomiting should be induced with ipecac
Oral irrigation, as part of a patient's self-care, can provide - ANSWER-a method to deliver antimicrobial
agents to gingival areas.
Each of the following is true of chronic obstructive pulmonary disease (COPD) EXCEPT one. Which one is
the EXCEPTION? - ANSWER-Respiration consists of long, deep, slow breaths
During root planing, the need for extensive cementum removal to attain a glassy, smooth surface is
widely accepted. While performing root planing with anesthesia, a skilled dental hygienist should be able
to accomplish complete removal of calculus in areas of deep, restricted pockets. - ANSWER-Both
statements are false.
While working in private dental practice you volunteered extensively at a small state-funded dental clinic
in a rural county whose primary employer is a large tobacco-growing operation. Community water
sources are fluoridated, but a significant portion of the population relies on well water. Recently you
were hired by a nonprofit organization through a state-funded grant to develop tobacco-cessation
strategies and provide dental hygiene care for underserved local adults. Before you initiate services, the
grant mandates that you assess the oral health status and needs of the population. An epidemiologist is
available for you to consult, as is an environmental health specialist.
