What is a benefit of resin-based sealants?
A.) Fluoride is released from material to inhibit decay
B.) When placed correctly, retention is excellent
C.) Bond strength is improved in a moist environment
D.) No polymerization shrinkage occurs – Answer B.) When placed correctly, retention is
excellent
Which is the most common desensitizing agent found in over-the-counter dentifrices?
A.) Potassium
B.) Glutaraldehyde
C.) Hydrogen Peroxide
D.) Triclosan – Answer
Each of the following patients would benefit from prescription fluoride supplements
except one. Which is the exception?
A.) 16- year old male living in a community where the fluoride level in the water is 0.5
ppm
B.) 7-month old female who receives her total dietary intake from breast milk
C.) 5- year old male living in a community where the fluoride level in the water supply is
0.2 ppm
D.) 33- year old female in her second trimester of pregnancy who drinks unfluoridated
water – Answer D.) 33- year old female in her second trimester of pregnancy who drinks
unfluoridated water
Which of the following characteristics of body tissue determines its sensitivity to
radiation?
A.) Blood flow
B.) Mitotic rate
C.) Iron content
D.) Oxyhemoglobin concentration
E.) None of the choices – Answer
Which water- soluble vitamin prevents spina bifida?
A.) Folate
B.) Thiamin
C.) Niacin
D.) AScorbic acid – Answer
Which assess fremitus?
A.)Handles of two single-sided instruments
B.) Clinician’s finger
C.) Occlusal indicator paper (mylar strip)
D.) Vertical bitewing radiographs – Answer
Which nerve listed is affected if a patient complains of being unable to experience
touch, pain, hot, cold, or pressure on the anterior two thirds of the tongue?
A.) Glossopharyngeal
B.) Chorda tympani
C.) Lingual
D.) Hypoglossal – Answer
WHich schedule of controlled substance is indicated when a prescription states “no
refills”?
A.) III
B.) II
C.) I
D.) IV – Answer B.) II
Each of the following is an appropriate protocol in managing necrotizing ulcerative
gingivitis (NUG) except one. Which one is the exception?
A.) Topical corticosteroid therapy
B.) Therapeutic 0.12% chlorhexidine rinse
C.) Debridement with ultrasonic instruments
D.) Improved oral hygiene care – Answer
Which of the following nerves or branches of a nerve contains pain fiber affected by
disturbances of the temporomandibular joint?
A.) Auriculotemporal
B.) Temporal branch of the facial nerve
C.) Chorda tympani
D.) Zygomaticotemporal – Answer A.) Auriculotemporal
Guanethidine is especially prone to produce which adverse effect?
A.) Lupus erythematosus
B.) Orthostatic hypotension
C.) Severe depression
D.) Agranulocytosis – Answer B.) Orthostatic hypotension
A patient in her seventh month of pregnancy begins to feels nauseous during the dental
prophylaxis. Suddenly, the patient begins to seat and starts gasping for air. What is the
patient experiencing?
NBDHE Review Questions and Answers
A.) Postprandial hypotension
B.) Supine hypotensive syndrome
C.) Neurally mediated hypotension
D.) Orthostatic hypotension – Answer
A mother brings her 1-year old into your office the day after his first birthday. She claims
the pediatrician said to have the first dental check-up by this time. From among these
choices, which primary teeth are you expecting to see when the child opens?
A.) Mandibular incisors only
B.) Maxillary incisors only
C.) All anterior teeth
D.) Mandibular and maxillary incisors – Answer
Which technique produces the most accurate alginate impression?
A.) Rock tray gently to release it from patient’s mouth once material is set
B.) Allow impression to dry completely before pouring gypsum
C.) Reduce amount of water slightly to speed gelation
D.) Mix alginate powder with cool water – Answer D.) Mix alginate powder with cool
water
Which specific part of the respiratory system functions as a gas exchanger rather than
an airdistributor?
A.) Alveoli
B.) Blood cells
C.) Lungs
D.) Upper respiratory tract – Answer
The patient’s chief concern should be recored as?
A.) Preliminary diagnosis
B.) Deductive statement
C.) Human needs deficit
D.) Direct quote – Answer D.) Direct quote
Which groove is the most identifying characteristic of a three-cusp mandibular second
premolar?
A.) Central
B.) Buccal
C.) DIstolingual
D.) Mesial – Answer
A correctly placed periodontal dressing
A.) Covers entire buccal or facial surfaces of involved teeth
B.) Extends into mucobuccal fold
C.) Covers occlusal surfaces of involved teeth
D.) Compresses into interproximal spaces – Answer
Upon examination of a 14-year old female patient, three painful minor aphthous ulcers
are discovered. What supportive treatment is indicated?
A.) Systemic antibiotics
B.) Aspirin therapy
C.) Topical corticosteroidsD.) Topical antiviral drugs – Answer
A bone replacement graft material removed from another species and placed in an area
with periodontal defect is called a/an
A.) Autograft
B.) Xylograft
C.) Allograft
D.) Xenograft – Answer
An intraoral examination exhibits signs of oral mucositis. The clinician should be
suspicious of
A.) Pulmonary disease
B.) Diabetes mellitus
C.) Chronic kidney failure
D.) Hypertension – Answer C.) Chronic kidney failure
Which mouth rinse ingredient is most beneficial for a patient with xerostomia?
A.) Essential oil
B.) Sodium fluoride
C.) Chlorhexidine gluconate
D.) Sanguinarine – Answer B.) Sodium fluoride
A patient’s intraoral examination reveals a well-circumscribed, raised lesion along the
lateral border of the tongue. The lesion is soft deep purple and measures approximately
2 mm in diameter. The patient believes it first appeared after accidentally biting the
tongue. Which best defines the lesion?
A.) Adenoma
B..) Papilloma
C.) Gumma