A 17 yr old presents for a third molar evaluation. The panoramic radiograph reveals the
apical thirst of roots #1 & #2 have fused together. Which best defines this anomaly? – ans
Concrescence
Concrescence is the fusion of 2 individually developed teeth with cementum only.
Gemination occurs when a single tooth bud forms tow joined teeth.
a 42 yr old patient presents to the dental office for periodontal care. The health history
indicates she is currently undergoing cancer treatment. Which is recorded other than in the
patient's disease status information? – ans Patient's appearance due to cancer
A 53 yr old patient returns to the dental office 5 weeks after non-surgical periodontal
therapy for re-evaluation. Although the tissue response is generally positive, the hygienist
notes one area of localized inflammation with bleeding on probing. Which action should the
hygienist take? – ans Explore site for residual calculus deposits or plaque retentive factors
A community fair was held to provide information to residents regarding issue related to
dental health. The dental hygienists organizing the event wanted to determine if the fair
had an impact on the attendees' dental knowledge. Attendee were asked to complete a
questionnaire prior to visiting five booths and immediately following attendance at the last
booth. 93 attendees voluntarily chose to complete the survey. The survey was a 10-item
dental health knowledge questionnaire with each item worth one point. It was
administered in a pre and post test design. Questionnaire items were in a true or false
format. Each item was scored "1" of answered correctly and "0" if answered incorrectly.
Items were totaled and overall pre-test scores were compared with overall post-test
scores. A statistical analysis was used to determine the difference between the mean scores
(p<.01). The pre-test results revealed a mean score of 6.4 – ans Cross-sectional
A dental hygienist is creating an oral health care program for participants at a local
Women, Infants, and Children program (WIC). The hygienist will develop a community
profile to determine the WIC participant's dental knowledge. Instruction will include tooth
brushing, oral physiotherapy techniques, and the relationship between diet and dental
decay. The program will be offered for one month on days participants pick up food
vouchers. By offering instruction at the WIC site, the dental hygienist hopes to educate
caregivers and children early enough to prevent dental decay. – ans Agriculture
A dental material's resilience estimates the total elastic energy it ca absorb before
deformation occurs. A dental material
s elastic strain represents its stiffness. – ans The first statement is true and the second is
false
A patient in her second trimester of pregnancy experiences severe muring sickness. Which
should the patient do immediately after vomiting> - ans Rinse mother-in-law thoroughly
with a solution of baking soda and water
A patient in her seventh month of pregnancy begins to feel nauseous during the dental
prophylaxis. Suddenly, the patient begins to sweat and starts grasping for air. What is the
patient experiencing? – ans Supine hypotensive syndrome
Supine hypotensive syndrome is an abrupt fall in blood pressure resulting from
compression of the inferior vena cava by the gravid uterus when the patient is in a supine
position. It manifests as bradycardia, sweating, nausea, weakness, and air hunger.
A patient presents with a short, thick lingual frenum that results in limited tongue
movement affecting speech. Which is the most likely diagnosis of this condition? – ans
Ankyloglossia
A patient's buccal mucosa exhibits tiny white nodules connected by slender raised lines in a
lace-like pattern. This finding is a clinical manifestation of – ans lichen plants
A patient's intramural examination reveals a well-circumscribed, raised lesion along the
lateral border of the tongue. The lesion is soft, deep purple and measures 2mm diameter.
The patient believes it first appeared after accidentally biting the tongue. Which best
defines the lesion? - ansHemangioma
A patient's prescription has the abbreviation "qid" meaning? - anstake medication four
times a day
A plaintiff cannot use the testimony of a specialist to establish the standard of care for a
general dentist because the courts require all dentists to properly diagnose disease. -
ansBothe the statement and the reasons are correct but NOT related.
A pregnant woman reports a freely moveable, deep red tissue mass, which extends from
the labial gingival between maxillary right premolars. The surface of the lesion is ulcerated
and bleeds easily. A histologic analysis indicates the lesion is composed of connective
tissue, capillaries, and inflammatory cells. Which best defines the lesion? - ansPyogenic
granuloma
A through review of the health history and nutritional analysis indicates the patient is at an
elevated risk for developing osteoporosis. Which vitamin deficiency is associated with a
loss of mineralized bone tissue - ansvitamin D
According to the Classification System of the American Academy of Periodontology, which
classification of periodontal diseases is generalized aggressive periodontitis? - ansIII
After taking a periodical of tooth #24 using the paralleling technique, the dental hygienist
notices the image appears elongated. How would the dental hygienist correct this error? -
ansIncrease negative vertical angulation
An assessment of the patient's dentition reveals the presence of a large amalgam overhang.
Radiographic evidence confirms that nearly two-thirds of the inter-proximal embrasure
space is obstructed by amalgam. Which procedure is indicated? - ansReplacement of
restoration
An orthodontist hypothesizes a relationship exists between tongue thrust swallowing and
the position of anterior teeth. He conducts a study by selecting 35 subjects who have
tongue thrust swallowing and a control group of 35 subjects without tongue-thrust
swallowing. Occlusion was determines using Angle's classification of malocclusion. The
overate of those who had tongue thrust were measured and compared with the
corresponding values of the control subjects. The same orthodontist performed all
measurements. Results determines that with p < 0.05, overate measurements were
significantly increased in persons with tongue-thrust when compared to persons who did
not have tongue-thrust.
Which study was conducted? - ansClinical trial
Anaerobe bacteria - ansgrow only in the absence of oxygen
At which interval of maintenance treatment, in months, does the long-term success of
nonsurgical periodontal therapy rely? - ans3 months
At which locality are x-ray photons created inside the dental X-ray tube? - ansAnode
Before January 2011, which is the optimum concentration of fluoride in parts per million in
community drinking water? - ans1
Chlorhexidine gluconate (CHG) is a wifely used chemotherapeutic rinse proven effective in
reducing plaque and gingivitis. Chlorhexidine gluconate is effective against gram-positive
and gram-negative bacteria - ansBoth statements are true
City council members are scheduled to listen to concerns of the community at a public
meeting regarding fluoride supplementation of city water. The main points of contention
within the community revolve around the issues of too much or too little fluoride in the
water. In addition, several vocal antifluoridationists declare the city government is forcing
medication on them with the fluoridation. The president of the local dental hygiene
association has been asked to provide the forum with information on water fluoridation,
alternatives to fluoridation, and other community concerns.
Which level of prevention is water fluoridation? - ansPrimary
Consuming foods high in retinol will help prevent night blindness because vitamin D helps
absorb calcium. - ansBoth the statement and reason are correct but not related.
Consuming foods high in retinol will help prevent night blindness. Vitamin D DOES help
absorb calcium.
Dental needles are available in three lengths: long, short, and ultrashort. The lower the
cause number of the needle, the smaller the diameter of the lumen - ansThe first statement
is true and the second is false
Dental professionals who volunteer their time and services for nonprofit are exempt from
liability. Dental professional who treat family members at no charge are giving a gift that is
not subject to malpractice action or damage award. - ansBoth statements are false
Destroyed enamel cannot reform since the cells that formed it no longer exist. Cavitated
enamel can repair itself by the incorporation of calcium and phosphate ions from saliva? -
ansFirst statement is true second statement is false
During a case presentation, which patient visual impairment requires the clinician to be
positioned to the patients side? - ansMacular degeneration
During pregnancy, when do most embryonic cleft malformations occur? - ansFirst
trimester
During sealant placement, which angles in degrees, provides the greatest retention? - ans45
Each of the following are signs of moderate apprehension EXCEPT one. Which one is the
EXCEPTION? - ansDizziness
Each of the following are true concerning professionally applied topical fluoride in a tray
EXCEPT one. Which one is the EXCEPTION? - ansAsk patient to rinse thoroughly following
the application to prevent ingestion.
Each of the following can be recommended a fluoride rincse EXCEPT one. Which one is the
EXCEPTION? - ans4 yr old female with visible heavy plaque and clinical evidence of
incipient caries
Each of the following compounds is used to fluoridate domestic water systems EXCEPT
one. Which one is the EXCEPTION?
A. Acidulated phosphate
B. Hydrofluorosilicic acid
C. Sodium fluoride
D. Sodium silicofluoride - ansAcidulated phosphate
Acidulated phosphate is an in-office, professional topical fluoride.
Each of the following is a calcium blocking agent EXCEPT one. Which one is the
EXCEPTION? - ansPropranolol (adrenergic blocking agent which reduces high blood
pressure)
Each of the following is a component of informed consent EXCEPT one. Which one is the
EXCEPTION? - ansFinancial arrangements
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