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200 NBDHE MOCK BOARD QUESTIONS
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200 NBDHE MOCK BOARD QUESTIONS
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200 NBDHE MOCK BOARD QUESTIONSSensory impulses from a toothache are likely to be transmitted on - Answers -cranial
nerve V
Viruses can be distinguished from all other microorganisms by virtue of their - Answers -
possession of only one type of nucleic acid
Too little vertical angulation when taking radiographs will result in - Answers -elongation
Which of the following describes a Class I furcation involvement? - Answers -A slight
concavity is detectable, but no radiolucency is visible on the radiograph
Systemic diseases can be associated with periodontal disease, since they can affect
immune functions, inflammatory response and tissue organization. These include the
genetic disorders - Answers -Chediak-Higashi syndrome, Papillon-Leferve syndrome,
and hypophosphatasia
Kaposi's sarcoma is MOST commonly located on the - Answers -palate
Which of the following could be used for removal of burnished tenacious calculus in
deep, narrow pockets with firm, fibrotic tissue - Answers -periodontal file
Oral manifestations of bulimia include all of the following, EXCEPT one. Which one is
the EXCEPTION? - Answers -Leukoedema
Subgingival calculus receives its mineral content from - Answers -gingival crevicular
fluid
A dense, fibrous, raised, skin-colored lesion located on the buccal mucosa at the height
of the occlusal plane is MOST likely a - Answers -fibroma
The appearance of spongy rolled gingival margins and bulbous gingival papilla is the
result of - Answers -accumulation of tissue fluid
When radiographs are being duplicated, the duplicating film is placed closest to the light
source. The greatest density of the duplicated image will occur with the longest
exposure to the light source. - Answers -Both statements are false
Periodontal debridement of the maxillary left quadrant requires administration of a local
anesthetic. Which nerve block injection will NOT provide anesthesia to the area? -
Answers -Inferior alveolar
Proper ultrasonic scaling technique is BEST described by which of the following? -
Answers -Light stroke pressure and multidirectional strokes
,Infection of a primary tooth may cause - Answers -Turner's spot
Alginate impressions are displaced from the mouth in a quick continuous movement to
prevent - Answers -distortion of the impression
The main part of the facial nerve leaves the temporal bone in the facial canal through
the - Answers -stylomastoid foramen
Facial asymmetry is commonly associated with - Answers -Bell's palsy
A predominant bacterium in chronic periodontitis is - Answers -P. gingivalis
A person with a history of oral herpes lesions of the lip feels a tingly sensation. The
person should do all of the following, EXCEPT one. Which one is the EXCEPTION? -
Answers -Spend more time in the sun
A patient with congestive heart failure will MOST likely require - Answers -an upright
seating position
All of the following are characteristics of a root planning technique, EXCEPT one. Which
one is the EXCEPTION? - Answers -Lateral pressure becomes progressively heavier
A new patient is found to have a suspect lesion covering one half of the floor of the
mouth and part of the ventral surface of the tongue. The lesion is a mixture of velvety-
red areas and white hyperkeratotic-appearing areas. The MOST likely course of action
would be to recommend - Answers -incisional biopsy
Which would be the MOST appropriate treatment for a healthcare worker who is the
victim of a needle stick injury involving a hepatitis B-positive patient? - Answers -
Passive immunization with pooled human gamma globulin
The principal origin of the middle and lower face is the - Answers -mandibular arch
The active ingredient in many prescription in-home whitening kits is - Answers -
carbamide peroxide
Primary herpetic gingivostomatitis - Answers -is characterized by fever, ulcerating
vesicles, and pain
A patient has a non draining periodontal abscess and reminds the dentist that she is
allergic to penicillin. Which of the following drugs could be prescribed by the dentist as
an adjunct to manage the patient's safely? - Answers -Doxycycline (Doxycin)
, Radiographically, a jaw fracture will appear as a radiolucent line. Internal resorption
appears as a radiolucency within the pulp or dentin of a tooth. - Answers -Both
statements are true
For a patient taking medication daily for hypertension and no other conditions, the
dental concern is - Answers -greater chance of syncope
While walking a patient from the reception area to the operatory, the patient becomes
noticeably out of breath. Which of the following actions SHOULD occur next? - Answers
-Allow the patient to rest for a few minutes before proceeding to the chair, review his
medical history, and make treatment decisions based on additional information obtained
from the patient and physician consultation
The dental hygienist has been asked to discontinue instrument sharpening because of
cost concerns. All of the following are concerns associated with use of dull instruments,
EXCEPT one. Which one is the EXCEPTION? - Answers -Infection control
All of the following are true to pit and fissure sealants, EXCEPT one. Which one is the
EXCEPTION? - Answers -Indicated when proximal decay exists
The MOST important thing to remember when sharpening instruments chair side is -
Answers -to use a sterile stone
Oral irrigants are effective for all of the following, EXCEPT one. Which one is the
EXCEPTION? - Answers -Removing attached dental biofilm
Of the following teeth, which one is MOST frequently congenitally missing? - Answers -
Maxillary lateral incisor
During an extraoral examination, swollen lymph nodes are detected beneath the chin.
Which lymph nodes are these? - Answers -Submental
The maximum accumulated dose of radiation that a 38-year-old dental hygienist should
receive is - Answers -100 Rem
The ideal angle for insertion of a curette into a periodontal pocket in preparation for a
scaling stroke is - Answers -0 degrees
The need to increase the dose of a drug to produce the same drug effect is called -
Answers -drug tolerance
An isolated port-hole defect in bone that exposes the underlying root of the tooth is
referred to as a - Answers -fenestration
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