NBDHE Mock Board Exam 249
Questions and Answers
Which has the highest powder-to-water ratio?
Plaster
Type III stone
Type IV stone
Type V stone
type V (die stone)
Patients with uncontrolled diabetes might exhibit each of the following conditions
EXCEPT one.
-Generalized widening of PDL space
-Peripheral neuropathy
-Polyuria
-Retinopathy
generalized widening of PDL space
Which is the handpiece primarily used for intraoral polishing?
a. Belt-driven
b. High speed
c. Low speed
d. Porte polisher
low speed
A 10-year old exhibits mild dental fluorosis and resides in a non-fluoridated area.
Which most accurately describes the rationale for this condition?
a. Received professionally applied fluoride therapy
b. Recently moved to the area
c. Uses a daily fluoride rinse
d. Uses an over-the-counter brush-on gel daily
Uses a daily fluoride rinse
A patient has a removable partial denture which replaces the missing mandib. teeth.
Which tissue is best suited to support this appliance?
a. Alveolar mucosa
b. Lining mucosa
c. Masticatory mucosa
d. Specialized mucosa
lining mucosa
Which is most likely the cause of erosion located on several cusps of mandibular
molars and premolars?
a. Highly-carbonated diet
,b. GERD
c. Medications
d. Poor oral hygiene
Highly-carbonated diet
Tonic-clonic seizure phases are:
a. alternating spasms of rigidity and relaxation
b. typical of petit mal epilepsy
c. urinary bladder muscle spasms
d. usually limited to a single limb
alternating spasms of rigidity and relaxation
Tooth 30 presents with Class III furcation involvement. Which Gracey curette design
is best suited for scaling the mesial aspect of the distal root?
a. Gracey 5/6
b. Gracey 7/8
c. Gracey 13/14
d. Gracey 15/16
e. Gracey 17/18
Gracey 15/16
Which is formed when a triangular ridge from a facial cusp tip joins a triangular ridge
from a lingual cusp tip?
a. developmental groove
b. fissure
c. oblique ridge
d. transverse ridge
transverse ridge
To be able to provide informed consent, each of the following must be
communicated to the patient prior to exposing dental radiographs EXCEPT--
a. Benefits expected from the radiographic exam.
b. Documentation of satisfactory inspections of the radiographic equipment.
c. Possible risks to health associated with not having the radiographic exam.
d. Possible risks to health from the radiographic exam.
documentation of satisfactory inspections of the radiographic equipment
The quality of a sealant is most effectively examined with--
an explorer
articulating paper
mouth mirror
ultraviolet lighting
an explorer
Which is likely to be the most effective strategy to employ for calming a patient who
has entered the dental office obviously very anxious and fearful?
a. Ask the patient to discuss their source of concern
b. Move the patient into the operatory and begin tx quickly
c. Tell the patient not to be afraid
d. Tell the patient to relax and leave everything in your hands
,ask the pt to discuss their source of concern
Interproximal overhanging amalgam restorations--
a. act primarily as a plaque retentive element
b. are caused by over contouring the restoration
c. are considered a primary etiologic factor in periodontitis
d. must not be altered during the initial phase of perio tx
act primarily as a plaque retentive element
Which is considered the dental hygiene standard of care?
a. Guidelines established by the insurance carrier.
b. The accepted measure of care conforming to established norms.
c. The level of care established by the practice.
d. The level of care expected by the patient.
accepted measure of care conforming to established norms
Soon after administration of a local anesthetic, the patient exhibits hives and intense
itching. The patient is experiencing a/an--
a. allergic reaction
b. hematoma
c. overdose
d. psychosomatic reaction
allergic reaction
A 13-yr old patient has facially-inclined maxillary incisors. This indicates which
classification of malocclusion?
a. I
b. II, Division I
c. II, Division II
d. III
II, Division I
Air is used to deflect the free gingival margin in order to detect--
a. root fracture
b. smooth root surfaces
c. subgingival calc
d. supragingival calc
subgingival calc
A concentration of fluoride in the community water that offers the minimal risk of
fluorosis while still providing max protection from caries is--
a. 0.5 ppm
b. 0.7 ppm
c. 0.17 ppm
d. 0.05 ppm
0.7 ppm
A young patient has the night time habit of thumb sucking. The hygienist will work
with this patient to break the habit. Which will have the strongest influence on this
child?
, a. Child's desire to quit
b. Hygienist's ability to motivate the child
c. Hygienist's attitude
d. Parent's cooperation and understanding
Child's desire to quit
Radiolucencies which can be seen on a maxillary incisor radiograph include each of
the following EXCEPT--
a. Maxillary sinus
b. Median palatine suture
c. Nasal fossa
d. Nasopalatine foramen
maxillary sinus
When the inflammatory process destroys the supporting alveolar bone first, and then
spreads laterally to the alveolar bone proper (lamina dura), which type of bone loss
and pockets will occur?
a. Horizontal/infrabony
b. Horizontal/suprabony
c. Vertical/infrabony
d. Vertical/suprabony
Horizontal/suprabony
Which describes a Gracey curet?
a. Has a blade angulated 90-100 degrees to the shank
b. Has a sharp point that can traumatize tissue
c. Has one lateral cutting edge
d. Is considered a universal curet
has one lateral cutting edge
The average loss of attachment is 2.5mm is a statement of--
a. distribution
b. extent
c. prevalence
d. severity
extent
Which condition most significantly influences the progression of periodontal disease?
a. atherosclerosis
b. diabetes mellitus
c. lupus erythematosus
d. pregnancy
diabetes mellitus
Which is the extraoral projection used to evaluate the maxillary sinuses?
a. lateral cephalometric
b. reverse town
c. submentovertex
d. water
lateral cephalometric
Questions and Answers
Which has the highest powder-to-water ratio?
Plaster
Type III stone
Type IV stone
Type V stone
type V (die stone)
Patients with uncontrolled diabetes might exhibit each of the following conditions
EXCEPT one.
-Generalized widening of PDL space
-Peripheral neuropathy
-Polyuria
-Retinopathy
generalized widening of PDL space
Which is the handpiece primarily used for intraoral polishing?
a. Belt-driven
b. High speed
c. Low speed
d. Porte polisher
low speed
A 10-year old exhibits mild dental fluorosis and resides in a non-fluoridated area.
Which most accurately describes the rationale for this condition?
a. Received professionally applied fluoride therapy
b. Recently moved to the area
c. Uses a daily fluoride rinse
d. Uses an over-the-counter brush-on gel daily
Uses a daily fluoride rinse
A patient has a removable partial denture which replaces the missing mandib. teeth.
Which tissue is best suited to support this appliance?
a. Alveolar mucosa
b. Lining mucosa
c. Masticatory mucosa
d. Specialized mucosa
lining mucosa
Which is most likely the cause of erosion located on several cusps of mandibular
molars and premolars?
a. Highly-carbonated diet
,b. GERD
c. Medications
d. Poor oral hygiene
Highly-carbonated diet
Tonic-clonic seizure phases are:
a. alternating spasms of rigidity and relaxation
b. typical of petit mal epilepsy
c. urinary bladder muscle spasms
d. usually limited to a single limb
alternating spasms of rigidity and relaxation
Tooth 30 presents with Class III furcation involvement. Which Gracey curette design
is best suited for scaling the mesial aspect of the distal root?
a. Gracey 5/6
b. Gracey 7/8
c. Gracey 13/14
d. Gracey 15/16
e. Gracey 17/18
Gracey 15/16
Which is formed when a triangular ridge from a facial cusp tip joins a triangular ridge
from a lingual cusp tip?
a. developmental groove
b. fissure
c. oblique ridge
d. transverse ridge
transverse ridge
To be able to provide informed consent, each of the following must be
communicated to the patient prior to exposing dental radiographs EXCEPT--
a. Benefits expected from the radiographic exam.
b. Documentation of satisfactory inspections of the radiographic equipment.
c. Possible risks to health associated with not having the radiographic exam.
d. Possible risks to health from the radiographic exam.
documentation of satisfactory inspections of the radiographic equipment
The quality of a sealant is most effectively examined with--
an explorer
articulating paper
mouth mirror
ultraviolet lighting
an explorer
Which is likely to be the most effective strategy to employ for calming a patient who
has entered the dental office obviously very anxious and fearful?
a. Ask the patient to discuss their source of concern
b. Move the patient into the operatory and begin tx quickly
c. Tell the patient not to be afraid
d. Tell the patient to relax and leave everything in your hands
,ask the pt to discuss their source of concern
Interproximal overhanging amalgam restorations--
a. act primarily as a plaque retentive element
b. are caused by over contouring the restoration
c. are considered a primary etiologic factor in periodontitis
d. must not be altered during the initial phase of perio tx
act primarily as a plaque retentive element
Which is considered the dental hygiene standard of care?
a. Guidelines established by the insurance carrier.
b. The accepted measure of care conforming to established norms.
c. The level of care established by the practice.
d. The level of care expected by the patient.
accepted measure of care conforming to established norms
Soon after administration of a local anesthetic, the patient exhibits hives and intense
itching. The patient is experiencing a/an--
a. allergic reaction
b. hematoma
c. overdose
d. psychosomatic reaction
allergic reaction
A 13-yr old patient has facially-inclined maxillary incisors. This indicates which
classification of malocclusion?
a. I
b. II, Division I
c. II, Division II
d. III
II, Division I
Air is used to deflect the free gingival margin in order to detect--
a. root fracture
b. smooth root surfaces
c. subgingival calc
d. supragingival calc
subgingival calc
A concentration of fluoride in the community water that offers the minimal risk of
fluorosis while still providing max protection from caries is--
a. 0.5 ppm
b. 0.7 ppm
c. 0.17 ppm
d. 0.05 ppm
0.7 ppm
A young patient has the night time habit of thumb sucking. The hygienist will work
with this patient to break the habit. Which will have the strongest influence on this
child?
, a. Child's desire to quit
b. Hygienist's ability to motivate the child
c. Hygienist's attitude
d. Parent's cooperation and understanding
Child's desire to quit
Radiolucencies which can be seen on a maxillary incisor radiograph include each of
the following EXCEPT--
a. Maxillary sinus
b. Median palatine suture
c. Nasal fossa
d. Nasopalatine foramen
maxillary sinus
When the inflammatory process destroys the supporting alveolar bone first, and then
spreads laterally to the alveolar bone proper (lamina dura), which type of bone loss
and pockets will occur?
a. Horizontal/infrabony
b. Horizontal/suprabony
c. Vertical/infrabony
d. Vertical/suprabony
Horizontal/suprabony
Which describes a Gracey curet?
a. Has a blade angulated 90-100 degrees to the shank
b. Has a sharp point that can traumatize tissue
c. Has one lateral cutting edge
d. Is considered a universal curet
has one lateral cutting edge
The average loss of attachment is 2.5mm is a statement of--
a. distribution
b. extent
c. prevalence
d. severity
extent
Which condition most significantly influences the progression of periodontal disease?
a. atherosclerosis
b. diabetes mellitus
c. lupus erythematosus
d. pregnancy
diabetes mellitus
Which is the extraoral projection used to evaluate the maxillary sinuses?
a. lateral cephalometric
b. reverse town
c. submentovertex
d. water
lateral cephalometric
