DH 101 Final Exam with Accurate
Solutions
The loss of tooth substance by a chemical process that does not involve known
bacterial action is known as: - ANSWER-Erosion
A defect that occurs as a result of a disturbance in the formation of the organic enamel
matrix is known as: - ANSWER-Enamel hypoplasia
During an exam you notice that your patient's left mandibular second premolar (#20) is
facial to the maxillary left second premolar (#13); this condition is called: - ANSWER-
Cross-bite
Suppuration is the formation: - ANSWER-Pus
A pocket is a healthy sulcus: - ANSWER-False
A pocket has an inner wall of enamel, or enamel and cementum; and another wall of
sulcular epithelium: - ANSWER-True
When should you typically schedule continuing care appointments for your patients: -
ANSWER-As needed
Remineralizing tooth surfaces should not be scraped or altered in any way. Which of the
following techniques would be the most acceptable way to detect coronal caries on a
demineralized surface: - ANSWER-Blunt probe
Which area-specific Gracey curette would be used for the distal of tooth #31? -
ANSWER-Gracey 13/14
What is not a source for determining standard of care in a legal dispute: - ANSWER-
Opinion of the dental staff of the clinic in question
Which hepatitis virus comes from contaminated meat/or water with feces, and other
contaminated food/drinks? - ANSWER-Hepatitis A
What is an obturator? - ANSWER-A prosthesis designed to close a congenital or
acquired opening such as a cleft of the hard palate, resin based and retainer clasps that
provide stability, depending on the location of the defect, it may extend to include the
anterior prosthetic teeth
, What are the two types of dental caries described by location: - ANSWER-Pit and
fissure, and smooth surface
What are signs of health in the gingiva? - ANSWER-Pale pink color, fit snugly around
the tooth, knife-edged margin, firm when palpated
Floss cleft is created by using the floss correctly - ANSWER-False
Stillman's cleft is localized recession that may be in a V-shape that extends several
millimeters toward the mucogingival junction - ANSWER-True
Gingivitis occurs frequently in children but is usually reversible without having
permanent damage - ANSWER-True
Periodontal disease cannot occur in children - ANSWER-False
What is the shepherd's hook explorer commonly used for: - ANSWER-Examining pits
and tissues and smooth surfaces
Why would a dental hygienist dry supra gingival calculus with an air syringe? -
ANSWER-To facilitate exploring and scaling
A probe is a slender instrument with a rough, pointed tip designed for examination of the
depth and topography of a gingival sulus or periodontal pocket - ANSWER-False
A probe has three parts: the handle, the angled shank, and the working end -
ANSWER-True
What is a pocket? - ANSWER-Diseased gingival sulcus
With molars and premolars, the probe is oriented at the distal line angle for both facial
and lingual application - ANSWER-True
With anterior teeth, the initial insertion may be at the distal line angle or from the midline
of the facial or lingual surfaces - ANSWER-True
The working end of an explorer is _______________ that is circular in cross section and
tappers to a fine sharp point - ANSWER-Slender wire-like metal tip
The periodontal ligament is connective tissue and appears radiopaque in a radiograph -
ANSWER-False
Early furcation involvement may appear as a small radiolucent black area - ANSWER-
True
Solutions
The loss of tooth substance by a chemical process that does not involve known
bacterial action is known as: - ANSWER-Erosion
A defect that occurs as a result of a disturbance in the formation of the organic enamel
matrix is known as: - ANSWER-Enamel hypoplasia
During an exam you notice that your patient's left mandibular second premolar (#20) is
facial to the maxillary left second premolar (#13); this condition is called: - ANSWER-
Cross-bite
Suppuration is the formation: - ANSWER-Pus
A pocket is a healthy sulcus: - ANSWER-False
A pocket has an inner wall of enamel, or enamel and cementum; and another wall of
sulcular epithelium: - ANSWER-True
When should you typically schedule continuing care appointments for your patients: -
ANSWER-As needed
Remineralizing tooth surfaces should not be scraped or altered in any way. Which of the
following techniques would be the most acceptable way to detect coronal caries on a
demineralized surface: - ANSWER-Blunt probe
Which area-specific Gracey curette would be used for the distal of tooth #31? -
ANSWER-Gracey 13/14
What is not a source for determining standard of care in a legal dispute: - ANSWER-
Opinion of the dental staff of the clinic in question
Which hepatitis virus comes from contaminated meat/or water with feces, and other
contaminated food/drinks? - ANSWER-Hepatitis A
What is an obturator? - ANSWER-A prosthesis designed to close a congenital or
acquired opening such as a cleft of the hard palate, resin based and retainer clasps that
provide stability, depending on the location of the defect, it may extend to include the
anterior prosthetic teeth
, What are the two types of dental caries described by location: - ANSWER-Pit and
fissure, and smooth surface
What are signs of health in the gingiva? - ANSWER-Pale pink color, fit snugly around
the tooth, knife-edged margin, firm when palpated
Floss cleft is created by using the floss correctly - ANSWER-False
Stillman's cleft is localized recession that may be in a V-shape that extends several
millimeters toward the mucogingival junction - ANSWER-True
Gingivitis occurs frequently in children but is usually reversible without having
permanent damage - ANSWER-True
Periodontal disease cannot occur in children - ANSWER-False
What is the shepherd's hook explorer commonly used for: - ANSWER-Examining pits
and tissues and smooth surfaces
Why would a dental hygienist dry supra gingival calculus with an air syringe? -
ANSWER-To facilitate exploring and scaling
A probe is a slender instrument with a rough, pointed tip designed for examination of the
depth and topography of a gingival sulus or periodontal pocket - ANSWER-False
A probe has three parts: the handle, the angled shank, and the working end -
ANSWER-True
What is a pocket? - ANSWER-Diseased gingival sulcus
With molars and premolars, the probe is oriented at the distal line angle for both facial
and lingual application - ANSWER-True
With anterior teeth, the initial insertion may be at the distal line angle or from the midline
of the facial or lingual surfaces - ANSWER-True
The working end of an explorer is _______________ that is circular in cross section and
tappers to a fine sharp point - ANSWER-Slender wire-like metal tip
The periodontal ligament is connective tissue and appears radiopaque in a radiograph -
ANSWER-False
Early furcation involvement may appear as a small radiolucent black area - ANSWER-
True
