Module 16: Subgingival Calculus Removal || With 10
Module 16: Subgingival Calculus Removal || with 10
Exam (elaborations)
Module 16: Subgingival Calculus Removal || with 100% Error-free Answers.
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Module 16: Subgingival Calculus Removal || with 10
Institution
Module 16: Subgingival Calculus Removal || With 10
What are calculus deposits that are located apical to (below) the gingival margin? correct answers subgingival calculus deposits
What are other names for subgingival calculus? correct answers submarginal or serumal calculus
What are the locational descriptions of subgingival calculus? correct...
Module 16: Subgingival Calculus Removal || with 100%
Error-free Answers.
What are calculus deposits that are located apical to (below) the gingival margin? correct
answers subgingival calculus deposits
What are other names for subgingival calculus? correct answers submarginal or serumal calculus
What are the locational descriptions of subgingival calculus? correct answers localized or
generalized
Subgingival deposits may be found anywhere on the tooth surface, but where are they most
commonly found? correct answers 1. just apical to the CEJ
2. on line angles
3. within furcation areas and root concavities
What is typically the shape of subgingival calculus deposits? correct answers flattened (possibly
guided by the pressure of the pocket wall)
What is characteristic of the surface of a calculus deposit at the microscopic level? correct
answers -quite irregular in contour
-always covered with disease-causing bacteria
As dental calculus deposits build up, what happens? correct answers more areas of plaque
retentive biofilm form that are difficult or impossible for the patient to clean
Dental calculus plays a significant role as a local contributing factor in what? correct answers
periodontal disease
Why does subgingival calculus removal require more skill than supragingival removal? correct
answers because the clinician cannot see the working-end of the instrument under the gingival
margin
For successful subgingival instrumentation, the clinician must rely on what? correct answers
their sense of touch (make this sense dominant)
To picture the placement of the working-end against the root surface, the hygienist must
mentally picture what 3 things? correct answers 1. cross section of the tooth
2. periodontium
3. instrument working end
What are the tissues that surround and support a tooth in the dental arch known as? correct
answers periodontium
What are the 4 components of the periodontium? correct answers 1. gingiva
, 2. periodontal ligament
3. cementum
4. alveolar bone
Much subgingival instrumentation is performed on ______ periodontium. correct answers
unhealthy
What is the act of gently sliding the working-end of an explorer or curet beneath the gingival
margin into the gingival sulcus or periodontal pocket? correct answers insertion
What should be in contact with the tooth surface during insertion? correct answers working-end
What are the primary calculus removal instruments for subgingival instrumentation? correct
answers curets
During insertion, what should the face-to-tooth surface angulation be? correct answers between 0
and 40 degrees
What is the 0-40 degree angle used for insertion referred to as? correct answers closed angle
(since the face is closed against the tooth surface)
What is the area of the crown where the working-end is positioned prior to insertion? correct
answers get ready zone
Where is the "get ready zone" located on the tooth? correct answers in the middle-third of the
crown
What are the steps to prepare for subgingival instrumentation? correct answers 1. me
2. establish finger rest
3. get ready
4. lower instrument handle
5. insert
6. return fulcrum and handle to upright position
What is the removal or disruption of plaque biofilm, it byproducts, and biofilm retentive calculus
deposits from coronal tooth surfaces and root surfaces to re-establish periodontal health and
restore balance between the bacterial flora and the host's immune responses? correct answers
periodontal instrumentation
What is the objective of subgingival periodontal instrumentation instrumentation? correct
answers physical removal of calculus deposits, microorganisms, and their products to to prevent
and treat periodontal infections
Most subgingival plaque biofilm located within periodontal pockets cannot be reached by what?
correct answers toothbrushes, floss, or mouthrinses
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