Periodontal Instrumentation & Seating (FINAL REVIEW) Flashcards
Seating position for surfaces toward:
8-9:00
Seating position for surfaces away:
11-12:00
What is the seating position exception?
maxillary anterior facial may be completely done at 11-12:00
Anterior sickle scaler should only be used:
supragingivally
How should the anterior sickle scaler shanks/handle be held?
parallel to long axis of the tooth
Describe the stroke used with an anterior sickle scaler:
short and overlapping strokes
Where should you begin on the tooth when using an anterior sickle scaler?
begin at midline and into interproximal
Describe the instrument design for an anterior sickle scaler:
- straight, rigid shank
- 2 cutting edges on each working-end
- pointed tip (hence “sickle”)
The anterior sickle scaler tip is ___ in cross section
triangular
What portion of the anterior sickle scaler is used for calculus removal?
terminal 1/3
When adapting the anterior sickle scaler, the shank and handle should be:
parallel to the long axis of the tooth
What is the proper angulation (cutting-edge against the tooth) for anterior sickle scalers?
45-90 degrees
Overangulation of an anterior sickle scaler (greater than 90 degrees) will result in:
burnished calculus and/or tissue laceration
Underangulation of an anterior sickle scaler (less than 45 degrees) will result in:
burnished calculus
Light grasp, minimal pressure stroke (similar to perio explorer) - when using an anterior sickle scaler is called:
exploratory stroke
When using an anterior sickle scaler, the act of tightening the grasp and applying lateral pressure to the tooth on the coronal stroke:
working stroke
What is the difference in design between the anterior and posterior sickle scaler?
posterior sickle scaler has a complex shank (additional bend)
Where can a posterior sickle scaler be used?
posterior teeth, supra gingival interproximal areas only (may go SLIGHT subG)
How should the terminal shanks be held of a posterior sickle scaler?
parallel to long axis of tooth
Describes the strokes used with a posterior sickle scaler:
short and overlapping strokes
Where should you begin on the tooth when using a posterior sickle scaler?
begin at line angle and work interproximal (NO BUCCAL OR LINGUAL SURFACE)
What is the purpose of a periodontal explorer?
detection of sub gingival calculus
Describe the working strokes of a periodontal explorer:
short, walking, overlapping strokes
The terminal shank of the periodontal explorer should be:
held parallel to the long axis of the tooth
Where on an anterior tooth should you begin when using a periodontal explorer?
midline
When using a periodontal explorer-
In anterior teeth, ____ is parallel to the long axis of the tooth
In posterior teeth, ____ is held parallel to the long axis of the tooth
handle
terminal shank
In what situation would you FLIP a periodontal explorer?
Anterior teeth