Dentaltown January 2017 - 102

continuing
education

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The FDA has designated dental hand instruments as Class I medical
devices. Class I medical devices are defined as:
A) Instruments that mechanically enter the body tissue and have
the ability to positively or negatively alter that tissue.
B) Instruments that mechanically enter the body tissue and
chemically alter the tissue.
C) Instruments that do not alter body tissue in any way.
D) Instruments that only touch the mucosal tissue.
The benefits of a sharp hand instrument working edge include
complete calculus removal, instrumentation stability, efficiency and
patient comfort. A sharp working edge does not benefit the clinician.
A) Statement 1 is true, Statement 2 is true.
B) Statement 1 is true, Statement 2 is false.
C) Statement 1 is false, Statement 2 is true.
D) Statement 1 is false, Statement 2 is false.
When sharpening an instrument, the goal is:
A) A sharp edge
B) To achieve a good speed at which the edge can be sharpened
C) To use the coarsest stone available
D) To restore the working edge and to maintain angulation and
contour of the original instrument
When employing a manual sharpening technique, the face of the
instrument and the stone should be at what degree of angulation?
A) 90
B) 70
C) 110
D) 135
An India stone and an Arkansas stone do not require lubrication
during use. A ceramic stone requires oil during use.
A) Statement 1 is true, Statement 2 is true.
B) Statement 1 is true, Statement 2 is false.
C) Statement 1 is false, Statement 2 is true.
D) Statement 1 is false, Statement 2 is false.

Which of the following stones is available in medium coarseness?
A) Arkansas stone
B) India stone
C) Ceramic stone
D) B and C

A two-step sharpening technique can be used to smooth the edges of
the working end. When used, this method:
A) Removes more metal and decreases the useful life
of the instrument
B) Adds metal burs that cannot be detected
C) Does not affect the width of the working end
D) Smooths the face of the working end.

Retipping working ends of instruments is not recommended by the
FDA because of the potential for:
A) Breaches in infection control
B) Unbalanced working ends
C) Improperly shaped shanks
D) All of the above

Which of the following are considered advantages of sharpen-free
metallurgy?
A) A harder metal that lasts about as long as stainless steel
curettes without sharpening during that time frame
B) Ergonomically advantageous scaling technique
C) Patient comfort
D) All of the above

10) The modified hand scaling technique utilized with sharpen-free
metallurgy is similar to:
A) Stainless steel instruments
B) Magnetostrictive scaling
C) A and B
D) None of the above

Legal Disclaimer: The CE provider uses reasonable care in selecting and providing content that is accurate. The CE provider does not represent that the instructional materials are error-free or that
the content or materials are comprehensive. Any opinions expressed in the materials are those of the author of the materials and not the CE provider. Completing one or more continuing education
courses does not provide sufficient information to qualify participant as an expert in the field related to the course topic or in any specific technique or procedure. The instructional materials are
intended to supplement, but are not a substitute for, the knowledge, expertise, skill and judgment of a trained health-care professional.
Licensure: Continuing education credits issued for completion of online CE courses may not apply toward license renewal in all licensing jurisdictions. It is the responsibility of each registrant to
verify the CE requirements of his/her licensing or regulatory agency.

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Table of Contents for the Digital Edition of Dentaltown January 2017