Why Should Handpieces Be Heat Sterilized Rather Than Wiped Off

question 33

Multiple Choice

Why should handpieces be heat sterilized rather than wiped off with a disinfectant between patients?

• A)Because wiping off the outside will cause the handpiece to rust
• B)Because wiping off the outside will not kill the microbes that were retracted up inside the handpiece
• C)Because wiping off the outside could allow some of the damaging disinfectant to get inside the handpiece and destroy it
• D)Because heat sterilization will help the internal lubricant spread to all surfaces in the turbine chamber

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Definitions:

Molecular Formula

The type of chemical formula that gives the actual numbers of each type of atom in a molecule. Compare with simplest formula and structural formula.

Lewis Structure

A graphical representation of the valence electrons in molecules, showing how the atoms are bonded together and the lone pairs of electrons.

Orbital Diagram

A visual representation of the electron configuration of an atom or molecule, showing how electrons are distributed among orbitals.

Simplest Formula

A type of chemical formula that gives the smallest whole-number ratio of the component atoms. Compare with molecular formula and structural formula.