unit 1 PIMA
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| Corrosion | The roughness and pitting of a metal alloy due to chemical attack, contamination,etc
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| Wetting | The ability of the liquid to flow easily over the surface and to come into contact with all small roughnesses present.
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| Ductility | The ability of a material to withstand permanent deformation under a tensile load without rupture.
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| Malleability | The ability of a material to withstand permanent deformation under compressive load without rupture.
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| Linear Coefficient of Thermal Expansion | The increase in length of a material, per unit length, when the temperature is increased 1° Centigrade.
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| Adhesion | The force which causes attraction between unlike molecules.
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| Exothermic | A chemical reaction that gives off (releases) heat.
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| Soluble | Able to dissolve influence.
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| Microleakage | When fluids, microorganisms, and debris from the mouth penetrate the outer margin of the restoration and progress down the walls of the cavity preparation.
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| Mechanical Retention | How a material is held in place by means such as the shape of the cavity preparation, etching the surface, or placing retentive grooves.
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| Brittleness | The property of being easy to break or rupture.
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| Force | Any push or pull on matter.
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| Galvanism | Small currents created whenever two metals are present in the oral cavity.
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| Hardness | The resistance of a material to indentation or penetration.
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| Physical condition of the oral cavity which need consideration when a restoration is being placed include: | The acidity (pH) in the mouth, which may cause metallic restorations to tarnish or corrode and nonmetallic restorations to deteriorate.
Themperature fluctuations.
Biting forces during mastication.
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| TRUE | A liquid that does not flow easily and is the consistency of a thick or heavy syrup.
A high viscous adhesive will not flow easily and will not be as effective in wetting a surface as would an adhesive of lower viscosity.
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| The color blue on the chemical warning lable indicates... | Health hazard
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| TorF? The National Fire Protection Association's color and number method is used on chemical warning labels. | True
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| TorF? The higher is number the greater the danger (for red, blue, and yellow) | True
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| TorF? The color red identifies the fire hazard | True
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| TorF? Letters are used to identify the PPE needed | True
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| TorF? The color white identifies the PPE needed | True
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| Which federal agency is concerned with the health and safty of employees? | OSHA
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| What is MSDS? | Data that contains safe handling, disposal, and precautions of materials.
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| The ________ regulates the disposal of hazardous waste... | EPA
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| TorF? When a hazardous chemical is placed in a separate container for use on another day, it must be labeled with a copy of the original label or a new label... | True
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| Inspections of dental facilities relating to workers safety are conducted by... | OSHA
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| A dentist must provide training for employees.. 4 answers | Within 30 days of employment.
Whenever a new hazardous material is introduced into the workplace.
Whenever procedures for safe handling and emergencies are modified.
Once per year.
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| Safety glasses, gloves, and face masks are examples of... | PPE
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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