DA Chapter 43 Recall Questions
Terms in this set (25)
What professional organization evaluates a new dental material?
The Council and Dental Materials, Instruments and Equipment
What type of reaction does a dental material undergo when distortion occurs?
What happens to a dental material when it is exposed to hot and cold?
What is a source of galvanic action?
two different or dissimilar metals are present in the oral cavity and saliva containing salt
What are the four properties that must be considered in the application of a dental material?
flow, adhesion, retention and curing
How does an auto-cured material harden or set up?
result of a chemical reaction of the materials once mixed together.
What metals make up the alloy powder in amalgam?
silver, tin, copper, and zinc
Would dental amalgam be placed in anterior or posterior teeth?
What does copper provide to an amalgam restoration?
strength and corrosion resistance
Where do you dispose of amalgam scraps?
wide-mouthed, container that is marked "non-contact amalgam waste for recycling" with a well sealed lid
How is the amalgam triturated?
in a amalgamator
How long would you triturate Sybraloy?
What is the common term used for dimethacrylate?
What filler type of composite resin is the strongest and is used most often for posterior restorations?
When composite resins are light-cured, what factors might contribute to the need for a longer curing time for the material?
manufacturer's instructions, thickness and size of the restoration (when larger quantities of the material are being placed), each increment is cured before the next is placed, shade of the restorative material used (darker the shade the longer the required curing time)
What item is used to determine the color of composite for a procedure?
What is the final step in finishing a composite resin?
polishing paste applied to a rubber cup
What are some of the most common uses of glass ionomer materials?
primary teeth, final restoration in non stressed areas such as class V and root surfaces, sealants, core material for buildups. provisional restorations
What could contaminate the setting of glass ionomers?
What does the abbreviation IRM stand for?
intermediate restorative material
What temporary restorative material would be selected for a class II cavity preparation?
What material would you use to prepare for provisional coverage?
How many drops of monomer per tooth is recommended when acrylic resin is mixed for a provisional restoration?
What are the three noble metals used in dentistry?
gold (Au), palladium (Pd), platinum(Pt)
What type of restoration is made in the dental laboratory?
indirect restorations, castings