DEN185 Week 2 Study Guide Flashcards
True or False:
When a matrix strip is used for a composite restoration, the strip should be left in place while the dentist completes the final shaping and finishing of the restoration.
False
True or False:
Self-etch bonding agents replace the smear layer with resin.
False
True or False:
When a crown matrix form is used, the restorative material should be added to the crown from before it is placed on the tooth.
True
True or False:
Etchants enhance retention and bonding between the tooth surface and dental materials.
True
True or False:
Composites bond efficiently to dentin and enamel in cavity preparation, unlike amalgam.
True
True or False:
A micro-fill composite would be used for a class IV (4) restoration for an adult patient.
False
True or False:
When placing composite light-cured resin materials into a cavity preparation in increments, the operator should wait until the cavity preparation is completely filled before applying the curing light.
False
True or False:
Instruments are grouped on their trays according to their function.
True
True or False:
Composite restorative materials are placed directly into the cavity preparation.
True
True or False:
Composer cements are sued to cement all types of dental restorations for primary teeth and on class III and V restorations for permanent teeth.
True
True or False:
Compomers are a cross between composites and glass ionomers in characteristics and properties.
True
True or False:
Sterilization bags contain a steam vapor dot that changes color from pink to black/brown when instruments have run through sterilization process.
True
When performing a class III composite restoration, what should the operator do next after the cavity preparation is filled and cured?
Remove the matrix strip
What would be the disadvantage of flowable composites?
They shrink more than hybrid composites.
What type of consistency does packable composite have?
putty-like
After setting a glass ionomer restoration, the operator should apply _________.
fluoride
Hybrid glass ionomers are used for _______ and _______ restorations.
class III & class V
A _______ restoration should require minimal finishing because it is a gingival, one-third restoration.
class V
When choosing a shade, which hue group should you select if the tooth is a slightly reddish yellow color?
A-shade
When determining the shade of the composite restoration, you should ________________________.
Compare a shade guide against a clean tooth.
Which type of restoration would require a crown matrix from?
class IV
One reason matrix strips are used is to ______________________.
hold the composite material under pressure as it cures.
A matrix must be used for _________ cavity preparations.
class III
When applying etching for a composite restoration, it should be applied to both ___________ & __________.
enamel & dentin
Dentin bonding is more challenging than enamel bonding because dentin has a ______________________.
high water content and is more organic than inorganic.
When placing a light-cure glass ionomer cavity liner, what will the operator do next after covering the deepest portion of the cavity preparation and removing any excess liner for the enamel walls with an explorer?
cure the liner
Quartz may be included as a component of a composite as an inorganic filler material to provide ______________________.
strength and wear resistance
Single-application container of composite restorative material:
compule
Composites are mainly packaged as a one-paste system and are __________.
light cured
A matrix strip may be made of _____________.
celluloid
A common organic polymer matrix contained in composite is _________.
bis/gma
