CSAR Quiz Flashcards
what is the critical factor when retaining indirect restorations adhesively?
Bonding to enamel?
Ceramic is more rigid than composite?
yes
true
A preparation height of 2mm is sufficient to predictably mechanically retain a crown?
no
must be 4mm
Does retaining tooth structure at the cusp tip prolong the lifespan of the tooth?
no
Can Emax (lithium disilocate) be etched?
yes
true or false?
most endodontically treated teeth are xLA due to failure of endo?
false
non root filled teeth must be vitality tested prior to preparation for an indirect restoration?
true
All extra-coronal restorations are indirect ?
false
all indirect restorations are extra-coronal restorations?
false
Anterior teeth that have been root filled should be crowned?
false
an estimate for teeth that lose vitality following crown prep is 10-15%?
yes
Teeth suffering from cracked tooth syndrome should be crowned to hold the crack together ?
False
Total occlusal convergance should be at least 20 degrees?
no
6-12
When prepping for a veneer
a light chamfer margin is appropriate?
true
if a patient with active caries would benefit from a crown, which would also improve the appearance of their front tooth, should be the first treatment to be carried out?
no
never crown caries
