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numbers of paths along
removed
Retention is improved by geometrically limiting the _which a restoration can be _ from the tooth preparation
only one path
Maximum retention is achieved when there is _.
long
parallel
retention
A full veneer preparation with_, _ axial walls and grooves would produce such _
retention
removed
infinite number
short, overtapered preparation will not have _ because the restoration could be_ along an _ of paths
axial wall
oblique angle
resistance
A groove whose walls meet the _at an_ does not provide the necessary _
proximal box
resistance
rotating forces
A _ must be treated in a similar manner. If its facial and lingual walls form oblique angles with its pulpal wall, there will not be adequate _to _
pulpal wall
90 degrees
perpendicular
forces
The facial and lingual walls must meet the_ at angles near_ so that these walls will be _ to any _ that would tend to rotate the restoration
