A casting may fail to seat on the prepared tooth due to all of the following factors except _____.
Occlusal reduction would not affect the ability to seat a casting. However, temporary cement, heavy proximal contacts, or tooth undercuts could keep the casting from seating completely.
Temporary cement still on the prepared tooth after the temporary restoration has been removed.
Proximal contact(s) of casting too heavy/tight.
Undercuts present in prepared tooth.
The occlusal of the prepared tooth was underreduced.