Violation
A tilted molar can be used as a fixed partial denture abutment if 1. it undergoes orthodontic uprighting first. 2. a coping and telescopic crown are used on the abutment. 3. a non-rigid connector is placed in the fixed partial denture. 4. its long axis is within 25° of the long axis of the other abutments.
All of the above.
(1) (2) (3)
(1) and (3)
(2) and (4)
(4) only