The average person can exert 150-200 lbs (70-90 kg) of muscular force on his or her posterior teeth, which is approximately nine times the amount of force that can be exerted in the anterior.
A fourth situation in which a crown would be the restoration of choice is when a patient desires to have the appearance of his or her smile improved but when partial coverage (i.e., a veneer/laminate) is not an option for one or more reasons.