Violation

Which of the following root surfaces are most likely to have flutings/concavities that will make thorough root debridement difficult?

Mesial of teeth 1.4/2.4.

Mesial of teeth 1.3/2.3.

Mesial of teeth 1.2/2.2.

Mesial of teeth 1.1/2.1.

Please describe the matter of abuse