Violation
When a simple tipping force is applied to the crown of a single-rooted tooth, the centre of rotation is located
within the apical half of the root
within the cervical one third of the root.
at the cervical line.
at the apex.
When a simple tipping force is applied to the crown of a single-rooted tooth, the centre of rotation is located
within the apical half of the root
within the cervical one third of the root.
at the cervical line.
at the apex.