Adhesive remnant index score 3?

Artun and Bergland used an adhesive remnant index system to evaluate the amount of adhesive left on tooth after debracketing. This index was developed on basis of a pilot study of 20 extracted teeth and criteria includes Score 0... No adhesive left on tooth Score 1...less than half of adhesive left on tooth Score 2...more than Half of adhesive left on tooth Score 3...all adhesive left on tooth with a distinct impression of bracket mesh.