This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
Adhesive remnant index score 3? 
Select and explain. 
A. 3/4remnant, B. 1/4 remnant, C. Not remnant, D. Complete remnant
D: Complete remnant
Answer: D: Complete remnant 
Explanation: 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.