Violation

Orthodontic tooth movement is generally more efficient with adolescents than in adults because of the difference in 1. tissue/bone reaction. 2. the rate of growth. 3. the quality of cooperation. 4. the crown/root ratio.

All of the above.

(4) only

(2) and (4)

(1) and (3)

(1) (2) (3)

Please describe the matter of abuse