![Figure 7.](/ServeContent?url=http%3A%2F%2Fdbm.sagepub.com%2Fcontent%2F4%2F1758736013492529%2FF7.medium.gif)
Figure 7.
Comparison of self-ligating brackets: (a) passive-ligation Damon Q (solid model provided by Ormco), (b) In-Ovation R (solid model provided by GAC) active ligation applies a preload to the wire, and (c) schematic of passive- and active-ligation brackets.