CASE STUDY Fig. 2 “...it is my contention that the root must be positioned under the clinical crown. If this is accomplished prior to de-bonding and held in position for a period of time this type of relapse may be minimized or eliminated altogether.” either labial root torque (Fig. 3) or lingual root torque (Fig. 4). The GTS may be positioned in the horizontal plane of the wire for a full expres-sion of torque, 125-150 gms of force (Fig. 5) or at 45 degrees to the hori-zontal plane of the wire for a partial expression of torque, 75-90 gms of force (Fig. 6). The following directives will explain in detail how best to use the GTS: Fig. 3 Fig. 5 Fig. 6 Fig. 4 www.orthodontics.com January/February 2011 23
Journal of the American Orthodontic Society January - February 2011: Page 23
