Finishing with the preadjusted orthodontic appliance

• Published in: Seminars in orthodontics 2003, Vol.9 (3), p.165-183
• Main Authors: McLaughlin, Richard P, Bennett, John C
• Format: Article
• Language: English
• ISSN: 1073-8746; 1558-4631
• DOI: 10.1016/S1073-8746(03)00034-3

With the preadjusted orthodontic appliance, there is a gradual progression toward finishing, rather than an abrupt stage of tedious wire bending. Therefore, the fewer the errors made as treatment progresses, the less work required during finishing. There are horizontal, vertical and transverse factors to be considered relative to finishing, as well as dynamic, cephalometric and esthetic factors. Horizontally, it is important to establish the correct tip of the anterior and posterior teeth. Adequate torque of the incisors must be controlled and all spaces should be closed, unless restorations are indicated. Vertically, crown lengths, marginal ridge relationships and contact points must be adjusted. Final correction of the curve of Spee must be established. Transversely, arch form and arch wire coordination must be set up, and posterior torque must be corrected. From a dynamic standpoint, the condyles should be in centric relation when the teeth occlude, and functional movements should be established. By this stage, habits should be corrected. And finally, cephalometric objectives should be reviewed, as well as esthetic objectives.