1. Evaluation of short-term stability without retention: a pilot study [thesis];Lyotard,2006
2. Cheek pressure and head posture;Ingervall;Angle Orthod,1988
3. Assessment of orthodontic stability using removable Hawley retainers with a nighttime only regimen [thesis];Butler,2003
4. Comparison of Essix and Hawley retainers;Lindauer;J Clin Orthod,1998
5. Comparison of occlusal contacts with use of Hawley and clear overlay retainers;Sauget;Angle Orthod,1997