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2. Stability and relapse: early treatment of arch length deficiency;Little;American Journal of Orthodontics and Dentofacial Orthopedics,2002
3. Retention procedures for stabilising tooth position after treatment with orthodontic braces;Littlewood;Cochrane Database of Systematic Reviews,2006
4. Mandibular second premolar extraction–postretention evaluation of stability and relapse;McReynolds;The Angle Orthodontist,1991
5. Short-term effects of fiberotomy on relapse of anterior crowding;Taner;American Journal of Orthodontics and Dentofacial Orthopedics,2000