1. Management of maxillary midline diastema with emphasis on etiology
2. The upper mid-line space and its relation to the labial fraenum in children and in adults. A statistical evaluation
3. Proffit, W.R., Flields, H.W. and Sarver, D.M. (2007) Treatment of Nonskeletal Problems in Preadolescent Children. In: Proffit, W.R., Ed., Contemporary Orthodontics, Elsevier, Amsterdam, 433-494.
4. Shashua, D. and Artun, J. (1999) Relapse after Orthodontic Correction of Maxillary Median Diastema: A Follow-Up Evaluation of Consecutive Cases. The Angle Orthodontist, 69, 257-263.
5. The influence of incisal malocclusion on the social attractiveness of young adults in Finland