The spaces more than 0.5 mm between proximal surfaces of adjacent two teeth may be called diastema.1 The presence of diastemas especially in the anterior region may 
cause esthetic problems for patients.2 The reported incidence range of median diastema in adult dentition ranges from 5% to 20%.3,4 These spaces may have various etiologic factors such as; peg shaped teeth, oral habits, transpositions of teeth, pathologies, deep overbite, genetic predispositions, abnormal frenulum attachments and tooth migrations.5 Diastemas my also occur during or after orthodontic treatment. Talking about orthodontics, the etiology of these spaces may be divided into two groups: