Physiological transitory maxillary midline diastema is observed in children during the eruption of the maxillary an-terior canines, but is unrelated to the eruption of teeth. In most cases, it self-corrects after the eruption of the maxillary canines (in 96 % it closes spontaneously). Mid-line diastema of teeth has been observed owing to various aetiological factors, such as supernumerary teeth, congenital absence of permanent teeth, deleterious oral habits, high frenal attachment and others, such as peg-shaped laterals and microdontia...
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