Closure of a midline diastema involves the correction of the space or gap between the two upper front teeth, a condition that can affect both appearance and oral function. While some diastemas are purely cosmetic, others may result from factors like oversized labial frenum, habits (like thumb sucking), or misaligned teeth. Treatment options for closing the gap include orthodontic braces or aligners, composite bonding, dental veneers, or surgical procedures like frenectomy when necessary. The chosen method depends on the underlying cause and the patient's aesthetic goals. With modern dental techniques, closing a midline diastema can significantly enhance smile aesthetics and boost self-confidence.