Diastema is a dental term that refers to a gap or space between two teeth, most commonly seen between the upper front teeth. This condition can occur naturally due to the size of the teeth and jaw, or it may result from habits like thumb sucking or prolonged use of a pacifier in children. While diastema is often harmless and does not require treatment, some individuals may choose to close the gap for cosmetic reasons. Various options, such as braces or dental bonding, can be used to address diastema if desired.