Spring mechanics for the closure of maxillary midline diastema

Maxillary midline diastema (MMD) is a relatively common dental malocclusion characterized by a space between the maxillary central incisors, with functional and esthetic consequences. A diastema between the maxillary central incisors is a relatively common finding in the primary, mixed as well as permanent dentitions. In the primary dentition, interdental spaces help to settle down the superceding permanent teeth. Majority of these close spontaneously by the time the maxillary canines appear, but a few may persist in the permanent dentition. Various treatment modalities are implemented to bring about closure of the diastema. This paper presents a series of 10 cases treated for the closure of diastema with a M shaped spring fabricated chairside.