[A clinical report of maxillary midline diastema closure with direct composite resin restorations by using modified...

To describe an available technique for maxillary midline diastema (MMD) closure with direct composite resin restorations using modified matrix technique, determine its clinical operational procedures and feasibility, and assess its short-term clinical outcome. Eight patients who visited Department of Prosthodontics, School & Hospital of Stomatology, Wuhan University from January to April 2024 due to MMD, choosing direct composite resin restoration, were included in this study and treated using modified matrix technique. Esthetic, functional, and biological properties of sixteen restorations were evaluated according to the World Dental Federation (FDI) criteria after 12-month follow-up. The symmetry of central incisors was achieved perfectly with a correct maxillary midline in all cases. All restorations achieved a good emergence profile, a proximal contour, and a tight proximal contact. All restorations were evaluated as clinically excellent or good after a 12-month follow-up according to FDI criteria. Slight disharmony in the color match and translucency of restorations was observed in a case with a 3-mm diastema. Direct composite resin restoration with modified matrix technique presented satisfying short-term clinical outcome for MMD closure, and it is efficient in the rapid establishment of a good emergence profile and proximal contour with a correct maxillary midline. Nonetheless, large-sample, long-term follow-up prospective randomized controlled trials are required to furnish evidence for the superiority of this technique.