Matrix-Guided Composite Resin for Direct Diastema Closure: A Clinical Technique Report

The demand for esthetic dental procedures, particularly among younger patients, has increased significantly in recent years. Diastema, the gap between anterior teeth, is a prevalent esthetic issue. This case report introduces a new and less invasive procedure for diastema closure termed the putty matrix diastema closure (PMDC) method. A 49-year-old female patient presented with a diastema between the upper right central and lateral incisors. The approach utilized a custom silicone putty index and an ultrathin metal matrix band to facilitate progressive composite repair. The treatment effectively achieved superior esthetic and functional outcomes while conserving natural tooth structure and avoiding more invasive interventions like orthodontics or porcelain veneers. This case report has been prepared in accordance with the CARE guidelines.