What question did this study set out to answer?

This report aims to present a new technique for closing dental diastema using a minimally invasive approach.

April 19, 2026Open Access

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

ATAhmad ToumajIslamic Azad University Medical Branch of Tehran VCVahid CheraminIslamic Azad University Medical Branch of Tehran MRMalihe RezaeiHamedan University of Medical Sciences

Key Points

This report aims to present a new technique for closing dental diastema using a minimally invasive approach.
Introduced the putty matrix diastema closure (PMDC) method using custom silicone putty and an ultrathin metal matrix band.
The procedure involved progressive composite repair for diastema closure.
The treatment was executed on a 49-year-old female patient with a gap between anterior teeth.
The treatment achieved superior esthetic outcomes while preserving natural tooth structure.
Functional improvements were noted post-treatment.
The method avoided more invasive options like orthodontic treatment or porcelain veneers.

Abstract

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.

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