Direct Restorative Closure of Maxillary Midline Diastema Using a 3D-Printed Matrix: A Case Report.

Area of Science:

• Dentistry
• Digital Dentistry
• Restorative Dentistry

Background:

• Anterior midline diastema is a common esthetic concern impacting smile appearance.
• Direct composite resin restoration is a conservative option for diastemas, allowing for morphology and shade adjustments.
• Digital dentistry enhances workflow efficiency and treatment predictability.

Purpose of the Study:

• To describe the management of anterior midline diastema and spacing using a 3D-printed matrix for esthetic rehabilitation.
• To evaluate the predictability and efficiency of a 3D-printed matrix in direct composite restorations for diastema closure.

Main Methods:

• Optical impression using an intraoral scanner and recording maxillomandibular relationship.
• Digital design of a maxillary incisal matrix using CAD software and fabrication via 3D printing.
• Injection of flowable composite resin into the 3D-printed matrix, followed by light-curing, finishing, and polishing.

Main Results:

• Successful reshaping of teeth according to the digital design, achieving planned esthetic and functional improvements.
• Precise transfer of the digital design to the clinical setting, enabling enhanced control over morphology and symmetry.
• The 3D-printed matrix facilitated a rapid, convenient, and predictable direct composite restoration.

Conclusions:

• Direct composite restoration utilizing a 3D-printed matrix is a reliable alternative to freehand techniques for anterior midline diastema.
• This digital workflow provides improved control, precision, and predictability in esthetic rehabilitation of maxillary anterior spacing.
• The 3D-printed matrix technique is particularly beneficial for cases involving midline diastema and spacing, enhancing overall treatment outcomes.