Individualized, 3D Printed Matrices for the Reconstruction of Severely Destructed Teeth with Subgingival Margin—Case Series and Proof of Concept

Szabó, Balázs and Néma, Viktória and Jakab, András and Braunitzer, Gábor and Palkovics, Dániel and Fráter, Márk Tibor (2024) Individualized, 3D Printed Matrices for the Reconstruction of Severely Destructed Teeth with Subgingival Margin—Case Series and Proof of Concept. APPLIED SCIENCES, 14 (23). No. 10792. ISSN 2076-3417

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Abstract

Restoring deep, extensive carious lesions and subgingival situations can be challenging due to difficulties in placing matrices and achieving isolation. This article describes a technique utilizing individually designed digital matrices for challenging cases, offering an alternative solution aiding the reconstruction of the missing dental structures. Three cases are presented with difficult subgingival cavities or severe destruction of dental hard tissues, where a custom-made matrix was used to bridge the challenges of matrix placement and isolation. Digital impressions of dental arches were taken, and custom-made metal instruments were manufactured through computer-aided design and subsequent sintering. These instruments aided the elevation of deep margins and the reconstruction of the teeth. The presented technique yielded favorable results in terms of accuracy and feasibility for these challenging cases. However, it should be noted that the procedure requires additional time and incurs costs for the necessary elements.

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