Clinical Update quiz
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December 2025 Clinical Update
Wear behaviour of 3D printed, minimally invasive restorations: Clinical data after 24 months
Doumit M, Beuer F, Böse MWH, Unovskiy A, Hey J, Prause E. J Prosthet Dent 2025; 134: 662-669.
Reviewed and edited by Professor Harcourt and Dr Condon. Compiled by Dr Sarah Chin.
This article was originally published in The Journal of Prosthetic Dentistry and has been edited for brevity and clarity.
Introduction
Computer-aided design and computer-aided manufacturing (CAD-CAM) has been used to manufacture restorations for some time. Three-dimensional (3D) printing, otherwise known as additive manufacturing, has been gaining popularity in conjunction with stereolithography (SLA), digital light processing (DLP) and fused deposition modelling (FDM),being most commonly used to manufacture aesthetic restorations. Interim and definitive single tooth restorations fabricated using 3D printing have reduced material consumption and are time effective.
Inorganic particles (including ceramic particles- up to 60% by volume) have been added to improve the mechanical properties of resin based 3D printable materials. Filler volume, shape, size, hardness values and printing parameters have been reported to influence the mechanical properties of 3D printed restorations. The bond strength between the fillers and the polymer matrix has been reported to affect the mechanical behaviour of restorations and influence wear characteristics. It is not clear if 3D printed single-tooth restorations can withstand masticatory forces under clinical conditions.
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