Effect of dimensional variations on the manufacturing process and the 3D shrinkage ratio of stereolithographic dental alumina ceramics
Source abstract
Abstract
The purpose of the present study was to evaluate the influence of height and length variations of alumina ceramics manufactured by stereolithography on deformations caused by the manufacturing process and on the 3D shrinkage ratio to control the final dimensions and improve the adaptation of stereolithographic ceramic dental prostheses. Two different U-shaped models were designed with variable heights or lengths. The specimens were manufactured by stereolithography and were scanned using a microtomographic device before and after the heat treatment. Dimensional variations were measured using inspection software. The number and surface of layers of alumina ceramic influenced the reliability of the stereolithography manufacturing but did not influence the 3D shrinkage ratio. The larger the layer surface, the larger the deformation of the ceramic. Dental ceramics manufactured by stereolithography with smallest layer surface are the most reliable. This helps in the selection of the build orientation.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Dental materials and restorations · Additive Manufacturing and 3D Printing Technologies · Dental Implant Techniques and Outcomes
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Prosthodontics, Faculty of Dental Surgery, University of Lille
INSERM U1008 - Controlled Drug Delivery Systems and Biomaterials, School of Medicine, University of Lille
Department of Restorative Dentistry, Faculty of Dental Surgery, University of Lille
ULR 4490, Marrow Adiposity and Bone Laboratory, University of Lille
Laboratory of Ceramic Materials and Associated Processes, Université Polytechnique des Hauts de France
References (37)
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