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Solid Freeform Fabrication of Permanent Dental Restorations via Slurry Micro‐Extrusion
Author(s) -
Wang Jiwen,
Shaw Leon L.,
Cameron Thomas B.
Publication year - 2006
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2005.00672.x
Subject(s) - extrusion , materials science , slurry , shrinkage , fabrication , impression , sintering , dental restoration , 3d printing , viscosity , composite material , computer science , medicine , alternative medicine , pathology , world wide web
A solid freeform fabrication procedure for human dental restorations via a slurry micro‐extrusion process is described. A dental porcelain slurry is developed with pseudoplastic property and moderate viscosity, which permits the slurry to be extruded at low extrusion pressure and have good shape‐keeping ability. A green tooth can be produced by this method directly from a CAD digital model in 30 min. The sintering shrinkage of the green tooth is uniform. The microstructure of the sintered tooth is identical to that made via the traditional dental restoration processes. This new dental restoration process presents potential to provide dental patients with better, faster, and less expensive service.