Fabrication of a functionally graded dental composite resin post and core by laser lithography and finite element analysis of its stress relaxation effect on tooth root

Dental Materials Journal
S MatsuoN Ohata

Abstract

Laser lithography was applied for Computer Aided Design and Computer Aided Manufacturing (CAD/CAM) fabrication of dental prostheses made of composite resin. First, the conditions to obtain the optimum resolution for photo-curing were determined, and then a composite resin full crown was fabricated by laser lithography. Second, a functionally graded composite resin post and core which had gradient elasticity in the post, was manufactured by the gradual change in the filler contents of the composite resin. Finally, stress analysis of the functionally graded post and core was performed by a two-dimensional finite element method. This demonstrated the effects of reducing the stress concentration around the apex of the post.

Citations

Mar 5, 2003·Journal of Clinical Laser Medicine & Surgery
Apr 15, 2009·Journal of the Royal Society, Interface·Fumio WatariKazuyuki Tohji
Nov 30, 2011·Dental Materials Journal·Noor H Abu KasimGhahnavyeh R Rahbari
Jun 12, 2013·Journal of Biomedical Materials Research. Part a·Mehdi MehraliNoor Azuan Abu Osman
Mar 30, 2013·Dental Materials Journal·Reina NemotoHiroyuki Miura
Mar 24, 2020·Journal of Biomaterials Science. Polymer Edition·Syed Saad Bin QasimUmer Daood
Feb 9, 2021·Frontiers in Bioengineering and Biotechnology·Hongyuan ShiLiqiang Wang
Jun 19, 2021·Journal of Dental Sciences·Kunihiko MizusawaHiroyuki Miura
Jan 23, 2015·ACS Applied Materials & Interfaces·Daniele NuvoliAlberto Mariani

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