[A finite element model of a cusp-replacing adhesive restoration].
This article describes the development of a three-dimensional finite element model of a premolar, based on a micro-scale computed tomographic data-acquisition technique. Using the model shrinkage stresses were analysed during and after the polymerisation process of resin composite. The stress patterns generated were three-dimensional. The results of this study indicate that failure of the interface is more probable than failure of the composite material. The described procedure is a relatively easy method to produce a highly detailed 3-D finite element model of a premolar with an adhesive cups-replacing restoration.
Biomechanica Laboratorium, afdeling Orthopaedie, van het Universitair Medisch Centrum Sint Radboud in Nijmegen. w.fennis@dent.umcn.nl
W M M
WM
Fennis
R H
RH
Kuijs
M
M
Barink
W A
WA
Fokkinga
C M
CM
Kreulen
N H J
NH
Creugers
N
N
Verdonschot
D001641:Bicuspid / Q000000981:diagnostic imaging*; D003188:Composite Resins / Q000737:chemistry / Q000592:standards; D003198:Computer Simulation; D003793:Dental Restoration, Permanent / Q000592:standards; D003799:Dental Stress Analysis / Q000379:methods*; D020342:Finite Element Analysis; D006801:Humans; D021621:Imaging, Three-Dimensional; D003765:Models, Dental; D014057:Tomography, X-Ray Computed
D003188:Composite Resins