Cellular fluid shear stress on implant surfaces
Abstract
Background
Mechanostimuli of different cells can affect a wide array of cellular and inter-cellular biological processes responsible for dental implant healing. The purpose of this in vitro study was to establish a new test model to create a reproducible flow-induced fluid shear stress (FSS) of osteoblast cells on implant surfaces.
Methods
As FSS effects on osteoblasts are detectable at 10 dyn/cm2, a custom-made flow chamber was created. Computer-aided verification of circulation processes was performed. In order to verify FSS effects, cells were analysed via light and fluorescence microscopy.
Results
Utilising computer-aided simulations, the underside of the upper plate was considered to have optimal conditions for cell culturing. At this site, a flow-induced orientation of osteoblast cell clusters and an altered cell morphology with cellular elongation and alteration of actin fibres in the fluid flow direction was detected.
Conclusions
FSS simulation using this novel flow chamber might mimic the peri-implant situation in the phase of loaded implant healing. With this FSS flow chamber, osteoblast cells’ sensitivity to FSS was verified in the form of morphological changes and cell re-clustering towards the direction of the flow. Different shear forces can be created simultaneously in a single experiment.
Serial posts:
- Cellular fluid shear stress on implant surfaces
- Methods : Cellular fluid shear stress on implant surfaces (1)
- Methods : Cellular fluid shear stress on implant surfaces (2)
- Methods : Cellular fluid shear stress on implant surfaces (3)
- Results : Cellular fluid shear stress on implant surfaces (1)
- Results : Cellular fluid shear stress on implant surfaces (2)
- Discussion : Cellular fluid shear stress on implant surfaces (1)
- Discussion : Cellular fluid shear stress on implant surfaces (2)
- Discussion : Cellular fluid shear stress on implant surfaces (3)
- Discussion : Cellular fluid shear stress on implant surfaces (4)
- References : Cellular fluid shear stress on implant surfaces
- Figure 1. Three-dimensional illustration and photography
- Figure 2. Side view of a computerized simulation
- Figure 3. Diagram for visualisation of the calculation of shear stress rates
- Figure 4. Randomly orientated osteoblasts without influence of rotation
- Figure 5. Osteoblasts with an orientation tendency after 24 h