  A recent lattice study of the Landau-gauge overlap quark propagator has shown
a connection between centre vortices and dynamical chiral symmetry breaking in
$\mathrm{SU}(3)$ gauge theory. We further investigate this relationship through
an exploration of the connection to the instanton degrees of freedom. After
identifying centre vortices on the lattice in maximal centre gauge, we smooth
configurations using multiple algorithms. We are able to create an instanton
liquid-like background on configurations consisting solely of centre vortices,
analogous to that found on Monte-carlo generated configurations after similar
smoothing. Through calculations of the static quark potential and Landau-gauge
overlap propagator, we show that this background is able to reproduce all
salient long-range features of the original configurations. Thus we conclude
that the information necessary to recreate the long-range structure of
$\mathrm{SU}(3)$ gauge theory is contained within the centre vortex degrees of
freedom.
