I am not sure about this as a preventive measure, but I have seen in some service notes that they recommend it after a few hours if the head gasket has been replaced.
Remember that if you simply put the torque wrench on and turn it till it clicks, you will likely not accomplish anything.
The trick I have seen written but not tried myself is as follows:
Back all 4 headbolts out a little to loosen them
Take one headbolt completely out and dip the threads in a little oil
Re-insert bolt and snug it down (don't tighten it yet)
Repeat for the remaining 3 bolts
Torque down all 4 bolts per the repair manual instructions
As I said I have not tried this but it does seem to make sense. Basically you are taking the bolts out all the way and then re-inserting them again however without disturbing any of the gaskets.