Back in the old days when we use to epoxy all our hinges in, for extra good measure we would put a pin or two (a tooth picks works well with a drop of CA) through the hinge through the wing and aileron or stab and elevator etc. If the wood is of good quality where you are hinging the hinges will never come out with pins helping to hold them. Trim the pins flush and add a piece of monokote trim to hide them. Not the best fix, but it works well is simple and will give you a piece of mind.