regulation of modification of synaptic structure +
regulation of neuromuscular junction development +
regulation of postsynapse organization +
regulation of presynapse organization +
regulation of presynaptic membrane organization +
regulation of synapse assembly +
regulation of synapse maturation +
regulation of synapse pruning +
regulation of synapse structural plasticity +
Any process that modulates the frequency, rate or extent of synapse structural plasticity. Synapse structural plasticity is a type of cytoskeletal remodeling; this remodeling is induced by stimuli that can lead to long term potentiation and it can be activity-dependent or -independent. Examples of cytoskeletal changes include the formation of new spines and increase in spine size; this can be accompanied by the insertion of greater numbers of glutamate (or other neurotransmitter) receptors into the post-synaptic membrane.