Can pedophiles be treated with dolls and drawings like lolicon?

So I have seen these discussions a lot about how dolls could be used to treat pedophiles and that lolicon is better than a real child.

I would like to ask if there's any solid information and study that shows that dolls and lolicon help pedophiles or if they are bad for them and actually make them more likely to offend.

Any links would be helpful. :)