OK, forget about what I said. Steve is correct. Here is what a longtime friend of mine says about adapters. He has been using them for years. However, you need to understand to get the exact correct size adapter. So, you still need to know the backspacing of your current wheel, and you need to know the back spacing of the 05 wheel. Let's say the 72 is 4.75 inches, and the 95 is 5.75. In this case you will need to get exactly a 1" adapter. Do the math and order the right adapter so you keep the wheel exactly in the center of travel to keep from wearing out your wheel bearings prematurely.
"I like to use the term "adapter" vs. "spacer" to avoid confusion. A simple spacer, as myth alluded to above, is just that -- it slips over your existing wheel studs and those same studs are still used to fasten the wheel. These are kind of OK for very thin spacing, like 1/4" or less. You will probably need to install longer studs.
I call what you're using adapters. They fasten to your original wheel studs with a set of lug nuts and have a new set of studs for the wheel to fasten to. They are common in 1" thickness and on up. There is nothing at all wrong with this, and it will absolutely be safe for a daily driver. When the right thickness is used it doesn't affect the bearing loading at all.
As a generalization, an arrow pointing up from the center of your contact patch is the load path. That arrow is going to be in exactly the same place on a 17x8 with 4.75 BS as it will on a 17x8 with 5.75 BS and a 1" adapter.
Now, if you were to keep the very same wheel and space it out for some reason, that would change the loading. How much of a problem it may be would depend on how far out you go. But that's not what you're doing here. You're using an adapter to compensate for the different backspacing to keep your tire position, and thus the load path, consistent.
They don't come loose any more than your wheels do. Just like you should retorque your wheels from time to time you should also retorque your adapters from time to time. "