This article would be fine except it doesn't cover the ground sufficiently and you could end up restoring a database over new data when there was nothing wrong in the first place.

Before restoring a database that is in suspect mode, check your error log. You may find that a drive has gone offline. You may be able to bring that drive back online with the data file in tact. I have done this with SAN connections that are failing.

It pays to be very thorough before jumping to the conclusion that you need to restore a production database over new data.