I was looking at my old pictures, I noticed that my temples have been receding for more than 5 years. The signs of male pattern baldness were there for a long time and it never really bothered me until I started thinning in the front and top. The point I am trying to make is that temple recession isn't necessarily aggressive.
There are different opinions on the subject, but the general consensus is that finastride should be able to stop/slow down hairline recession. I've been on finasteride for a short time and I haven't seen any thickening yet, but I've been on minoxidil for 3.5 months now. I don't have any major regrowth, but I believe it's helping with my temples and I expect some of the hairs to thicken in the next few months.