Dabbing the ticks body with a strong ethanol solution often helps them to losen off a little and makes it easier to get them off, (with their heads) after a few minutes.
I've never heard of tick infested dragons before, even during a small outbreak in my pit none of my beardies had any. i've also caught heaps of jacky dragons, tickless, yet within meters of a clean Jacky was a shingleback full of them, i ended up getting sunburnt for about 40mins trying to remove them all. Possibly because stumpies 'roam' more and have more chance of running into ticks?