Chance at a critical craft toward masterwork

I'm having the same problem and i posted the same question.

At first (early game stages and after gaining the first 3-4 dragon's tooth) i solved the problem by crafting 2 MW in a row. Wasted the materials on the first item using tier 1 only and the second worked 100% of the times,but in the last days it doesn't work anymore ; i just keep wasting teeth ☹️

I think there's a system in place to prevent save scumming, so reloads shouldn't affect crit chance. 

I guess if you still wanted to work the system you could burn through your teeth until you found whichever tooth granted the crit. Then burn through the dud teeth using t1 trash mats. Once you're back on the crit tooth pull out your t3/t4 mats and craft your monster gear. 

Note that I can't guarantee this would work, I don't have any insight on the randomisation system used in crafting. I always just use the proc/ability masterworks anyway, they're more fun.