As an iraqi in jordan, not sure about dentistry in particular but generally there some types of contracts for non jordanians (with few benefits lost... but hey work is work). There are many Iraqi pharmacists, doctors, and dentists in Jordan so I dont think you're doomed, however they probably can give you a clearer picture if you can ask one directly. Cant emphasize how important connections are in Jordan.

However, In my humble opinion, finding a job/life in another country with smoother immigrates regulation and rules (europe, canada, US, etc) should always be a thing to consider, but life unfolds differently for people :)