What kind of problems can an ill fitting bridge cause?

It is difficult to fully answer your question without xrays and photos. If the teeth are strong enough and supportive enough, it seems that you could do a bridge. Since you have 3 missing teeth,#9,10,11 between the 2 anchor teeth on the left, I would go further back on the bridge to include one...

It is very common to place dental implants in the 7 and 10 postitions, then place a four unit bridge across the front.  When placed properly, a four until bridge can be a very aesthetic option for missing front teeth.  These are very durable bridges that should be fairly easy to keep...

I would have your orthodontist/ general dentist cement the Maryland bridge to only one of the teeth, preferably the bigger tooth , which would be the other front tooth.  Dentist have a more permanent solution beyond Dentemp and Fixodent that should last longer than your current situation....