I'm getting 3 adjacent teeth crowned. My dentist decided not to put cement on the temporary crowns after prep. Any suggestion?

Although
I always cement my temporaries, if the prepared teeth are very parallel and the
temporary crowns fit well, I think you can get away without using cement. It
can be very difficult to remove a well fitting cemented temporary crown, in
such a case, cutting it off could be the only option. As an example, implant
temporaries are based on machine made parts, which means they have a tight fit and
are very parallel. I often need to remove cemented implant temporaries with
forceps because of the excellent fit.

Depending on how well the temporaries fit and the condition of your hygiene, I personally have on occasion inserted temporaries uncemented.  Dentists that work on very tall teethcan sometimes run into difficulties when removing cemented temporaries.  Then the only option is to cut them off.  I alsotry to avoid cementing temporary crowns that are placed on implants.Cement is great at creating a seal from bacteria and offers betterretention however it can be a huge irritant to the gum if it isnot cleaned out properly.