What glue for temporary repair of Essie retainer?

Many essix retainers with a false tooth don't even glue the tooth to the retainer, so ANY glue is an upgrade.  However, sometimes they aren't glued in for a REASON, so it is important that your dentist is aware and gives input.Superglue is often more than enough.

I suggest calling your dentist. They may have an opinion of what they prefer you to use in this situation.