Can I have Dental Bonding work done abroad while wearing a retainer?

I’ve recently finished my brace treatment and am wearing a retainer. I have been considering getting some composite/dental bonding work done. I’m due to go abroad soon and was wondering whether I could do this abroad and have a new retainer remoulded and fitted whilst there? Does anyone have any experience with something similar or would it be advised against doing anything like this abroad? Any help appreciated! (Of course, total costs abroad will be much less than in the U.K.)