You should definitely check in with the dentist/surgeon that placed the implant for you. It is not unusual for there to be complications with implants used under an All on Four denture case. It is also possible that the bite needs further adjustment from the dentist that did the all on 4 procedure.
Veneers are wonderful to fix minor misalignment and certainly if you'd like to enhance the appearance of your canines veneers are a definite way to do so. By the teeth moving back to their original positions is an indication of their 'natural' positions therefor placing veneers on your canines should give you the long term result you are looking for.-Robert A. Rees DDS, APC La Jolla, Ca.
To answer your question simply, yes getting veneers on your front 2 teeth would allow you to make them more symmetrical and even slightly close your 'gap' down a little if you want. Be sure your dentist is highly trained as making a beautiful esthetic result takes higher skills and know how.-Robert A. Rees DDS, APC La Jolla, CA.
