Got crown and veneer on front four and laser gum surgery

If the gum redness and irritation are due to hygiene issues and/or buildup under the gum line, a deep cleaning may be all you need. It sounds like the crowns and veneers are the issue themselves and the dentist may be able to reshape them and polish. If that doesn't fix it, they need to be remade and make sure you like them before cementing. I don't feel adding composite is a good idea. 

Thanks for writing and sorry you are having this issue. It is difficult to give a definitive answer without some photos, but I will do my best.Gum redness can be from poor fit or placement of the crown/veneer margin or poor hygiene. If poor placement, the only solution would be new restorations and some gum surgery.As for contour, options are recontouring the existing restorations or replacement.As for color (shade), composite bonding on the adjacent teeth is an option if done preciselyor replacement.Based on the available information, sounds like the best option for you and the doctor is replacement of the existing porcelain and treatment (possibly surgically) of the gum tissue. Sometimes things just don't go right in a biological system (your mouth) and both parties need to communicate ahead of time that hiccups do occur and how that will be handled.Good luck.