Mickey Bernstein, DDS (retired)

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 precisely
or 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.

Your picture seems a bit distorted, but based on what I can see, the central incisors (middle teeth) are already too wide for the other teeth.  So, no, boding would not yield an esthetic result, Minor orthodontics, followed by bonding or veneers on the lateral incisors (second teeth) would likely give your the smile you desire. Best of luck. 

Agree with the other Drs that you have a beautiful smile. It is a matter of preference.. I like the length of your central incisors and the amount of teeth that shows in your smile. Personally, if the goal is to enhance your smile to even more beauty, I would like to lengthen your lateral incsiors (the shorter teeth) and round your cuspdis slightly. Easy stuff. Good luck. 

Prepless veneers are a good option for you after orthodontics. Bonding would also work well. If you are a young teen, be aware you made need replacement about age 20 after your face is fully grown. Of course the other option is wait until age 20 to get treatment.

Interesting questions. This two dimensional x-ray shows no sign of fracture which is not conclusive. It does show significant bone loss.  Root canal + surgery+ Crown+bone loss+new pain = to many risk factors to invest more time, money, and energy in a losing proposition. If they were my teeth, I would have extractions, bone grafting, implant (s) and crowns. It is not likely as difficult as you have imagined and very predictable with today's technology.. Best of luck to you.