first always talk with your treating doctor, as far as i can see the blue you see may be cover screws these are used when not doing single stage surgery, it can be the healing caps and the tissues due to swelling are covered up ,they generally sit flush with the tissue and would not appear to be underneath. the redness should not be present are you wearing a removable tempoarry that may be causing the redness . if you are using the same mouth for a month and still have redness again i would discuss with my doctor as you may need to switch to something else
Well, first ask your treating doctor for a consult appointment and inform them that you would be willing to stay in treatment so you can have all your teeth aligned. It's impossible to see the extent of work required without pictures and other diagnostic information, but I have always found that if you can engage someone in a positive manner, you should be able to come to an amiable solution for everyone.
I'm not sure why you had to wait for three months for your final bridge, but be that as it may, you should never accept something you don't like. Most doctors will always have the patient decide whether they like it or not. Prior to delivery, anything can be adjusted. You can adjust some porcelain, but if you look at the picture they all look symmetrical in that they appear to follow the same thickness, and what you do to one, you have to do to all. The tightness may be from the contact on an adjacent tooth, which could be adjusted. However, if the tightness is due to the bridge not fitting easily, you may have a problem down the road with even a fracture of a tooth. The bridge, from my perspective, does not look unaesthetic, but I would need to evaluate how it looks in comparison with the rest of your mouth and face.
wearing a retainer over a fixed bridge that is properly made should not dislodge a bridge .from what i gather your bridge is attached two your laterals and your two centrals are pontics, you need to make sure that the retainer fits passively on your bridge so as not to garb the bridge as tight as your teeth since your laterals are the primary retainers that means they are bearing all the forces to hold that bridge in place and they really are not the strongest teeth in the mouth they may suffer too much pressure and may over time become damaged, since i cant see any x-rays i cant tell the length of the roots nor can i determine if they are any other bite forces that could inflluence long term survival you may want to plan to have implants in the front teeth and crowns on the laterals .just a thought
Some people have different pain thresholds. The pain you may experience is very subjective; it really depends on how much prepping was required. You need to avoid extreme temperatures and should take ibuprofen and extra strength Tylenol for the sensitivity. Let your treating doctor know what you're feeling as there are other medications that can help. You also need to make sure it settles down prior to having the permanent ones delivered, but the permanent ones should not cause that type of discomfort. Think about it like this: our teeth have enamel covering them. It is a protective covering that no matter how little you remove of it, it can cause some level of sensitivity. As for the lower teeth, they may be hurting due to having your mouth open for such a long period of time. My question on that would be if they used a bite opening appliance? But definitely inform your doctor. The most important thing you can do is keep your doctor updated on how you're feeling because a cosmetic procedure like veneers can cause severe sensitivity.