I have had

I have had two implants done to my upper right teeth, 14,15, and have just had the zirconium crowns put on temporarily today, and next week if all’s well, they will be permanently screwed and glued in, then a white filling will cover the screws for aesthetics. My dentist has said that these teeth will always appear longs as my jawbone was arched and the surgeon who performed the initial implants should have done a bone transplant at the same time to improve this. All he did was splinter the bone during the op using a dental hammer. The dental crowns are very long and my gum is raised and my question is will my gum grow down a bit to make these teeth appear to be a bit more natural? The tooth colour is good, bite good, although I’ve tried flossing and the fit is a bit tight, but perhaps an adjustment can be made for this as they have not been permanently fixed yet. I also have a good zirconium crown on upper molar 16 next to the implant, and there’s a gap now which shows a bit at the root next to the implant if I smile widely. The dentist said she could perhaps recrown this tooth and make the new crown cover this small area, but I was wondering whether she couldn’t just fill it in using some white plastic filling before she permanently fixes in the new implant crown? Would this be possible? I do not want to pay for a new crown on that tooth as it is only 3 years old and good apart from this piece which became exposed after the imlant operation.
Thank you for your advice