I have a dental implant that already has a crown(top, left, center) with a bone graft and am wondering whether I need to go back to my oral surgeon a few times a year to make sure the bone is good. Also, about once a week I feel a weird sensation like its moving, but that doesnt make any sense. Also, when I feel this I am not sure if it is the implant or the crown. I had my dentist's office send over my x rays they took last week. Is that enough for them to be able to tell if there is something wrong or if everything is okay? Thanks, have a good day.