Hi,
Bone grafts can be an easy thing. I just had four implants on my top front teeth and each one had a bone graft. They used what I call "bone in a bottle" or cadaver bone. As long as you have a good oral surgeon doing your implant, this is no problem. It worked great for me.
I am now in the healing cap phase of my implants and it has been worth every second!
Try not to worry too much about the bone graft. Just ask your doctor where they plan on getting the bone. Some can harvest it from an area that had a tooth removed, too, but bone in a bottle is a very good and safe alternative.
Hope this helps.
Best to you,
Gellia
Consultation with an experienced implantologist is advised.