I had my right molar pulled 7 months ago. Now the bone graft is showing through my gums. Will it heal? Is it infected? (Photo)

I had my back right molar (tooth 17) pulled 7 months ago due to multiple failed root canals and an underlying infection. Bone grafting was done, but no implant. It took a few weeks for the pain to subside and for it to heal. Everything seemed somewhat normal. Cut to two weeks ago where I noticed a hard little white speck of bone poking through my gums near where the extraction took place. It was not painful, and fell out. Now it's back, but much bigger. Will it heal? Is it infected?