Grade 1 Osteoradionecrosis

Dear all, 

I waa treated for right tonsil SSC. May las radiotherapy was on July 2016. Today,I had a denist appointment. They found out that small piece of my upper jaw bone is eposed( here is no gum soft tissue to cover my bone. They mnrion about oseoradionecrosis. I am woiying abou it. They will check me gain in 3 mo later. I was wondering if an one experiences anything similar. How did it pogressed? Whatkind of treament options were suggetesed?

Thanks in advance for you help.