Jerry is a 59 year old male who completed SRP about 4 months…

Jerry is a 59 year old male who completed SRP about 4 months ago and presents for his first periodontal maintenance visit. Jerry reports on and off again swelling on his lower left side. Upon clinical examination the probing depths exceeds the greatest measurement available on the UNC probe (see photo). You take one PA x-rays to aid in your dental hygiene diagnosis (see radiograph). Based on the information you have, which condition does Jerry have?