Per 
Item#7990
Object Class#KETER
Special Containment Procedures:SCP-7990 needs to be kept in a 32 to 32 yards. 7990 Must be kept in titanium floating cage at all times, SCP-7990 is allowed to only leave when brought to a cross test.
DESCRIPTION:SCP-7990 is a floating jaw and looks to be only a jaw, with the rest of its skeleton muscle and skin invisible. When it walks the subject inside its chamber can hear the creature's bones crackling. once SCP-7990 gets in contact with any humans, it talks to the person for 2 hours straight. After the 2 hour mark, it rips off the jaw of the human then eats the remains. once it eats a human, its skeleton gets more visible. Once it has eaten enough bodies, its skeleton will be fully visible. If so, it needs to be shot down immediately.
LOADING TEST LOG-D57
7990: "Ah, I see. Another test?"
DR.[REDACTED]: "Yes yes, we've brought a D-CLASS to talk to you, 7990."
7990: "Well hello there orange jumpup. What brings you into my cozy corner of the foundation?"
D8723: "Uh, I am here to ask you a few q-questions."
7990: "Ah, i see."
D8723: "Question 1, Why is the rest of your body invisible instead of your jaw."
7990: "I used to work in a coal mine back in 1945, I was searching for coal but then, i found some sort of lab, with some chemicals that spilled over to my body. Then I realized every part of my body instead of my jaw, turned invisible."
D8723: "Oooook.."
D8723: "Question 2, What-"
[AT THIS POINT OF RECORDING, A CONTAINMENT BREACH OCCURS, LEADING INTO D8723'S DEATH.
AND LEADING INTO 7990'S BREACH.
02:53 AM
7990 IS RE-CONTAINED, BUT DEALT LOADS OF CASUALTIES TO THE FOUNDATION.]
END LOG.
