A 30 year old man presents to your emergency department complaining of severe pain in his mouth and an inability to swallow. He leans forward as he talks. He complains of a stiff neck and drooling. You note a fever and stridor on pulmonary exam. As you look into the oral cavity, you see that the tooth shown below has partially come out of the gums in the lower right jaw. There is swelling and stiffness of the jaw and sublingual space.
Challenge: What's the diagnosis?
1. What kind of tooth is that?
2. What's stridor?
First image in the public domain.