The hardened deposits that form on the teeth and can irritate the surrounding tissue, is called tartar or dental calculus. If good oral hygeine is not practiced, tartar can build up on the teeth and become hardened. This can irritate the gums and cause them to bleed.
It's called dental tartar. It forms after 48 hours of not removing dental plaque from your teeth.
Nervous system
Connective tissues separate the cartilage from the surrounding tissues. A break down of this tissue often leads to strain and pain in the joints.
encephalitis
It is called wrapped tissues
cancer
Cancer
anemia
gum disease
malignant.
lack of blood supply to the surrounding tissues
Lymphocytes.
Extravasation refers to the leakage of fluids from a vein into the surrounding tissues.