Hyperemia is an increase in organ blood flow that occurs when organ or tissue metabolic activity increases. Hyperemia of the teeth indicates increased blood flow to pulp tissue (inflamed tissue) can cause dental sensitivity and may lead to an abscess.

Hyperemia causing tooth sensitivity is a possible complication of dental implant procedures. A dental implant involves putting a device into the jawbone which will later be attached to a tooth replacement. This process is usually very successful as the tooth replacement both looks and feels natural.