Previous x-rays of the head and neck, chronic candidiasis , and poor oral hygiene are also risk factors. Scientists have found a new antibacterial defensive 'swarm' in the nose. Any data you provide will be primarily stored and processed in the United States, pursuant to the laws of the United States, which may provide lesser privacy protections than European Economic Area countries. The surgeon controls the arms of the robot from a console and views the operation via a camera attached to an endoscope that has been inserted into the person's mouth.