Cancer and cancer treatment can make a person more susceptible to infection and increase the risk of gum disease. Alcohol affects oral defense mechanisms. Stress impairs the body's immune response to bacterial invasion.
Magnetometry. Detailed magnetic survey known as magnetometry is an effective and efficient geophysical survey technique used to define areas of past human activity by mapping spatial variations and contrast in the magnetic properties of soil, subsoil and bedrock.
Esophageal manometry is a diagnostic test that uses tiny transducers or receivers that are integrated into a thin catheter or tube that is inserted into the esophagus to measure pressure. This device is used to measure the LES length and resting pressure, its ability to relax with swallowing, the contractile strength and coordination of the esophageal body, and the upper esophageal sphincter characteristics.