 Corticosteroids, often known as “steroids”, are man-made drugs that closely resemble cortisol, a hormone produced naturally by the adrenal gland, to regulate growth and immune function. They are anti-inflammatory medications ...

Tooth wear refers to loss of tooth substance by mean other than dental caries or dental trauma which caused by four phenomena .

Antibiotic resistance occurs when bacteria lose their sensitivity to antibiotics. It develops when a bacteria mutates or acquires a resistance gene. The rapid emergence of resistant bacteria is occurring worldwide, endangering ...

Addiction is a condition in which the body must have a drug to avoid physical and psychological withdrawal symptoms. Addiction first is dependence, during which the search for a drug dominates an individual’s life. An ...