Henan Provincial People's Hospital

This study aims to find the best method to gently move the gum tissue aside when taking an impression for a dental crown. Researchers are comparing three common techniques—using a cord, a paste, or a cord with a special gel—to see which one works best and causes the least pain an…

This study aims to understand how different general anesthesia drugs affect the body's immune system in healthy people. Researchers will enroll 80 healthy young adults, give some of them specific anesthesia drugs, and collect blood samples before and after to analyze immune cell …