Henan Provincial People's Hospital

This study tests three ways to temporarily move the gums so dentists can take accurate impressions for dental crowns. 39 adults needing a single front tooth crown will receive one of three treatments: a retraction cord, a paste, or a cord plus a special gel. The goal is to see wh…

This study aimed to test a modified acupotomy technique for people with ankylosing spondylitis, a type of arthritis that causes back pain and stiffness. The approach used ultrasound to guide the procedure, with the goal of reducing disease activity. However, the study was withdra…

This study looks at how four different anesthesia drugs change the immune system in 80 healthy adults aged 20-30. Participants are randomly assigned to receive propofol, sevoflurane, ciprofol, or no anesthesia. Blood samples are taken before, right after, and 24 and 48 hours afte…